关于POST间接使用php操作服务器数据库的一个问题！

正常情况下点击按钮会在下面文本显示数据库数据，但我调试时，点击按钮就立马闪退。

下面是我的客户端的代码：

public class MainActivity extends Activity {

    JSONArray jArray;

    String result = null;

    InputStream is = null;

    StringBuilder sb = null;

 

    @Override

    public void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       setContentView(R.layout.activity_main);

       Button b1 = (Button) findViewById(R.id.button1);
       
       

       b1.setOnClickListener(new Button.OnClickListener() {

           @Override

           public void onClick(View v) {

              // TODO Auto-generated method stub

              EditText tv = (EditText) findViewById(R.id.editView);

              ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();

              // http get

              try {

                  HttpClient httpclient = new DefaultHttpClient();

                  HttpPost httpPost = new HttpPost(

                         "http://10.0.3.2/AndPHP.php");

                  HttpResponse response = httpclient.execute(httpPost);

                  HttpEntity entity = response.getEntity();

                  is = entity.getContent();

              } catch (Exception e) {

                  Log.e("log_tag", "Error in http connection" + e.toString());

              }

              // convert response to string

              try {
            	  

                  BufferedReader reader = new BufferedReader(

                         new InputStreamReader(is, "iso-8859-1"), 8);

                  sb = new StringBuilder();

                  sb.append(reader.readLine() + "\n");

 

                  String line = "0";

                  while ((line = reader.readLine()) != null) {

                     sb.append(line + "\n");

                  }

                  is.close();

                  result =sb.toString();
                  

              } catch (Exception e) {

                  Log.e("log_tag", "Error converting result " + e.toString());

              }
              
             

              // paring data

              int ct_id;

              String ct_name;

              try {

                  jArray = new JSONArray(result);

                  JSONObject json_data = null;

                  for (int i = 0; i < jArray.length(); i++) {

                     json_data = jArray.getJSONObject(i);

                     ct_id = json_data.getInt("id");

                     ct_name = json_data.getString("name");
                     
                     tv.setText(ct_id);

                     tv.append(ct_name + " \n");

                  }

              } catch (JSONException e1) {

                  Toast.makeText(getBaseContext(), "No City Found" ,Toast.LENGTH_LONG).show();

              } catch (ParseException e1) {

                  e1.printStackTrace();

              }

           }

       });

    }

}

一下是Eclipse的日志：
05-04 05:26:40.845: W/ResourceType(1113): No package identifier when getting value for resource number 0x00000001
05-04 05:26:40.845: D/AndroidRuntime(1113): Shutting down VM
05-04 05:26:40.845: W/dalvikvm(1113): threadid=1: thread exiting with uncaught exception (group=0xa6194908)
05-04 05:26:40.845: E/AndroidRuntime(1113): FATAL EXCEPTION: main
05-04 05:26:40.845: E/AndroidRuntime(1113): android.content.res.Resources$NotFoundException: String resource ID #0x1
05-04 05:26:40.845: E/AndroidRuntime(1113):  at android.content.res.Resources.getText(Resources.java:230)
05-04 05:26:40.845: E/AndroidRuntime(1113):  at android.widget.TextView.setText(TextView.java:3769)
05-04 05:26:40.845: E/AndroidRuntime(1113):  at com.example.test.MainActivity$1.onClick(MainActivity.java:142)
05-04 05:26:40.845: E/AndroidRuntime(1113):  at android.view.View.performClick(View.java:4204)
05-04 05:26:40.845: E/AndroidRuntime(1113):  at android.view.View$PerformClick.run(View.java:17355)
05-04 05:26:40.845: E/AndroidRuntime(1113):  at android.os.Handler.handleCallback(Handler.java:725)
05-04 05:26:40.845: E/AndroidRuntime(1113):  at android.os.Handler.dispatchMessage(Handler.java:92)
05-04 05:26:40.845: E/AndroidRuntime(1113):  at android.os.Looper.loop(Looper.java:137)
05-04 05:26:40.845: E/AndroidRuntime(1113):  at android.app.ActivityThread.main(ActivityThread.java:5041)
05-04 05:26:40.845: E/AndroidRuntime(1113):  at java.lang.reflect.Method.invokeNative(Native Method)
05-04 05:26:40.845: E/AndroidRuntime(1113):  at java.lang.reflect.Method.invoke(Method.java:511)
05-04 05:26:40.845: E/AndroidRuntime(1113):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
05-04 05:26:40.845: E/AndroidRuntime(1113):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
05-04 05:26:40.845: E/AndroidRuntime(1113):  at dalvik.system.NativeStart.main(Native Method)