{"id":1923,"date":"2024-06-02T05:38:11","date_gmt":"2024-06-02T05:38:11","guid":{"rendered":"https:\/\/www.nicekj.com\/?p=1923"},"modified":"2024-06-02T05:38:38","modified_gmt":"2024-06-02T05:38:38","slug":"android-chuliliushixiangying","status":"publish","type":"post","link":"https:\/\/www.nicekj.com\/android-chuliliushixiangying.html","title":{"rendered":"Android \u5904\u7406\u6d41\u5f0f\u54cd\u5e94"},"content":{"rendered":"<h2 data-id=\"heading-0\">\u524d\u8a00<\/h2>\n<p>\u4e0a\u4e00\u7bc7 <a href=\"https:\/\/juejin.cn\/post\/7352075662453768230\" target=\"_blank\" title=\"https:\/\/juejin.cn\/post\/7352075662453768230\" rel=\"noopener\">Stream Response \u6d41\u5f0f\u8fd4\u56de <\/a> \u4e2d\u5b66\u4e60\u4e86\u6d41\u5f0f\u8fd4\u56de\u7684\u6982\u5ff5\uff0c\u5e76\u5b66\u4e60\u4e86\u5728\u6d4f\u89c8\u5668\u7aef\u5904\u7406\u6d41\u5f0f\u54cd\u5e94\u7684\u4e24\u79cd\u65b9\u5f0f\u3002\u4e0b\u9762\u770b\u770b\u5982\u4f55\u5728 Android \u539f\u751f\u5b9e\u73b0\u4e2d\u5904\u7406\u6d41\u5f0f\u8fd4\u56de\u3002<\/p>\n<h2 data-id=\"heading-1\">\u54cd\u5e94 Stream Response<\/h2>\n<p>\u4ee5\u6700\u5e38\u7528\u7684 okhttp \u4e3a\u4f8b\uff0c\u6211\u4eec\u770b\u770b\u5982\u4f55\u5b9e\u73b0\u3002<\/p>\n<h3 data-id=\"heading-2\">okhttp \u5904\u7406<\/h3>\n<ul>\n<li>\u521b\u5efa client \u548c request<\/li>\n<\/ul>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">kotlin<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-kotlin code-block-extension-codeShowNum\" lang=\"kotlin\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-keyword\">object<\/span> OkHttpUtil {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">var<\/span> url = <span class=\"hljs-string\">\"http:\/\/localhost:8199\/stream_chat\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">    <span class=\"hljs-keyword\">val<\/span> request = Request.Builder().url(<span class=\"hljs-keyword\">this<\/span>.url).build()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">    <span class=\"hljs-keyword\">val<\/span> client = OkHttpClient.Builder().addInterceptor {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">        println(<span class=\"hljs-string\">\"request is <span class=\"hljs-subst\">${it.request()}<\/span>\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\">        <span class=\"hljs-keyword\">val<\/span> response = it.proceed(it.request())<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">        println(<span class=\"hljs-string\">\"response body header n<span class=\"hljs-subst\">${response.headers}<\/span>\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\">        println(<span class=\"hljs-string\">\"response body length <span class=\"hljs-subst\">${response.body?.contentLength()}<\/span>\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\">        response<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\">    }.build()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"15\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"16\">    ....<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"17\">}<\/span>\n<\/code><\/pre>\n<p>\u8fd9\u91cc\u5728\u62e6\u622a\u5668\u4e2d\u6253\u5370\u8bf7\u6c42\u548c\u54cd\u5e94\u7684\u90e8\u5206\u4fe1\u606f\uff0c\u53ef\u4ee5\u89c2\u5bdf\u4e00\u4e0b\u6d41\u5f0f\u54cd\u5e94\u662f\u5426\u7b26\u5408\u9884\u671f\u3002<\/p>\n<ul>\n<li>\u8fdb\u884c\u5f02\u6b65\u8bf7\u6c42<\/li>\n<\/ul>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">kotlin<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-kotlin code-block-extension-codeShowNum\" lang=\"kotlin\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">    <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">asyncCall<\/span><span class=\"hljs-params\">()<\/span><\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">        <span class=\"hljs-keyword\">val<\/span> call: Call = client.newCall(request)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">        call.enqueue(<span class=\"hljs-keyword\">object<\/span> : Callback {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">            <span class=\"hljs-keyword\">override<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">onFailure<\/span><span class=\"hljs-params\">(call: <span class=\"hljs-type\">Call<\/span>, e: <span class=\"hljs-type\">IOException<\/span>)<\/span><\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">                println(<span class=\"hljs-string\">\"onFailure() called with: call = <span class=\"hljs-variable\">$call<\/span>, e = <span class=\"hljs-variable\">$e<\/span>\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">                <span class=\"hljs-keyword\">if<\/span> (call.isCanceled().not()) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">                    call.cancel()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">                }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">            }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">            <span class=\"hljs-keyword\">override<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">onResponse<\/span><span class=\"hljs-params\">(call: <span class=\"hljs-type\">Call<\/span>, response: <span class=\"hljs-type\">Response<\/span>)<\/span><\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\">                println(<span class=\"hljs-string\">\"onResponse() called with: call = <span class=\"hljs-variable\">$call<\/span>, response = <span class=\"hljs-variable\">$response<\/span>\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\">                response.body?.let {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"15\">                    <span class=\"hljs-keyword\">val<\/span> reader = BufferedReader(InputStreamReader(it.byteStream()))<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"16\">                    <span class=\"hljs-keyword\">var<\/span> line = reader.readLine()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"17\">                    <span class=\"hljs-keyword\">while<\/span> (line != <span class=\"hljs-literal\">null<\/span>) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"18\">                        println(line)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"19\">                        line = reader.readLine()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"20\">                    }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"21\">                }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"22\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"23\">            }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"24\">        })<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"25\">    }<\/span>\n<\/code><\/pre>\n<p>\u901a\u8fc7 okhttp \u53d1\u8d77\u5f02\u6b65\u8bf7\u6c42\uff0c\u6309\u7167\u4e4b\u524d\u7684\u7ea6\u5b9a Response \u662f\u6309\u884c\u8fd4\u56de\u7684\uff08\u8fd9\u4e5f\u662f\u670d\u52a1\u7aef\u751f\u6210\u54cd\u5e94\u65f6\u4e3a\u4ec0\u4e48\u8981\u624b\u52a8\u6dfb\u52a0 <code>nn<\/code> \u7684\u539f\u56e0\uff0c\u5c31\u662f\u4e3a\u4e86\u53d1\u8d77\u8bf7\u6c42\u7684\u4e00\u65b9\u53ef\u4ee5\u6839\u636e\u6362\u884c\u8fdb\u884c\u5904\u7406\uff09\uff0c\u56e0\u6b64\u8fd9\u91cc\u5bf9\u4e8e response \u7684 body \u6309\u7167\u884c\u8fdb\u884c\u8bfb\u53d6\uff0c\u76f4\u5230\u7ed3\u675f\u3002<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">shell<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-shell code-block-extension-codeShowNum\" lang=\"shell\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">request is Request{method=GET, url=http:\/\/localhost:8199\/stream_chat}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">response body header <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">Cache-Control: no-cache<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">Connection: keep-alive<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">Content-Type: text\/event-stream<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">Date: Sun, 31 Mar 2024 01:24:34 GMT<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">Transfer-Encoding: chunked<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">response body length -1<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\">onResponse() called with: call = okhttp3.internal.connection.RealCall@1f1f0603, response = Response{protocol=http\/1.1, code=200, message=OK, url=http:\/\/localhost:8199\/stream_chat}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\">data: {\"code\":200,\"message\":\"success\",\"event\":{\"id\":\"7e304d9f0ebe42758b4d1cf9a048f295\",\"data\":\"\u670d\"}}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\">data: {\"code\":200,\"message\":\"success\",\"event\":{\"id\":\"7e304d9f0ebe42758b4d1cf9a048f295\",\"data\":\"\u52a1\"}}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"15\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"16\">data: {\"code\":200,\"message\":\"success\",\"event\":{\"id\":\"7e304d9f0ebe42758b4d1cf9a048f295\",\"data\":\"\u7aef\"}}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"17\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"18\">...<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"19\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"20\">data: {\"code\":200,\"message\":\"success\",\"event\":{\"id\":\"7e304d9f0ebe42758b4d1cf9a048f295\",\"data\":\"\u4e86\"}}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"21\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"22\">data: {\"code\":200,\"message\":\"success\",\"event\":{\"id\":\"7e304d9f0ebe42758b4d1cf9a048f295\",\"data\":\"\u3002\"}}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"23\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"24\">EOF<\/span>\n<\/code><\/pre>\n<p>\u4ece\u8fd4\u56de\u7ed3\u679c\u53ef\u4ee5\u770b\u5230\uff0cresponse \u7684 header \u4fe1\u606f\u4e2d Content-Type \u5c31\u662f <code>text\/event-stream<\/code> \u3002\u5bf9\u4e8e\u8fd4\u56de\u7ed3\u679c\u6309\u884c\u6253\u5370\u53ef\u4ee5\u770b\u5230\uff0c\u8fd9\u91cc\u548c\u4e4b\u524d\u5728\u6d4f\u89c8\u5668\u4e0a\u7528 fetch \u5904\u7406\u7684\u7ed3\u679c\u662f\u4e00\u6837\u7684\uff0c\u4e0d\u662f\u7ed3\u6784\u5316\u7684\u6570\u636e\uff0c\u5e76\u4e0d\u662f\u4e00\u4e2a\u6807\u51c6\u7684 json \uff0c\u9700\u8981\u5bf9\u8fd4\u56de\u7ed3\u679c\u8fdb\u884c\u7279\u6b8a\u5904\u7406\u3002\u5bf9\u4e8e\u8fd9\u79cd\u60c5\u51b5\uff0c\u6211\u4eec\u53ef\u4ee5\u501f\u52a9 okttp \u4e2d\u5bf9 SSE \u7684\u652f\u6301\u6765\u5b9e\u73b0\uff0c\u6bd5\u7adf SSE \u662f Web \u4e2d\u5b9a\u4e49\u7684\u6807\u51c6\u7ec4\u4ef6\uff0c\u5bf9\u4e8e\u8fd9\u79cd\u6570\u636e\u683c\u5f0f\u7684\u5904\u7406\uff0c\u9664\u4e86\u501f\u52a9 EventSource \u8fd8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u7684\u65b9\u5f0f\u3002<\/p>\n<h3 data-id=\"heading-3\">okhttp-sse<\/h3>\n<p>\u8fd9\u91cc\u9700\u8981\u9996\u5148\u9700\u8981\u6dfb\u52a0 okttp-sse \u7684\u4f9d\u8d56<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">gradle<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-gradle code-block-extension-codeShowNum\" lang=\"gradle\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">implementation 'com.squareup.okhttp3:okhttp-sse:4.12.0'<\/span>\n<\/code><\/pre>\n<p>okhttp-sse \u7684 API \u8bbe\u8ba1\u548c EventSource \u76f8\u4f3c\uff0c\u4f7f\u7528\u65b9\u6cd5\u4e5f\u5f88\u7b80\u5355<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">kotlin<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-kotlin code-block-extension-codeShowNum\" lang=\"kotlin\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">    sseHandler() {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">        <span class=\"hljs-keyword\">val<\/span> TAG = <span class=\"hljs-string\">\"OkHttpUtil\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">        <span class=\"hljs-keyword\">val<\/span> sseListener = <span class=\"hljs-keyword\">object<\/span> : EventSourceListener() {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">            <span class=\"hljs-keyword\">override<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">onOpen<\/span><span class=\"hljs-params\">(eventSource: <span class=\"hljs-type\">EventSource<\/span>, response: <span class=\"hljs-type\">Response<\/span>)<\/span><\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">                <span class=\"hljs-keyword\">super<\/span>.onOpen(eventSource, response)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">                log(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">                    TAG, <span class=\"hljs-string\">\"onOpen() called with: eventSource = <span class=\"hljs-variable\">$eventSource<\/span>, response = <span class=\"hljs-variable\">$response<\/span>\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">                )<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">            }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">            <span class=\"hljs-keyword\">override<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">onEvent<\/span><span class=\"hljs-params\">(<\/span><\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\">                eventSource: <span class=\"hljs-type\">EventSource<\/span>, id: <span class=\"hljs-type\">String<\/span>?, type: <span class=\"hljs-type\">String<\/span>?, <span class=\"hljs-keyword\">data<\/span>: <span class=\"hljs-type\">String<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\">            ) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\">                <span class=\"hljs-keyword\">super<\/span>.onEvent(eventSource, id, type, <span class=\"hljs-keyword\">data<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"15\">                log(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"16\">                    TAG,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"17\">                    <span class=\"hljs-string\">\"onEvent() called with: id = <span class=\"hljs-variable\">$id<\/span>, type = <span class=\"hljs-variable\">$type<\/span>, data = <span class=\"hljs-variable\">$data<\/span>\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"18\">                )<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"19\">            }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"20\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"21\">            <span class=\"hljs-keyword\">override<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">onFailure<\/span><span class=\"hljs-params\">(eventSource: <span class=\"hljs-type\">EventSource<\/span>, t: <span class=\"hljs-type\">Throwable<\/span>?, response: <span class=\"hljs-type\">Response<\/span>?)<\/span><\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"22\">                <span class=\"hljs-keyword\">super<\/span>.onFailure(eventSource, t, response)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"23\">                log(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"24\">                    TAG,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"25\">                    <span class=\"hljs-string\">\"onFailure() called with: eventSource = <span class=\"hljs-variable\">$eventSource<\/span>, t = <span class=\"hljs-variable\">$t<\/span>, response = <span class=\"hljs-variable\">$response<\/span>\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"26\">                )<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"27\">            }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"28\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"29\">            <span class=\"hljs-keyword\">override<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">onClosed<\/span><span class=\"hljs-params\">(eventSource: <span class=\"hljs-type\">EventSource<\/span>)<\/span><\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"30\">                <span class=\"hljs-keyword\">super<\/span>.onClosed(eventSource)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"31\">                log(TAG, <span class=\"hljs-string\">\"onClosed() called with: eventSource = <span class=\"hljs-variable\">$eventSource<\/span>\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"32\">            }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"33\">        }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"34\">        <span class=\"hljs-keyword\">val<\/span> eventSource = RealEventSource(request, sseListener)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"35\">        eventSource.connect(client)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"36\">    }<\/span>\n<\/code><\/pre>\n<p>EventSourceListener \u8fd9\u4e2a\u62bd\u8c61\u7c7b\u6709\u56db\u4e2a\u65b9\u6cd5\uff0c\u987e\u540d\u601d\u4e49\u5c31\u662f\u7528\u6765\u533a\u5206\u6574\u4e2a\u8bf7\u6c42\u8fc7\u7a0b\u7684\u5404\u4e2a\u9636\u6bb5\u3002<\/p>\n<p>\u53ef\u4ee5\u770b\u5230\u8fd9\u4e2a\u7528\u6cd5\u51e0\u4e4e\u548c\u6d4f\u89c8\u5668\u4e0a\u7684 EventSource \u4e00\u6a21\u4e00\u6837\uff0c\u552f\u4e00\u7684\u533a\u522b\u5c31\u662f\u6d4f\u89c8\u5668\u4e0a\u4e0d\u7528\u518d\u4e3b\u52a8\u89e6\u53d1 connect \u64cd\u4f5c\uff0c\u8fd9\u91cc\u9700\u8981\u4e3b\u52a8\u8c03\u7528 connect \u548c\u76f8\u5e94\u7684 client \u8fdb\u884c\u914d\u5408\u3002<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">java<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-java code-block-extension-codeShowNum\" lang=\"java\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">OKhttpUtil:onOpen() called with: eventSource = okhttp3.internal.sse.RealEventSource@735957be, response = Response{protocol=http\/<span class=\"hljs-number\">1.1<\/span>, code=<span class=\"hljs-number\">200<\/span>, message=OK, url=http:<span class=\"hljs-comment\">\/\/localhost:8199\/stream_chat}<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">OKhttpUtil:onEvent() called with: id = <span class=\"hljs-literal\">null<\/span>, type = <span class=\"hljs-literal\">null<\/span>, data = {<span class=\"hljs-string\">\"code\"<\/span>:<span class=\"hljs-number\">200<\/span>,<span class=\"hljs-string\">\"message\"<\/span>:<span class=\"hljs-string\">\"success\"<\/span>,<span class=\"hljs-string\">\"event\"<\/span>:{<span class=\"hljs-string\">\"id\"<\/span>:<span class=\"hljs-string\">\"a7bb4c79fdd3470bad61c1ade5a15031\"<\/span>,<span class=\"hljs-string\">\"data\"<\/span>:<span class=\"hljs-string\">\"\u670d\"<\/span>}}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">...<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">OKhttpUtil:onEvent() called with: id = <span class=\"hljs-literal\">null<\/span>, type = <span class=\"hljs-literal\">null<\/span>, data = {<span class=\"hljs-string\">\"code\"<\/span>:<span class=\"hljs-number\">200<\/span>,<span class=\"hljs-string\">\"message\"<\/span>:<span class=\"hljs-string\">\"success\"<\/span>,<span class=\"hljs-string\">\"event\"<\/span>:{<span class=\"hljs-string\">\"id\"<\/span>:<span class=\"hljs-string\">\"a7bb4c79fdd3470bad61c1ade5a15031\"<\/span>,<span class=\"hljs-string\">\"data\"<\/span>:<span class=\"hljs-string\">\"\u4e86\"<\/span>}}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">OKhttpUtil:onEvent() called with: id = <span class=\"hljs-literal\">null<\/span>, type = <span class=\"hljs-literal\">null<\/span>, data = {<span class=\"hljs-string\">\"code\"<\/span>:<span class=\"hljs-number\">200<\/span>,<span class=\"hljs-string\">\"message\"<\/span>:<span class=\"hljs-string\">\"success\"<\/span>,<span class=\"hljs-string\">\"event\"<\/span>:{<span class=\"hljs-string\">\"id\"<\/span>:<span class=\"hljs-string\">\"a7bb4c79fdd3470bad61c1ade5a15031\"<\/span>,<span class=\"hljs-string\">\"data\"<\/span>:<span class=\"hljs-string\">\"\u3002\"<\/span>}}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">OKhttpUtil:onClosed() called with: eventSource = okhttp3.internal.sse.RealEventSource@735957be<\/span>\n<\/code><\/pre>\n<p>\u4ece\u8f93\u51fa\u7ed3\u679c\u53ef\u4ee5\u770b\u5230\uff0c\u7528 okhttp-sse \u975e\u5e38\u65b9\u4fbf\uff0c\u5bf9\u4e8e SSE \u534f\u8bae\u7684\u652f\u6301\u5f88\u5b8c\u5584\u3002data \u4e2d\u8fd4\u56de\u7684\u5185\u5bb9\u5df2\u7ecf\u662f\u6807\u51c6\u7684 Json \u683c\u5f0f\u6570\u636e\u4e86\u3002<\/p>\n<p>\u8fd9\u6837\u6211\u4eec\u5c31\u53ef\u4ee5\u501f\u52a9 kotlin \u8d85\u5f3a\u7684\u8bed\u6cd5\u7cd6\u521b\u5efa\u4e00\u4e2a\u901a\u7528\u7684\u65b9\u6cd5\u6765\u5904\u7406 SSE \u7684\u54cd\u5e94\u7ed3\u679c\u4e86\u3002<\/p>\n<h4 data-id=\"heading-4\">\u652f\u6301\u6cdb\u578b\u7684 SSE Handler<\/h4>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">kotlin<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-kotlin code-block-extension-codeShowNum\" lang=\"kotlin\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">    <span class=\"hljs-keyword\">inline<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-type\">&lt;<span class=\"hljs-keyword\">reified<\/span> T&gt;<\/span> <span class=\"hljs-title\">sseHandler<\/span><span class=\"hljs-params\">(<span class=\"hljs-keyword\">noinline<\/span> callback: ((<span class=\"hljs-type\">T<\/span>) -&gt; <span class=\"hljs-type\">Unit<\/span>)? = <span class=\"hljs-literal\">null<\/span>)<\/span><\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">        <span class=\"hljs-keyword\">val<\/span> TAG = <span class=\"hljs-string\">\"OkHttpUtil\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">        <span class=\"hljs-keyword\">val<\/span> sseListener = <span class=\"hljs-keyword\">object<\/span> : EventSourceListener() {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">            <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">            <span class=\"hljs-keyword\">override<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">onEvent<\/span><span class=\"hljs-params\">(<\/span><\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">                eventSource: <span class=\"hljs-type\">EventSource<\/span>, id: <span class=\"hljs-type\">String<\/span>?, type: <span class=\"hljs-type\">String<\/span>?, <span class=\"hljs-keyword\">data<\/span>: <span class=\"hljs-type\">String<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">            ) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">                <span class=\"hljs-keyword\">super<\/span>.onEvent(eventSource, id, type, <span class=\"hljs-keyword\">data<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">                <span class=\"hljs-keyword\">val<\/span> result = jsonToObj&lt;T&gt;(<span class=\"hljs-keyword\">data<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\">                result?.let {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\">                    callback?.invoke(it)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\">                }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"15\">            }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"16\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"17\">            ...<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"18\">        }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"19\">        ...<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"20\">    }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"21\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"22\">    <span class=\"hljs-keyword\">inline<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-type\">&lt;<span class=\"hljs-keyword\">reified<\/span> T&gt;<\/span> <span class=\"hljs-title\">jsonToObj<\/span><span class=\"hljs-params\">(json: <span class=\"hljs-type\">String<\/span>)<\/span><\/span>: T? {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"23\">        <span class=\"hljs-keyword\">val<\/span> moshi = Moshi.Builder().add(KotlinJsonAdapterFactory()).build()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"24\">        <span class=\"hljs-keyword\">val<\/span> adapter = moshi.adapter(T::<span class=\"hljs-keyword\">class<\/span>.java)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"25\">        <span class=\"hljs-keyword\">return<\/span> adapter.fromJson(json)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"26\">    }    <\/span>\n<\/code><\/pre>\n<p>\u8fd9\u91cc\u76f4\u63a5\u5bf9 onEvent \u65b9\u6cd5\u8fd4\u56de\u7684 data \u5b57\u6bb5\u8fdb\u884c Json \u89e3\u6790\u3002 \u53ef\u4ee5\u7b80\u5355\u58f0\u660e\u4e00\u4e2a\u8fd4\u56de\u7ed3\u679c\u7684\u6570\u636e\u7c7b\u9a8c\u8bc1\u4e00\u4e0b\u3002<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">kotlin<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-kotlin code-block-extension-codeShowNum\" lang=\"kotlin\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-keyword\">data<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">SSEResult<\/span>(<span class=\"hljs-keyword\">val<\/span> id: String, <span class=\"hljs-keyword\">val<\/span> <span class=\"hljs-keyword\">data<\/span>: String)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-keyword\">data<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">SSResponse<\/span>(<span class=\"hljs-keyword\">val<\/span> code: <span class=\"hljs-built_in\">Int<\/span>, <span class=\"hljs-keyword\">val<\/span> message: String, <span class=\"hljs-keyword\">val<\/span> event: SSEResult)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">OkHttpUtil.sseHandler&lt;SSResponse&gt; {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">    println(it.event)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">}<\/span>\n<\/code><\/pre>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">shell<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-shell code-block-extension-codeShowNum\" lang=\"shell\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">SSEResult(id=c4c56c9be22146f289619bdc3d1f4b9d, data=\u670d)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">SSEResult(id=c4c56c9be22146f289619bdc3d1f4b9d, data=\u52a1)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">SSEResult(id=c4c56c9be22146f289619bdc3d1f4b9d, data=\u7aef)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">SSEResult(id=c4c56c9be22146f289619bdc3d1f4b9d, data=\u5b9e)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">SSEResult(id=c4c56c9be22146f289619bdc3d1f4b9d, data=\u65f6)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">.... <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">SSEResult(id=c4c56c9be22146f289619bdc3d1f4b9d, data=\u56de)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">SSEResult(id=c4c56c9be22146f289619bdc3d1f4b9d, data=\u6d88)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">SSEResult(id=c4c56c9be22146f289619bdc3d1f4b9d, data=\u606f)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\">SSEResult(id=c4c56c9be22146f289619bdc3d1f4b9d, data=\u4e86)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">SSEResult(id=c4c56c9be22146f289619bdc3d1f4b9d, data=\u3002)<\/span>\n<\/code><\/pre>\n<p>\u53ef\u4ee5\u770b\u5230\u4f7f\u7528\u6700\u7ec8\u8fd4\u7684\u6570\u636e\u683c\u5f0f\u5df2\u7ecf\u53ef\u4ee5\u7b26\u5408\u6309\u7167\u9884\u671f\u7684\u7ed3\u679c\u4e86\u3002<\/p>\n<h3 data-id=\"heading-5\">okhttp-sse \u5b9e\u73b0\u539f\u7406<\/h3>\n<p>\u8fd9\u91cc\u53ef\u4ee5\u518d\u7b80\u5355\u4e86\u89e3\u4e00\u4e0b okhttp-sse \u662f\u5982\u4f55\u5904\u7406\u6d41\u5f0f\u54cd\u5e94\u7684\u3002<\/p>\n<ul>\n<li>RealEventSource<\/li>\n<\/ul>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">kotlin<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-kotlin code-block-extension-codeShowNum\" lang=\"kotlin\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">processResponse<\/span><span class=\"hljs-params\">(response: <span class=\"hljs-type\">Response<\/span>)<\/span><\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">    response.use {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">      <span class=\"hljs-keyword\">if<\/span> (!response.isSuccessful) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">        listener.onFailure(<span class=\"hljs-keyword\">this<\/span>, <span class=\"hljs-literal\">null<\/span>, response)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">        <span class=\"hljs-keyword\">return<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">      }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">      <span class=\"hljs-keyword\">val<\/span> body = response.body!!<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\">      <span class=\"hljs-keyword\">if<\/span> (!body.isEventStream()) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">        listener.onFailure(<span class=\"hljs-keyword\">this<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\">            IllegalStateException(<span class=\"hljs-string\">\"Invalid content-type: <span class=\"hljs-subst\">${body.contentType()}<\/span>\"<\/span>), response)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\">        <span class=\"hljs-keyword\">return<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\">      }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"15\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"16\">      <span class=\"hljs-comment\">\/\/ This is a long-lived response. Cancel full-call timeouts.<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"17\">      call.timeoutEarlyExit()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"18\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"19\">      <span class=\"hljs-comment\">\/\/ Replace the body with an empty one so the callbacks can't see real data.<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"20\">      <span class=\"hljs-keyword\">val<\/span> response = response.newBuilder()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"21\">          .body(EMPTY_RESPONSE)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"22\">          .build()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"23\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"24\">      <span class=\"hljs-keyword\">val<\/span> reader = ServerSentEventReader(body.source(), <span class=\"hljs-keyword\">this<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"25\">      <span class=\"hljs-keyword\">try<\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"26\">        listener.onOpen(<span class=\"hljs-keyword\">this<\/span>, response)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"27\">        <span class=\"hljs-keyword\">while<\/span> (reader.processNextEvent()) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"28\">        }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"29\">      } <span class=\"hljs-keyword\">catch<\/span> (e: Exception) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"30\">        listener.onFailure(<span class=\"hljs-keyword\">this<\/span>, e, response)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"31\">        <span class=\"hljs-keyword\">return<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"32\">      }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"33\">      listener.onClosed(<span class=\"hljs-keyword\">this<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"34\">    }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"35\">  }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"36\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"37\">  <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> ResponseBody.<span class=\"hljs-title\">isEventStream<\/span><span class=\"hljs-params\">()<\/span><\/span>: <span class=\"hljs-built_in\">Boolean<\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"38\">    <span class=\"hljs-keyword\">val<\/span> contentType = contentType() ?: <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-literal\">false<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"39\">    <span class=\"hljs-keyword\">return<\/span> contentType.type == <span class=\"hljs-string\">\"text\"<\/span> &amp;&amp; contentType.subtype == <span class=\"hljs-string\">\"event-stream\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"40\">  }<\/span>\n<\/code><\/pre>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u5f88\u597d\u7406\u89e3\uff0c\u7b80\u5355\u800c\u4f18\u96c5\u7684\u5448\u73b0\u4e86\u5904\u7406\u670d\u52a1\u7aef\u54cd\u5e94\u7684\u5404\u79cd\u573a\u666f\u3002<\/p>\n<ul>\n<li>\u9996\u5148\uff0c\u5904\u7406\u8bf7\u6c42\u662f\u5426\u6210\u529f\u76f8\u5e94<\/li>\n<li>\u5176\u6b21\uff0c\u5224\u65ad\u8fd4\u56de\u7ed3\u679c\u662f\u5426\u4e3a\u6d41\u5f0f\u54cd\u5e94\u3002\u5728\u6ca1\u770b\u5230\u8fd9\u65ad\u4ee3\u7801\u4e4b\u524d\uff0c\u8111\u6d77\u4e2d\u7684\u5b9e\u73b0\u65b9\u5f0f\u53ea\u6709 <code>contentType == \"text\/event-stream\"<\/code> \uff0c\u800c\u8fd9\u91cc\u7684\u5b9e\u73b0\u65b9\u5f0f\u5c31\u663e\u5f97\u66f4\u52a0\u7684\u4f18\u96c5\uff0c\u5b8c\u7f8e\u7684\u8be0\u91ca\u4e86\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\uff0c\u4e00\u5207\u5185\u5bb9\u53ef\u4ee5\u5c01\u88c5\u4e3a\u5bf9\u8c61\u3002<\/li>\n<li>\u6d41\u5f0f\u54cd\u5e94\u7684\u65f6\u95f4\u4e00\u822c\u4f1a\u6210\u957f\uff0c\u56e0\u6b64\u8fd9\u91cc\u53d6\u6d88 OkHttp \u56fa\u6709\u7684\u8d85\u65f6\u9000\u51fa\u673a\u5236\uff0c\u907f\u514d\u8bf7\u6c42\u88ab\u6253\u65ad\u3002<\/li>\n<li>\u5bf9\u4e8e ResponseBody \u8fd4\u56de\u4e86\u4e00\u4e2a\u7a7a\u7ed3\u679c\uff0c\u907f\u514d\u4e0b\u6e38\u68c0\u6d4b ResponseBody \u4e3a\u7a7a\u65f6\u51fa\u73b0\u5f02\u5e38\u3002<\/li>\n<li>\u521b\u5efa ServerSentEventReader \u5bf9\u6d41\u5f0f\u8fd4\u56de\u7ed3\u679c\u8fdb\u884c\u8bfb\u53d6<\/li>\n<li>\u6700\u540e\u5173\u95ed\u8fde\u63a5\u3002<\/li>\n<\/ul>\n<p>\u53ef\u4ee5\u770b\u5230\u6700\u5173\u952e\u7684\u5b9e\u73b0\u903b\u8f91\u5c31\u5728 <code>reader.processNextEvent()<\/code> \u91cc<\/p>\n<ul>\n<li>ServerSentEventReader<\/li>\n<\/ul>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">kotlin<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-kotlin code-block-extension-codeShowNum\" lang=\"kotlin\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">ServerSentEventReader<\/span>(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">  <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">val<\/span> source: BufferedSource,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">  <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">val<\/span> callback: Callback<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">  <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">var<\/span> lastId: String? = <span class=\"hljs-literal\">null<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">  <span class=\"hljs-keyword\">interface<\/span> <span class=\"hljs-title class_\">Callback<\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">    <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">onEvent<\/span><span class=\"hljs-params\">(id: <span class=\"hljs-type\">String<\/span>?, type: <span class=\"hljs-type\">String<\/span>?, <span class=\"hljs-keyword\">data<\/span>: <span class=\"hljs-type\">String<\/span>)<\/span><\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">    <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">onRetryChange<\/span><span class=\"hljs-params\">(timeMs: <span class=\"hljs-type\">Long<\/span>)<\/span><\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\">  }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\">  <span class=\"hljs-comment\">\/**<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\">   * Process the next event. This will result in a single call to [Callback.onEvent] *unless* the<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\">   * data section was empty. Any number of calls to [Callback.onRetryChange] may occur while<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"15\">   * processing an event.<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"16\">   *<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"17\">   * <span class=\"hljs-doctag\">@return<\/span> false when EOF is reached<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"18\">   *\/<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"19\">  <span class=\"hljs-meta\">@Throws(IOException::class)<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"20\">  <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">processNextEvent<\/span><span class=\"hljs-params\">()<\/span><\/span>: <span class=\"hljs-built_in\">Boolean<\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"21\">    <span class=\"hljs-keyword\">var<\/span> id = lastId<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"22\">    <span class=\"hljs-keyword\">var<\/span> type: String? = <span class=\"hljs-literal\">null<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"23\">    <span class=\"hljs-keyword\">val<\/span> <span class=\"hljs-keyword\">data<\/span> = Buffer()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"24\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"25\">    <span class=\"hljs-keyword\">while<\/span> (<span class=\"hljs-literal\">true<\/span>) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"26\">      <span class=\"hljs-keyword\">when<\/span> (source.select(options)) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"27\">        <span class=\"hljs-keyword\">in<\/span> <span class=\"hljs-number\">0.<\/span><span class=\"hljs-number\">.2<\/span> -&gt; {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"28\">          completeEvent(id, type, <span class=\"hljs-keyword\">data<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"29\">          <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-literal\">true<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"30\">        }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"31\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"32\">        <span class=\"hljs-keyword\">in<\/span> <span class=\"hljs-number\">3.<\/span><span class=\"hljs-number\">.4<\/span> -&gt; {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"33\">          source.readData(<span class=\"hljs-keyword\">data<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"34\">        }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"35\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"36\">        .....<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"37\">      }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"38\">    }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"39\">  }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"40\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"41\">  <span class=\"hljs-meta\">@Throws(IOException::class)<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"42\">  <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">completeEvent<\/span><span class=\"hljs-params\">(id: <span class=\"hljs-type\">String<\/span>?, type: <span class=\"hljs-type\">String<\/span>?, <span class=\"hljs-keyword\">data<\/span>: <span class=\"hljs-type\">Buffer<\/span>)<\/span><\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"43\">    <span class=\"hljs-keyword\">if<\/span> (<span class=\"hljs-keyword\">data<\/span>.size != <span class=\"hljs-number\">0L<\/span>) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"44\">      lastId = id<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"45\">      <span class=\"hljs-keyword\">data<\/span>.skip(<span class=\"hljs-number\">1L<\/span>) <span class=\"hljs-comment\">\/\/ Leading newline.<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"46\">      callback.onEvent(id, type, <span class=\"hljs-keyword\">data<\/span>.readUtf8())<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"47\">    }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"48\">  }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"49\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"50\">  <span class=\"hljs-keyword\">companion<\/span> <span class=\"hljs-keyword\">object<\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"51\">    <span class=\"hljs-keyword\">val<\/span> options = Options.of(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"52\">        <span class=\"hljs-comment\">\/*  0 *\/<\/span> <span class=\"hljs-string\">\"rn\"<\/span>.encodeUtf8(),<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"53\">        <span class=\"hljs-comment\">\/*  1 *\/<\/span> <span class=\"hljs-string\">\"r\"<\/span>.encodeUtf8(),<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"54\">        <span class=\"hljs-comment\">\/*  2 *\/<\/span> <span class=\"hljs-string\">\"n\"<\/span>.encodeUtf8(),<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"55\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"56\">        <span class=\"hljs-comment\">\/*  3 *\/<\/span> <span class=\"hljs-string\">\"data: \"<\/span>.encodeUtf8(),<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"57\">        <span class=\"hljs-comment\">\/*  4 *\/<\/span> <span class=\"hljs-string\">\"data:\"<\/span>.encodeUtf8(),<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"58\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"59\">       <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"60\">    )<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"61\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"62\">    ...<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"63\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"64\">  }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"65\">}<\/span>\n<\/code><\/pre>\n<p>\u8fd9\u91cc\u6211\u4eec\u622a\u53d6\u90e8\u5206\u4ee3\u7801\u5b9e\u73b0\uff0c\u5177\u4f53\u5176\u5b9e\u6ca1\u6709\u4ec0\u4e48\u7279\u522b\u4e4b\u5904\uff0c\u5c31\u662f\u57fa\u4e8e\u8fd4\u56de\u7684 String \u5b57\u7b26\u4e32\u5185\u5bb9\u8fdb\u884c\u5224\u65ad\u5904\u7406\uff0c\u9047\u5230\u884c\u672b\u7684\u6362\u884c\u7b26\u5c31\u8fd4\u56de\u7ed3\u679c\uff0c\u5426\u5219\u5c31\u4e00\u6b21\u8bfb\u53d6\u4e2d\u95f4\u7684 data,id,event \u5b57\u6bb5\u3002\u540c\u65f6\u8fd8\u4f1a\u517c\u987e\u5904\u7406\u91cd\u8bd5\u7684\u903b\u8f91\uff0c\u76f4\u5230\u9047\u5230 EOF \u4e3a\u6b62\u3002\u76f8\u6bd4\u6211\u4eec\u76f4\u63a5\u7528\u4f20\u7edf\u7684\u8bf7\u6c42\u65b9\u5f0f\u5904\u7406\uff0c\u5b98\u65b9\u5c01\u88c5\u7684\u5e93\u5bf9\u4e8e\u5f88\u591a\u7ec6\u8282\u7684\u5bb9\u9519\u6027\u660e\u663e\u4f1a\u66f4\u597d\uff0c\u5f88\u591a\u6211\u4eec\u60f3\u4e0d\u5230\u6216\u8005\u672a\u66fe\u9047\u5230\u7684\u5751\u65e9\u5df2\u7ecf\u5904\u7406\u597d\u4e86\u3002<\/p>\n<h2 data-id=\"heading-6\">\u6e32\u67d3\u6570\u636e<\/h2>\n<p>\u6211\u4eec\u53ef\u4ee5\u7b80\u5355\u7ed8\u5236\u4e00\u4e2a\u5217\u8868\u770b\u4e00\u4e0b\uff0c\u5b9e\u9645\u6e32\u67d3\u7684\u6548\u679c<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">kotlin<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-kotlin code-block-extension-codeShowNum\" lang=\"kotlin\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-meta\">@Composable<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">ChatScreen<\/span><span class=\"hljs-params\">(viewModel: <span class=\"hljs-type\">ChatViewModel<\/span> = viewModel()<\/span><\/span>) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">    <span class=\"hljs-keyword\">var<\/span> inpuValue <span class=\"hljs-keyword\">by<\/span> remember { mutableStateOf(<span class=\"hljs-string\">\"\"<\/span>) }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">    <span class=\"hljs-keyword\">val<\/span> msg <span class=\"hljs-keyword\">by<\/span> viewModel.messageList.observeAsState(ArrayList())<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">    Column(modifier = Modifier.fillMaxSize()) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">        <span class=\"hljs-comment\">\/\/ \u6d88\u606f\u5217\u8868<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">        MessageList(messages = temp, modifier = Modifier.weight(<span class=\"hljs-number\">1f<\/span>))<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">        <span class=\"hljs-comment\">\/\/ \u8f93\u5165\u6846\u548c\u53d1\u9001\u6309\u94ae<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">        InputArea(inpuValue, viewModel) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\">            inpuValue = it<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">        }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\">    }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\">}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"15\"><span class=\"hljs-meta\">@Composable<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"16\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">InputArea<\/span><span class=\"hljs-params\">(inputValue: <span class=\"hljs-type\">String<\/span>, viewModel: <span class=\"hljs-type\">ChatViewModel<\/span>, messageText: (<span class=\"hljs-type\">String<\/span>) -&gt; <span class=\"hljs-type\">Unit<\/span>)<\/span><\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"17\">    Row(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"18\">        modifier = Modifier<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"19\">            .fillMaxWidth()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"20\">            .padding(<span class=\"hljs-number\">8.<\/span>dp),<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"21\">        verticalAlignment = Alignment.CenterVertically<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"22\">    ) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"23\">        OutlinedTextField(value = inputValue,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"24\">            onValueChange = { messageText(it) },<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"25\">            modifier = Modifier.weight(<span class=\"hljs-number\">1f<\/span>),<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"26\">            label = { Text(text = <span class=\"hljs-string\">\"\u8f93\u5165\u6d88\u606f\"<\/span>) },<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"27\">            textStyle = MaterialTheme.typography.bodyMedium,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"28\">            keyboardOptions = KeyboardOptions(imeAction = ImeAction.Send),<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"29\">            keyboardActions = KeyboardActions(onSend = {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"30\">                <span class=\"hljs-keyword\">if<\/span> (inputValue.isNotEmpty()) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"31\">                    sendMessage(viewModel, inputValue)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"32\">                    messageText(<span class=\"hljs-string\">\"\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"33\">                }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"34\">            })<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"35\">        )<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"36\">        Spacer(modifier = Modifier.width(<span class=\"hljs-number\">8.<\/span>dp))<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"37\">        Button(onClick = {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"38\">            <span class=\"hljs-keyword\">if<\/span> (inputValue.isNotEmpty()) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"39\">                sendMessage(viewModel, inputValue)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"40\">                messageText(<span class=\"hljs-string\">\"\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"41\">            }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"42\">        }) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"43\">            Text(<span class=\"hljs-string\">\"Send\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"44\">        }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"45\">    }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"46\">}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"47\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"48\"><span class=\"hljs-meta\">@Composable<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"49\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">MessageList<\/span><span class=\"hljs-params\">(messages: <span class=\"hljs-type\">ArrayList<\/span>&lt;<span class=\"hljs-type\">ChatMessage<\/span>&gt;, modifier: <span class=\"hljs-type\">Modifier<\/span>)<\/span><\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"50\">    Log.d(<span class=\"hljs-string\">\"TAG_TAG\"<\/span>, <span class=\"hljs-string\">\"msg <span class=\"hljs-variable\">$messages<\/span>\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"51\">    LazyColumn(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"52\">        modifier = modifier<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"53\">    ) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"54\">        items(messages.size, key = { it }) { index -&gt;<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"55\">            ChatMessageItem(message = messages[index])<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"56\">        }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"57\">    }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"58\">}<\/span>\n<\/code><\/pre>\n<p>\u5927\u6982\u6548\u679c\u662f\u8fd9\u6837<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/3dc4bd3089b7b8f91d95c060d4688449.png\" alt=\"chat_shot.png\" \/><\/figure>\n<\/p>\n<p>\u6211\u4eec\u5728 ViewModel \u4e2d\u8bf7\u6c42\u6570\u636e\u771f\u5b9e\u7684\u6570\u636e\u4e4b\u540e\uff0c\u66f4\u65b0 LiveData \u4e2d\u7684\u6570\u636e\u5c31\u53ef\u4ee5\u5b9e\u73b0\u5217\u8868\u5237\u65b0\u7684\u6548\u679c\u4e86\u3002<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">kotlin<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-kotlin code-block-extension-codeShowNum\" lang=\"kotlin\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">    <span class=\"hljs-function\"><span class=\"hljs-keyword\">fun<\/span> <span class=\"hljs-title\">queryResult<\/span><span class=\"hljs-params\">(response: <span class=\"hljs-type\">String<\/span>)<\/span><\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">        <span class=\"hljs-keyword\">val<\/span> history = _messageList.value ?: ArrayList()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">        <span class=\"hljs-keyword\">val<\/span> lastMsg = history.last()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">        chatBuffer.append(response)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">        <span class=\"hljs-keyword\">if<\/span> (lastMsg.sender == <span class=\"hljs-string\">\"Bot\"<\/span>) {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">            <span class=\"hljs-keyword\">val<\/span> newMsg = ChatMessage(<span class=\"hljs-string\">\"Bot\"<\/span>, chatBuffer.toString(), <span class=\"hljs-literal\">false<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">            history[history.size - <span class=\"hljs-number\">1<\/span>] = newMsg<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">        } <span class=\"hljs-keyword\">else<\/span> {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">            <span class=\"hljs-keyword\">val<\/span> newMsg = ChatMessage(<span class=\"hljs-string\">\"Bot\"<\/span>, chatBuffer.toString(), <span class=\"hljs-literal\">false<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\">            history.add(newMsg)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">        }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\">        Log.d(TAG, <span class=\"hljs-string\">\"history <span class=\"hljs-variable\">$history<\/span>\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\">        _messageList.postValue(history)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"15\">    }<\/span>\n<\/code><\/pre>\n<p>\u53ef\u4ee5\u770b\u4e00\u4e0b Compose \u5217\u8868\u5237\u65b0\u7684\u6548\u679c\u3002<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/6c472f2ad66b2211e4914b5f860ad064.png\" alt=\"chat.gif\" \/><\/figure>\n<\/p>\n<p>\u53ef\u4ee5\u770b\u5230\u5b9e\u9645\u6548\u679c\u8fd8\u662f\u633a\u6d41\u7545\u7684\u3002<\/p>\n<p>ps: \u7528 Jetpack Compose \u5199\u5217\u8868\u662f\u771f\u7684\u65b9\u4fbf\uff0c\u4e0d\u8fc7\u5904\u7406\u8d77\u952e\u76d8\u8fd8\u771f\u662f\u633a\u9ebb\u70e6\u3002<\/p>\n<h2 data-id=\"heading-7\">\u5176\u4ed6<\/h2>\n<p>\u5728 OpenAI \u5b98\u7f51\u7684 API \u4ecb\u7ecd\u4e2d\uff0c\u5bf9\u4e8e SSE \u7684\u54cd\u5e94\u4e5f\u662f\u5efa\u8bae\u4f7f\u7528\u5b98\u65b9\u63d0\u4f9b\u7684\u5e93\u76f4\u63a5\u5904\u7406\u3002\u907f\u514d\u4e00\u4e9b\u4e0d\u5fc5\u8981\u7684\u95ee\u9898\u3002<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/df6c6326718bca179e5bc481c61367c4.png\" alt=\"adviance.png\" \/><\/figure>\n<\/p>\n<p>\u5728<a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fplatform.openai.com%2Fdocs%2Flibraries%2Fcommunity-libraries\" target=\"_blank\" title=\"https:\/\/platform.openai.com\/docs\/libraries\/community-libraries\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">OpenAI \u63a8\u8350\u7684\u793e\u533a\u5e93<\/a> \u4e2d\uff0c\u53ef\u4ee5\u770b\u5230\u5bf9\u4e3b\u6d41\u8bed\u8a00\u7684\u652f\u6301\u975e\u5e38\u597d\uff0cJava\/Kotinl\/NodeJs\/Python\/Swift \u7b49\u8fd9\u4e9b\u90fd\u6709\u652f\u6301\uff0c\u751a\u81f3 Flutter \u90fd\u6709\u3002<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/f7bd8678e00bad9e275b7af680f52716.png\" alt=\"adv2.png\" \/><\/figure>\n<\/p>\n<p>\u5bf9\u4e8e\u50cf SSE \u8fd9\u79cd\u534f\u8bae\u7684\u4f7f\u7528\uff0c\u4f7f\u7528\u5b98\u65b9\u6216\u8005\u5f00\u6e90\u793e\u533a\u8d21\u732e\u7684\u8f6e\u5b50\u65e0\u7591\u662f\u6700\u597d\u7684\u9009\u62e9\uff0c\u6bd5\u7adf\u8fd9\u4e9b\u8f6e\u5b50\u90fd\u662f\u8fdb\u8fc7\u5404\u79cd\u573a\u666f\u9a8c\u8bc1\u7684\uff0c\u80fd\u8986\u76d6\u66f4\u591a\u573a\u666f\uff0c\u540c\u65f6\u4e5f\u66f4\u52a0\u7684\u5b8c\u5584\uff0c\u53ef\u4ee5\u5c3d\u53ef\u80fd\u907f\u514d\u6211\u4eec\u88ab\u540c\u4e00\u5757\u77f3\u5934\u518d\u6b21\u7eca\u5012\u3002<\/p>\n<h2 data-id=\"heading-8\">\u53c2\u8003\u6587\u6863<\/h2>\n<ul>\n<li><strong><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fchat.openai.com%2Fchat\" target=\"_blank\" title=\"https:\/\/chat.openai.com\/chat\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">ChatGPT<\/a><\/strong><\/li>\n<li><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fplatform.openai.com%2Fdocs%2Flibraries%2Fcommunity-libraries\" target=\"_blank\" title=\"https:\/\/platform.openai.com\/docs\/libraries\/community-libraries\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">OpenAI \u63a8\u8350\u7684\u793e\u533a\u5e93<\/a><\/li>\n<li><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fblog.csdn.net%2Fguolin_blog%2Farticle%2Fdetails%2F135038175\" target=\"_blank\" title=\"https:\/\/blog.csdn.net\/guolin_blog\/article\/details\/135038175\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">\u5199\u7ed9\u521d\u5b66\u8005\u7684Jetpack Compose\u6559\u7a0b\uff0cLazy Layout<\/a><\/li>\n<li><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fblog.csdn.net%2Fguolin_blog%2Farticle%2Fdetails%2F133970363\" target=\"_blank\" title=\"https:\/\/blog.csdn.net\/guolin_blog\/article\/details\/133970363\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">\u5199\u7ed9\u521d\u5b66\u8005\u7684Jetpack Compose\u6559\u7a0b\uff0c\u4f7f\u7528State\u8ba9\u754c\u9762\u52a8\u8d77\u6765<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>\u5bf9\u4e8e\u50cf SSE \u8fd9\u79cd\u534f\u8bae\u7684\u4f7f\u7528\uff0c\u4f7f\u7528\u5b98\u65b9\u6216\u8005\u5f00\u6e90\u793e\u533a\u8d21\u732e\u7684\u8f6e\u5b50\u65e0\u7591\u662f\u6700\u597d\u7684\u9009\u62e9\uff0c\u6bd5\u7adf\u8fd9\u4e9b\u8f6e\u5b50\u90fd\u662f\u8fdb\u8fc7\u5404\u79cd\u573a\u666f\u9a8c\u8bc1\u7684\uff0c\u80fd\u8986\u76d6\u66f4\u591a\u573a\u666f\uff0c\u540c\u65f6\u4e5f\u66f4\u52a0\u7684\u5b8c\u5584\uff0c\u53ef\u4ee5\u5c3d\u53ef\u80fd\u907f\u514d\u6211\u4eec\u88ab\u540c\u4e00\u5757\u77f3\u5934\u518d\u6b21\u7eca\u5012\u3002<\/p>\n","protected":false},"author":1,"featured_media":12102,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"rank_math_title":"","rank_math_description":"","rank_math_focus_keyword":"","views":"8","footnotes":""},"categories":[3],"tags":[126,127,128,129,136],"collection":[],"class_list":["post-1923","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fenlei2","tag-gpt","tag-ai","tag-128","tag-129","tag-136"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts\/1923","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/comments?post=1923"}],"version-history":[{"count":0,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts\/1923\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/media\/12102"}],"wp:attachment":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/media?parent=1923"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/categories?post=1923"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/tags?post=1923"},{"taxonomy":"collection","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/collection?post=1923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}