Question

我正在研究一个项目..当我在2.2版本中运行我的项目时，我的工作方式很好....但是当我在我的代码中使用AsyncTask并在4.0版本上运行avd时它无法正常工作。 ..我在logcat中发现了以下错误

解析数据时出错java.net.SocketException：Socket closed

解析数据时出错org.json.JSONException：客户没有值我可以在我的代码中正确实现AsyncTask吗？请检查我的代码......这会出现什么问题....

         public class Login extends Activity {
 String success, cus_id, cus_name;
      SessionManager session;

     @Override
      protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.login);

Button submit = (Button) findViewById(R.id.loginbutton);

submit.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        // TODO Auto-generated method stub
        com.amplio.MyCustomEditText et = (com.amplio.MyCustomEditText) findViewById(R.id.etmob);
        String mobileno = et.getText().toString();
        if (mobileno.length() > 0) {
            final ArrayList<NameValuePair> postParameters = new ArrayList<NameValuePair>();
            postParameters.add(new BasicNameValuePair("cus_mob",
                    mobileno));

            Thread thread = new Thread() {
                @Override
                public void run() {
                    try {
                        String response = null;
                        response = LoginHttpClient
                                .executeHttpPost(
                                        "http://10.0.2.2/android/mobile_no.php",
                                        postParameters);
                        System.out.println(response);
                        JSONObject json = new JSONObject(response);
                        JSONArray jArray = json
                                .getJSONArray("customer");
                        for (int i = 0; i < jArray.length(); i++) {
                            JSONObject json_data = jArray
                                    .getJSONObject(i);
                            success = json_data.getString("success");
                            cus_id = json_data.getString("cus_id");
                            cus_name = json_data.getString("cus_name");
                        }
                        if (success.equals("1")) {
                            session = new SessionManager(
                                    getApplicationContext());
                            session.createLoginSessionRemMe(cus_id,
                                    cus_name);
                            Intent iv = new Intent(
                                    getApplicationContext(),
                                    Verify.class);
                            startActivity(iv);
                        } else {
                            // not valid email id or pass
                            Toast.makeText(getApplicationContext(),
                                    "Incorrect Mobile No",
                                    Toast.LENGTH_LONG).show();
                        }
                    } catch (Exception e) {
                    }
                }
            };
            thread.start();

        }

        else {
            // display message if text fields are empty
            Toast.makeText(getBaseContext(), "Mobile no is required",
                    Toast.LENGTH_SHORT).show();
        }
    }
});
       }}

从服务器获取数据时，AsyncTask不起作用

0 个答案: