android socket 崩溃,【求助】请教各位大神，执行到建立Socket的语句就崩溃了的原因？...

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一运行socket = new Socket(mip,mport);软件就“已停止运行”原因是什么？

具体情况：在一个service的onStart里面调用了private void tryconnect(){

Log.d("service","tryconnect");

try {

Log.d("service","trysocket"); /*这是显示的最后一条日志了……捕获异常的日志都没有*/

socket = new Socket(mip,mport);

Log.d("service","endtrysockrt");

} catch (UnknownHostException e) {

Log.d("service", "newSocketUnknownHostException e");

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

Log.d("service", "newSOcketIOException e:connectThread");

// TODO Auto-generated catch block

e.printStackTrace();

Log.d("service", "newSOcketIOException e");

}

service里面有

@Override

public void onCreate(){

super.onCreate();

Log.d("service", "serviceoncreate");

};

@Override

public void onStart(Intent intent, int startId) {

super.onStart(intent, startId);

Log.d("service", "onstart");

//toggleWiFi(this, true);

Log.d("service", "openedwifi");

tryconnect();

Log.d("service", "tryconnect");

//receivein();

Log.d("service", "receivein");

}

相关日志是

04-19 09:51:01.470: D/service(24171): serviceoncreate

04-19 09:51:01.480: D/service(24171): onstart

04-19 09:51:01.480: D/service(24171): openedwifi

04-19 09:51:01.480: D/service(24171): ENTER:tryconnect

04-19 09:51:01.480: D/service(24171): trysocket

XML里的权限是

各位的大神，这是怎么回事啊？愁死了……