android HTTP post发送数据的问题

i want to pass data from android to web through http post.i have try but when i click on send button it does not show on the web help me to solve my problem. here is the main activity code.

public class HttpPostExample extends Activity {

    TextView content;
    EditText fname,email,login,pass;
    String Name,Email,Login,Pass; 

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

        content = (TextView)findViewById(R.id.content);
        fname   =(EditText)findViewById(R.id.name);
        email   =(EditText)findViewById(R.id.email);
        login   =(EditText)findViewById(R.id.loginname);
        pass    =(EditText)findViewById(R.id.password);


        Button saveme=(Button)findViewById(R.id.save);
        saveme.setOnClickListener(new Button.OnClickListener(){
            public void onClick(View v)
            {
                try{

                   GetText();
                 }
                catch(Exception ex)
                 {
                    content.setText("url exeption!");    
                 }
            }
        });  
    }


    public void GetText() throws UnsupportedEncodingException
    {

        Name    = fname.getText().toString();
        Email   = email.getText().toString();
        Login   = login.getText().toString();
        Pass    = pass.getText().toString();



          String data = URLEncoder.encode("name", "UTF-8") + "=" + URLEncoder.encode(Name, "UTF-8"); 
          data += "&" + URLEncoder.encode("email", "UTF-8") + "=" + URLEncoder.encode(Email, "UTF-8"); 
          data += "&" + URLEncoder.encode("user", "UTF-8") + "=" + URLEncoder.encode(Login, "UTF-8");
          data += "&" + URLEncoder.encode("pass", "UTF-8") + "=" + URLEncoder.encode(Pass, "UTF-8");

          String text = "";
          BufferedReader reader=null;
          // Send data 
        try
        { 

            URL url = new URL("http://androidexample.com/localhost/web/Httppost.php");

          URLConnection conn = url.openConnection(); 
          conn.setDoOutput(true); 
          OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream()); 
          wr.write(data); 
          wr.flush(); 
       // Get the response 


        reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        StringBuilder sb = new StringBuilder();
        String line = null;


            while((line = reader.readLine()) != null)
            {
                sb.append(line + "
");
            }
            text = sb.toString();
        }
        catch(Exception ex)
        {

        }
        finally
        {
            try
            {

                reader.close();
            }
            catch(Exception ex) {}
        }

        content.setText(text);

    }

}

here main xml code.

    *<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="wrap_content"   
    android:layout_height="wrap_content"
        android:stretchColumns="*" android:background="#ffffff">


     <TableRow android:background="#758AA7" android:layout_margin="2dip">
           <TextView android:id="@+id/output"
            android:layout_height="wrap_content"
            android:padding="1px"
            android:text="@string/default_output" android:layout_width="wrap_content" />
           <TextView android:id="@+id/content"
            android:layout_height="wrap_content"
            android:padding="2px"
            android:text="@string/default_content" android:layout_width="fill_parent" />
     </TableRow>
     <TableRow android:background="#758AA7" android:layout_margin="2dip">

        <Button android:text="Save On Web"
        android:id="@+id/save"
        android:layout_width="wrap_content" 
        android:layout_gravity="center" 
         />
        </TableRow>

     <TableRow android:background="#ffffff" android:layout_margin="2dip">

        <TextView style="@style/CodeFont"
         android:text="@string/Name"   android:layout_width="30px" android:layout_gravity="left"/>
        <EditText android:id="@+id/name" 
        android:layout_width="wrap_content"
             android:gravity="left" android:layout_gravity="left"  android:width="210px"/>
    </TableRow>
     <TableRow android:background="#ffffff" android:layout_margin="2dip">

        <TextView style="@style/CodeFont"
         android:text="@string/Email"   android:layout_gravity="left"/>
        <EditText android:id="@+id/email" 
         android:layout_width="wrap_content" android:layout_gravity="left" android:width="210px"/>
    </TableRow>
     <TableRow android:background="#ffffff" android:layout_margin="2dip">

        <TextView style="@style/CodeFont"
         android:text="@string/LoginName"   android:layout_gravity="left"/>
        <EditText android:id="@+id/loginname" 
         android:layout_width="wrap_content" android:layout_gravity="left" android:width="210px"/>
    </TableRow>
     <TableRow android:background="#ffffff" android:layout_margin="2dip">

        <TextView style="@style/CodeFont"
         android:text="@string/Password"   android:layout_gravity="left"/>
        <EditText android:id="@+id/password" 
         android:layout_width="wrap_content" android:layout_gravity="left" android:width="210px"/>
    </TableRow>
</TableLayout>*   

this is my php script Httppost.php

  <?php 

       $name   = urldecode($_POST['name']);
       $user   = urldecode($_POST['user']);
       $email  = urldecode($_POST['email']);
       $pass   = urldecode($_POST['pass']);

       print " ==== POST DATA =====
       Name  : $name
       Email : $email
       User  : $user
       Pass  : $pass"; 

 ?>

When i click on save on web it does not show on the web.

Change httpurlconnection code to run in background thread to solve your issue. If you execute in MAinthread you get networkonMAinThreadException in honeycomb onwards