开发过程,部分需要webSocket,这里使用 okhttp 自带socket。
一、依赖:com.squareup.okhttp3:okhttp:4.9.0
二、创建webSocket
1、创建okhttpClient和Request
public void init(){
//初始化okhttpClient
mBuilder = new OkHttpClient.Builder();
//设置读取超时时间
mBuilder.readTimeout(120, TimeUnit.SECONDS);
//设置写的超时时间
mBuilder.writeTimeout(120, TimeUnit.SECONDS);
//设置连接超时时间
mBuilder.connectTimeout(120, TimeUnit.SECONDS);
//心跳时间
mBuilder.pingInterval(10,TimeUnit.SECONDS);
mOkHttpClient = mBuilder.build();
//初始化request
mRequest = new Request.Builder().url(socketUrl).build();
}
2、创建webSocket并获取socket对象
public void connect(){
mWebSocket = mOkHttpClient.newWebSocket(mRequest, new WebSocketListener() {
@Override
public void onOpen(final WebSocket webSocket, final Response response) {
super.onOpen(webSocket, response);
//socket 连接成功(需要自己切换到主线程)
}
@Override
public void onMessage(WebSocket webSocket, final String text) {
super.onMessage(webSocket, text);
//socket 获取String 类型数据(需要自己切换到主线程)
}
@Override
public void onMessage(WebSocket webSocket, ByteString bytes) {
super.onMessage(webSocket, bytes);
//socket 获取ByteString 类型数据(需要自己切换到主线程)
}
@Override
public void onClosing(final WebSocket webSocket, final int code, final String reason) {
super.onClosing(webSocket, code, reason);
}
@Override
public void onClosed(final WebSocket webSocket, final int code, final String reason) {
super.onClosed(webSocket, code, reason);
//释放连接
}
@Override
public void onFailure(final WebSocket webSocket, final Throwable t, final Response response) {
super.onFailure(webSocket, t, response);
//其他异常,都会执行这个方法
}
});
}
}
三、数据交互 mWebSocket.send(msg);
四、关闭webSocket
如果只是关闭连接可采用:
1、mWebSocket.close(code,reason),则WebSocketListener.onClosed()会被调用。这里需要注意是code码,不可以随便传递。可以参考文档 https://tools.ietf.org/html/rfc6455#section-7.4。
2、mWebSocket.cancel(),则WebSocketListener.onFailure()会被调用