用okhttp实现webSocket长连接

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因为项目需求极光不能满足当前推送量，只能寻别的改决方法。想到了webSocket，

Okhttp支持webSocket协议。

上代码：

在 build.gradle 配制 okhttp依赖

 compile 'com.squareup.okhttp3:okhttp:3.4.1'

加入网络权限:

<uses-permission android:name="android.permission.INTERNET"></uses-permission>

java 代码

创建一OkHttpClient 对像

 final  static OkHttpClient mOkHttpClient = new OkHttpClient.Builder()            .readTimeout(3000, TimeUnit.SECONDS)//设置读取超时时间            .writeTimeout(3000, TimeUnit.SECONDS)//设置写的超时时间            .connectTimeout(3000, TimeUnit.SECONDS)//设置连接超时时间            .build();

设置webSocket连接,回调

<pre name="code" class="java">String url="ws://10.0.0.20:8080/hyt/websocket.do?userId=1&userType=2"; //改成自已服务端的地址        Request request = new Request.Builder().url(url).build();        WebSocketCall webSocketCall = WebSocketCall.create(mOkHttpClient, request);        webSocketCall.enqueue(new WebSocketListener() {            private final ExecutorService sendExecutor = Executors.newSingleThreadExecutor();            private WebSocket webSocket;            @Override            public void onOpen(WebSocket webSocket, Response response) {                Log.d("WebSocketCall", "onOpen");                this.webSocket=webSocket;            }            /**             * 连接失败             * @param e             * @param response Present when the failure is a direct result of the response (e.g., failed             * upgrade, non-101 response code, etc.). {@code null} otherwise.             */            @Override            public void onFailure(IOException e, Response response) {                Log.d("WebSocketCall","onFailure");            }            /**             * 接收到消息             * @param message             * @throws IOException             */            @Override            public void onMessage(ResponseBody message) throws IOException {                final RequestBody response;                Log.d("WebSocketCall", "onMessage:" + message.source().readByteString().utf8());                if (message.contentType() == WebSocket.TEXT) {//                    response = RequestBody.create(WebSocket.TEXT, "你好");//文本格式发送消息                } else {                    BufferedSource source = message.source();                    Log.d("WebSocketCall", "onMessage:" + source.readByteString());                    response = RequestBody.create(WebSocket.BINARY, source.readByteString());                }                message.source().close();                sendExecutor.execute(new Runnable() {                    @Override                    public void run() {                        try {                            Thread.sleep(1000*60);                            webSocket.sendMessage(response);//发送消息                        } catch (IOException e) {                            e.printStackTrace(System.out);                        } catch (InterruptedException e) {                            e.printStackTrace();                        }                    }                });            }            @Override            public void onPong(Buffer payload) {                Log.d("WebSocketCall", "onPong:");            }            /**             * 关闭             * @param code The <a href="http://tools.ietf.org/html/rfc6455#section-7.4.1">RFC-compliant</a>             * status code.             * @param reason Reason for close or an empty string.             */            @Override            public void onClose(int code, String reason) {                sendExecutor.shutdown();            }        });

url地址改成自已服务端的地址

连接成功会回调onOpen()方法，可以拿到WebSocket对像，连接失败回调onFailure()方法，

服务端推送消息，我们可以通过onMessage()方法接收，同时我们也可以通过WebSocket对像的sendMessage方法给服务端发送消息。

以上完成

原码下载地址：http://download.csdn.net/detail/tong6320555/9611640

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