android

Question

Benim app MySQL veritabanından EDITTEXT içinde veri alma

1. Etkinlik kodu, php kodu ve düzen kodu ekli olan bir düğmeye tıklayarak ilgili metinleri düzenlemek için de MySql veri alan bir An Aktivite vardır. derleme zamanında bir hata yok ve LogCat bazı hata .. iletişim açılıyor yoktur

, saniye çalışmaya devam ve sonra görevden ancak metin düzenleme alanları MySQL dan verileri tarafından doldurulur değil .

2. MySQL tablonun adı, ilgili sütun (Service_Provider_ID, İsim, Adres, Posta kodu bölge, PHONE_NUMBER, DOB, Aadhar_Number, Fiyat, Uzmanlık, Durumu) içeren services_provider_details1 olduğunu. İşte

benim kodudur

public class Update extends Activity { 


EditText et_spid,et_fullname,et_address,et_sid,et_aadhar,et_dob,et_phone,et_pincode,et_price,et_status,et_spl ; 
Spinner spinner; 
Button update_button, go; 
String spid; 

InputStream is=null; 
String result=null; 
String line=null ; 
String myJSON; 
JSONArray peoples = null; 



    public static final String TAG_SUCCESS="success"; 
    public static final String TAG_PROVIDERS = "providers"; 
    public static final String TAG_SPID = "spid"; 
    public static final String TAG_NAME = "Name"; 
    public static final String TAG_ADDRESS = "Address"; 
    public static final String TAG_PINCODE = "Pincode"; 
    public static final String TAG_PHONENUMBER = "Phone_Number"; 
    public static final String TAG_AADHARNUMBER = "Aadhar_Number"; 
    public static final String TAG_PRICE = "price"; 
    public static final String TAG_SPL = "spl"; 
    public static final String TAG_STATUS = "status"; 



    @Override 
    protected void onCreate(Bundle savedInstanceState){ 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.update); 
      et_spid = (EditText) findViewById(R.id.edittext_spid_insert); 
      et_fullname = (EditText) findViewById(R.id.edittext_name_insert); 
      et_address = (EditText) findViewById(R.id.edittext_address_insert); 
      et_pincode = (EditText) findViewById(R.id.edittext_pin_insert); 
      et_phone = (EditText) findViewById(R.id.edittext_phone_insert); 
      et_aadhar = (EditText) findViewById(R.id.edittext_aadhar_insert); 
      spinner = (Spinner) findViewById(R.id.spinner1); 

     et_price =(EditText) findViewById(R.id.edittext_sid_price); 
     et_status = (EditText) findViewById(R.id.edittext_sid_status); 
     et_spl =(EditText) findViewById(R.id.edittext_sid_speacialisation); 
     update_button = (Button) findViewById(R.id.button_update); 
     go = (Button)findViewById(R.id.button_go); 



     go.setOnClickListener(new OnClickListener() { 


      @Override 
      public void onClick(View v) { 
       // TODO Auto-generated method stub 

       spid=et_spid.getText().toString(); 
       new go().execute(); 
      } 
     }); 
     } 

    class go extends AsyncTask<String, String, String> 
    { 
     ProgressDialog progress; 
     String Url="http://192.168.2.7/myapp/update.php"; 
     ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); 
     String res = ""; 
     @Override 
     protected void onPreExecute() { 
      // TODO Auto-generated method stub 
      super.onPreExecute(); 

      progress = ProgressDialog.show(Update.this, "Loading Details", 
        "Please wait..", false); 
     } 

     @Override 
     protected String doInBackground(String... arg0) { 
      // TODO Auto-generated method stub 





     try { 

      DefaultHttpClient httpclient = new DefaultHttpClient(); 
      HttpPost httppost = new HttpPost(Url); 
      nameValuePairs = new ArrayList<NameValuePair>(1); 
      nameValuePairs.add(new BasicNameValuePair("spid",spid)); 
      httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 
      HttpResponse response = httpclient.execute(httppost); 
      HttpEntity entity = response.getEntity(); 
      is = entity.getContent(); 

      Log.e("pass 1", "connection success "); 
    } 
     catch(Exception e) 
    { 
      Log.e("Fail 1", e.toString()); 
      Toast.makeText(getApplicationContext(), "Invalid IP Address", 
      Toast.LENGTH_LONG).show(); 
    }  
     try{ 

      BufferedReader reader = new BufferedReader 
       (new InputStreamReader(is,"utf-8"),8); 
       StringBuilder sb = new StringBuilder(); 
       while ((line = reader.readLine()) != null) 
     { 
        sb.append(line + "\n"); 
       } 
       is.close(); 
       result = sb.toString(); 
      Log.e("pass 2", "connection success "); 
    } 
     catch(Exception e) 
     { 
     Log.e("Fail 2", e.toString()); 
    }  


     return res; 

    } 
     protected void onPostExecute(String response) { 
      myJSON = response ; 
      try 
      { 
       JSONObject jsonObj = new JSONObject(myJSON); 
       peoples = jsonObj.getJSONArray("result"); 

       for (int i = 0; i < peoples.length(); i++) { 
        JSONObject c = peoples.getJSONObject(i); 


      String Name=(c.getString("Name")); 
       String Address=(c.getString("Address")); 
       String Pincode=(c.getString("Pincode")); 
       String Phone_Number=(c.getString("Phone_Number")); 
       String Aadhar_Number=(c.getString("Aadhar_Number")); 
       String price=(c.getString("price")); 
       String spl=(c.getString("spl")); 
       String status=(c.getString("status")); 


       et_fullname.setText(Name); 
       et_address.setText(Address); 
       et_pincode.setText(Pincode); 
       et_phone.setText(Phone_Number); 
       et_aadhar.setText(Aadhar_Number); 
       et_price.setText(price); 
       et_spl.setText(spl); 
       et_status.setText(status); 




      } 
      } 
      catch(Exception e) 
      { 

       e.printStackTrace(); 
      } 
progress.dismiss(); 
     } 
    } 


} 

3. PHP kodu

çalıştırmak programın

mysql_connect("localhost","root",""); 
mysql_select_db("myapp"); 



    $spid = $_POST['spid']; 


    $sql="select * from services_provider_details1 WHERE Service_Provider_ID='$spid' " ; 
    $r=mysql_query($sql); 
    $result = array(); 
    while($row=mysql_fetch_array($r)) 
    { 
     array_push($result, 
array('Name'=>$row[1],'Address'=>$row[2],'Pincode'=>$row[3],'Phone_Number'=>$row[4],'Aadhar_Number'=>$row[6],'price'=>$row[8],'spl'=>$row[9],'status'=>$row[10])); 
    } 

    echo json_encode(array("result"=>$result)); 

mysql_close(); 

?> 

Logcat

04-10 13:24:57.105: W/Trace(1859): Unexpected value from nativeGetEnabledTags: 0 
04-10 13:24:57.145: W/Trace(1859): Unexpected value from nativeGetEnabledTags: 0 
04-10 13:24:57.145: W/Trace(1859): Unexpected value from nativeGetEnabledTags: 0 
04-10 13:24:57.225: W/System.err(1859): org.json.JSONException: End of input at character 0 of 
04-10 13:24:57.296: W/System.err(1859):  at org.json.JSONTokener.syntaxError(JSONTokener.java:450) 
04-10 13:24:57.296: W/System.err(1859):  at org.json.JSONTokener.nextValue(JSONTokener.java:97) 
04-10 13:24:57.306: W/System.err(1859):  at org.json.JSONObject.<init>(JSONObject.java:154) 
04-10 13:24:57.325: W/System.err(1859):  at org.json.JSONObject.<init>(JSONObject.java:171) 
04-10 13:24:57.325: W/System.err(1859):  at com.example.homerun.Update$go.onPostExecute(Update.java:197) 
04-10 13:24:57.345: W/System.err(1859):  at com.example.homerun.Update$go.onPostExecute(Update.java:1) 
04-10 13:24:57.357: W/System.err(1859):  at android.os.AsyncTask.finish(AsyncTask.java:631) 
04-10 13:24:57.376: W/System.err(1859):  at android.os.AsyncTask.access$600(AsyncTask.java:177) 
04-10 13:24:57.376: W/System.err(1859):  at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644) 
04-10 13:24:57.396: W/System.err(1859):  at android.os.Handler.dispatchMessage(Handler.java:99) 
04-10 13:24:57.396: W/System.err(1859):  at android.os.Looper.loop(Looper.java:137) 
04-10 13:24:57.406: W/System.err(1859):  at android.app.ActivityThread.main(ActivityThread.java:5039) 
04-10 13:24:57.426: W/System.err(1859):  at java.lang.reflect.Method.invokeNative(Native Method) 
04-10 13:24:57.436: W/System.err(1859):  at java.lang.reflect.Method.invoke(Method.java:511) 
04-10 13:24:57.436: W/System.err(1859):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
04-10 13:24:57.465: W/System.err(1859):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
04-10 13:24:57.465: W/System.err(1859):  at dalvik.system.NativeStart.main(Native Method) 
04-10 13:24:57.475: I/Choreographer(1859): Skipped 113 frames! The application may be doing too much work on its main thread. 
04-10 13:24:58.285: W/Trace(1859): Unexpected value from nativeGetEnabledTags: 0 
04-10 13:24:58.285: W/Trace(1859): Unexpected value from nativeGetEnabledTags: 0 

Lütfen ayrıca XML Dosyası Gerekiyor mu?

Answer 1

temel sorun sunucu tarafı php kodu gibi görünüyor, daha spesifik olarak bu bölümü:

$spid=$_REQUEST['spid']; 
$name=$_REQUEST['name']; 
$address=$_REQUEST['address']; 
$pin=$_REQUEST['pin']; 
$phone=$_REQUEST['phone']; 
$aadhar=$_REQUEST['aadhaar']; 
$price=$_REQUEST['price']; 
$spl=$_REQUEST['spl']; 
$status=$_REQUEST['status']; 

Dizideki $_REQUEST anahtarlar mevcut olup olmadığını kontrol etmiyoruz ve anahtar bunu bulunmadığı zaman bir uyarıyı tetikler. Beklenen davranış budur. Varsa onu anahtar var olup olmadığını kontrol etmek ve tek erişim böylece

düzeltmek için, her satırı güncellemek gerekir:

sen beri, kullanmadığınız PHP 7 (In

$spid = isset($_REQUEST['spid']) ? $_REQUEST['spid'] : null; 

) mysql_ işlevleri kullanarak, daha kısa sözdiziminde aynı şeyi mümkün olacaktır: Eğer sorgunun WHERE yan tümcesinde $spid kullandığından

$spid = $_REQUEST['spid'] ?? null; 

, söz konusu alan mevcut olduğundan emin olun isteyebilirsiniz. Bu da açık bir çek gerektirir.