Question

在我的Android应用程序中，我想从MYSQL中获取数据

java代码是：

    public class My_Task extends Activity {

        EditText attend_by_txtbx, cus_name_txtbx, contact_no_txtbx, ticket_no_txtbx, task_detail_txtbx;
        Button btnSave;
        TextView cus_name_txt, contact_no_txt, ticket_no_txt, task_detail_txt;
        private static String attend_by;
         String Save = "interval.txt";


        Handler h2 = new Handler();
        Runnable run = new Runnable() {

            @Override
            public void run() {
                EditText cus_name_txtbx = (EditText) findViewById(R.id.cus_name_txtbx);
                ((EditText) cus_name_txtbx).setText(" " + String.valueOf(cus_name_txtbx));
                EditText contact_no_txtbx = (EditText) findViewById(R.id.contact_no_txtbx);
                ((EditText) contact_no_txtbx).setText(" " + String.valueOf(contact_no_txtbx));
                EditText ticket_no_txtbx = (EditText) findViewById(R.id.ticket_no_txtbx);
                ((EditText) ticket_no_txtbx).setText(" " + String.valueOf(ticket_no_txtbx));
                EditText task_detail_txtbx = (EditText) findViewById(R.id.task_detail_txtbx);
                ((EditText) task_detail_txtbx).setText(" " + String.valueOf(task_detail_txtbx));
                long delaytime = (RestoreRecord0() * 1000);
                h2.postDelayed(this, delaytime);
                String response = CallWebService(cus_name_txtbx, contact_no_txtbx, ticket_no_txtbx, task_detail_txtbx);

            }

            private String CallWebService(EditText cus_name_txtbx,
                    EditText contact_no_txtbx, EditText ticket_no_txtbx,
                    EditText task_detail_txtbx) {
                // TODO Auto-generated method stub
                return null;
            }
        };

        public int RestoreRecord0() {
            try {

                File dir = getFilesDir();
                File file = new File(dir, Save);
                if (!file.exists()) {
                                    }

                FileInputStream fileIS = new FileInputStream(file);
                BufferedReader buf = new BufferedReader(new InputStreamReader(
                        fileIS));
                String readString = new String();
                String data = "";
                // just reading each line and pass it on the debugger

                while ((readString = buf.readLine()) != null) {
                    data += readString;
                }

            }

            catch (Exception ex) {
                ex.getMessage();
            }
            return 0;
        }


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.my_task);

        cus_name_txt = (TextView) findViewById(R.id.cus_name_txt);
        cus_name_txtbx = (EditText) findViewById(R.id.cus_name_txtbx);
        cus_name_txtbx.setText("John");

        contact_no_txt = (TextView)findViewById(R.id.contact_no_txt);  
        contact_no_txtbx = (EditText) findViewById(R.id.contact_no_txtbx);
        contact_no_txtbx.setText("03331231231");

        ticket_no_txt = (TextView)findViewById(R.id.ticket_no_txt);
        ticket_no_txtbx = (EditText) findViewById(R.id.ticket_no_txtbx);
        ticket_no_txtbx.setText("1");


        task_detail_txt = (TextView)findViewById(R.id.task_detail_txt);
        task_detail_txtbx = (EditText) findViewById(R.id.task_detail_txtbx);
        task_detail_txtbx.setText("Training");

        attend_by_txtbx = (EditText)findViewById(R.id.attend_by_txtbx);
        attend_by_txtbx.setText(My_Task.attend_by);

        Spinner severity = (Spinner) findViewById(R.id.severity_spinner);
        // Create an ArrayAdapter using the string array and a default spinner layout
        ArrayAdapter<CharSequence> adapter3 = ArrayAdapter.createFromResource(this,
                R.array.Severity_array, android.R.layout.simple_dropdown_item_1line);
        // Specify the layout to use when the list of choices appears
        adapter3.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        // Apply the adapter to the spinner
        severity.setAdapter(adapter3);


        // save button
        btnSave = (Button) findViewById(R.id.btnSave);
        btnSave.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view) {
                Onclick_click1(btnSave);

            }
        });   

        long delaytime = (RestoreRecord0() * 1000);
        h2.postDelayed(run, delaytime);


        }

    public void onItemSelected(AdapterView<?> parent, View view, 
            int pos, long id) {
        // An item was selected. You can retrieve the selected item using
        // parent.getItemAtPosition(pos)
    }

    public void onNothingSelected(AdapterView<?> parent) {
        // Another interface callback

    } 

    public void Onclick_click1(final Button btnSave)
    {

         final AlertDialog.Builder alert = new AlertDialog.Builder(
                    My_Task.this);

         alert.setTitle("Alert...!");   
         alert.setMessage("Do you want to Save or Cancel");
         alert.setPositiveButton("Save",
                    new DialogInterface.OnClickListener() {

                        @Override
                        public void onClick(DialogInterface arg0, int arg1) {
                            // Perform action on click

                            EditText attend_by_txtbx = (EditText) findViewById(R.id.attend_by_txtbx);
                            if(attend_by_txtbx.getText().toString().trim().length() < 1)
                            {
                        Toast.makeText(getBaseContext(),
                                        "Please enter your Name",
                                        Toast.LENGTH_LONG).show();
                            btnSave.performClick();
                            return;
                        }

                            Toast.makeText(getBaseContext(),
                                    "Successfully Saved..!",
                                    Toast.LENGTH_LONG).show();

                        }
                                    });

            alert.setNegativeButton("Cancel",
                    new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog,
                                int whichButton) {
                            dialog.cancel();
                        }
                    });

            alert.show();

    }    


    public String CallWebService(String cid, String cus_name, String contact_number, String ticket_no, String task_detail) {
        String response = new String();
        try {
            String url = "http://192.168.0.29/evisiting_records/read_mytask.php?cus_name="+cus_name+"&contact_number="+contact_number+"&ticket_no="+ticket_no+"&task_detail="+task_detail;
            HttpClient client = new DefaultHttpClient();
            HttpPost req = new HttpPost();
            HttpGet request = new HttpGet();
            URI webservice = new URI(url);
            request.setURI(webservice);
            req.setURI(webservice);
            HttpResponse httpResponse = client.execute(request);
            HttpEntity responseEntity = httpResponse.getEntity();
            if (responseEntity != null) {
                response = EntityUtils.toString(responseEntity);
            }
            HttpResponse httpResponse1 = client.execute(req);
            HttpEntity responseEntity1 = httpResponse1.getEntity();
            if (responseEntity1 != null) {
                response = EntityUtils.toString(responseEntity1);
            }
        }

        catch (Exception e1) 
        {
            e1.printStackTrace();
        }

        return response;
    }      
   }

我的PHP代码是：

<?php
// read_My_Task.php

/*
 * Following code will get single task details
 * A task_detail is identified by task id (cid)
 */
 // array for JSON response
$response = array();

// include db connect class
require_once __DIR__ . '/db_connect.php';

// connecting to db
$db = new DB_CONNECT();

// check for post data
if (isset($_GET["cid"])) {
    $cid = $_GET['cid'];

    // get a task from my-task table
    $result = mysql_query("SELECT *FROM my_task WHERE cid = $cid");

    if (!empty($result)) {
        // check for empty result
        if (mysql_num_rows($result) > 0) {

            $result = mysql_fetch_array($result);

            $my_task = array();
            $my_task["cid"] = $result["cid"];
            $my_task["cus_name"] = $result["cus_name"];
            $my_task["contact_number"] = $result["contact_number"];
            $my_task["ticket_no"] = $result["ticket_no"];
            $my_task["task_detail"] = $result["task_detail"];

            // success
            $response["success"] = 1;

            // user node
            $response["my_task"] = array();

            array_push($response["my_task"], $my_task);
            // echoing JSON response
            echo json_encode($response);         
             }            

    else {
            // no task found
          $response["success"] = 0;
        $response["message"] = "No task found";

            // echo no users JSON
      echo json_encode($response);
 }
 } else {
        // no task found
   $response["success"] = 0;
   $response["message"] = "No task found";

        // echo no users JSON
        echo json_encode($response);
    }
} else {
    // required field is missing
    $response["success"] = 0;
    $response["message"] = "Required field(s) is missing";

    // echoing JSON response
    echo json_encode($response);
}

?>

我退出的是:(我希望价值不是这个:(

enter image description here

请指导我如何获得customer_name，contact_no，ticket_no，task_detail？我在调用Web服务时出错了吗？

Web服务问题

0 个答案: