[英]Android with websocket communication (Node Websocket server and Android Java Client). Dosen't work on Android 4
我試圖用作Android客戶端Websocket - weberknecht用一個線程將每秒消息發送到Nodejs Websocket(js): Node WebSocket Server
它在android 2或2.3.3上運行正常,但是當我在android 4上運行時,我在websocket.connect()上遇到錯誤;
你知道為什么或我做錯了嗎?
我的代碼是:
public class MainThread extends Thread {
private boolean is_running;
private URI url = null;
private de.roderick.weberknecht.WebSocket websocket = null;
public MainThread() {
this.is_running = false;
try {
url = new URI("ws://192.168.1.88:8088/");
websocket = new WebSocketConnection(url);
websocket.setEventHandler(new WebSocketEventHandler() {
public void onOpen(){
System.out.println("--open");
}
public void onMessage(WebSocketMessage message){
System.out.println("--received message: " + message.getText());
}
public void onClose(){
System.out.println("--close");
}
});
} catch (WebSocketException wse) {
wse.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
} catch (URISyntaxException use) {
use.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
}
}
@Override
public void run() {
while(is_running){
try {
websocket.send("hello world");
Thread.sleep(10000);
}
catch (WebSocketException wse) {
wse.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
public void set_running(boolean is_running) {
if(is_running == true)
try {
websocket.connect();
this.is_running = is_running;
} catch (WebSocketException e) {
System.out.println(e.toString());
//e.printStackTrace();
}
}
}
和我在android 4上得到的錯誤:
ERROR/AndroidRuntime(562): FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.biskis.test.websocket/com.biskis.test.websocket.GameActivity}: android.os.NetworkOnMainThreadException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
at android.app.ActivityThread.access$600(ActivityThread.java:123)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4424)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.os.NetworkOnMainThreadException
at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1099)
at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:84)
at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
at libcore.io.IoBridge.connect(IoBridge.java:112)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.Socket.startupSocket(Socket.java:566)
at java.net.Socket.tryAllAddresses(Socket.java:127)
at java.net.Socket.<init>(Socket.java:177)
at java.net.Socket.<init>(Socket.java:149)
at de.roderick.weberknecht.WebSocketConnection.createSocket(WebSocketConnection.java:238)
at de.roderick.weberknecht.WebSocketConnection.connect(WebSocketConnection.java:83)
at com.biskis.test.websocket.MainThread.set_running(MainThread.java:76)
at com.biskis.test.websocket.GameActivity.onCreate(GameActivity.java:20)
at android.app.Activity.performCreate(Activity.java:4465)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
... 11 more
或者您是否知道如何以更好的方式將客戶端(java,android)通信到服務器(nodejs,websocket)?
謝謝。
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