Android：HTTPCLIENT POST - 无法将数据发送到服务器

Question

您好，我尝试使用httpclient将数据发送到服务器。

这里是我的代码

public class MainActivity extends Activity implements OnClickListener { 
private String TAG; 

/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    Button press = (Button) findViewById(R.id.button1); 
    press.setOnClickListener(this); 
} 

@Override 
public void onClick(View v) { 
    switch (v.getId()) { 
    case R.id.button1: 

     String usrName = ((EditText) findViewById(R.id.usrName)).getText() 
       .toString().trim(); 
     String age = ((EditText) findViewById(R.id.age)).getText() 
       .toString().trim(); 

     Toast.makeText(getApplicationContext(), 
       "username:: " + usrName + "---Age::" + age, 
       Toast.LENGTH_SHORT).show(); 

     // Create a new HttpClient and Post Header 
     HttpClient httpclient = new DefaultHttpClient(); 

     HttpPost httppost = new HttpPost("http://192.168.1.40"); 
     String resp = null; 

     try { 
      // create data to POST 
      List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(
        5); 
      nameValuePairs.add(new BasicNameValuePair("UserName", usrName)); 
      nameValuePairs.add(new BasicNameValuePair("Age", age)); 

      httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 

      // Execute HTTP Post Request 
      HttpResponse response = httpclient.execute(httppost); 

      resp = response.toString(); 

     } catch (ClientProtocolException e) { 
      System.out.println("---" + e.getMessage()); 
     } catch (IOException e1) { 
      System.out.println("---" + e1.getMessage()); 
     } 

     Log.i(TAG, "RTT inside post-data: " + time_passed); 

     Log.i(TAG, resp.toString()); 

     break; 
    case R.id.send: 

    default: 
     break; 
    } 

} 

} 

我收到此错误的logcat

06-07 18:23:45.650: E/AndroidRuntime(2387): FATAL EXCEPTION: main 
06-07 18:23:45.650: E/AndroidRuntime(2387): android.os.NetworkOnMainThreadException 
06-07 18:23:45.650: E/AndroidRuntime(2387): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1099) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:84) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at libcore.io.IoBridge.connectErrno(IoBridge.java:127) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at libcore.io.IoBridge.connect(IoBridge.java:112) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at java.net.Socket.connect(Socket.java:842) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:119) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:144) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at com.sakeesoft.android.MainActivity.onClick(MainActivity.java:104) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at android.view.View.performClick(View.java:3511) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at android.view.View$PerformClick.run(View.java:14105) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at android.os.Handler.handleCallback(Handler.java:605) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at android.os.Handler.dispatchMessage(Handler.java:92) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at android.os.Looper.loop(Looper.java:137) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at android.app.ActivityThread.main(ActivityThread.java:4424) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at java.lang.reflect.Method.invokeNative(Native Method) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at java.lang.reflect.Method.invoke(Method.java:511) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 
06-07 18:23:45.650: E/AndroidRuntime(2387): at dalvik.system.NativeStart.main(Native Method) 

请帮助我知道用什么样的HTTPClient拨错。 谢谢..

Answer 1

应用程序尝试在其主线程上执行联网操作时引发的异常。

使用asynctask或Thread类进行网络调用。