無效的IP地址Android插入到MySQL

try 
    { 
     HttpClient httpclient = new DefaultHttpClient(); 
     HttpPost httppost = new HttpPost("http://10.0.2.2/insert.php"); 
     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 
    { 
     HttpClient httpclient = new DefaultHttpClient(); 
     HttpPost httppost = new HttpPost("http://10.0.2.2/insert.php"); 
     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(); 
    }

我想從我的Android應用程序插入一些值到MySQL數據庫，它顯示錯誤「無效的IP地址」請幫助。提前致謝。無效的IP地址Android插入到MySQL

logcat的錯誤 12月9日至21日：57：12.084 912-912/com.srg.ibc.appointmentapplication E /失敗1：android.os.NetworkOnMainThreadException 12月9日至21日：57：12.114 912-912/COM .srg.ibc.appointmentapplication E/Fail 2：java.lang.NullPointerException：lock == null 09-21 12：57：12.114 912-912/com.srg.ibc.appointmentapplication E/Fail 3：java.lang。空指針異常

來源

2014-09-21 Jet Ron Glomar

您正試圖在主線程上執行聯網操作。見How to fix android.os.NetworkOnMainThreadException?

來源

2014-09-21 17:11:06 ToasteR

我認爲它沒有相應的答案在我的問題。 – 2014-09-22 04:49:59

是的。 Logcat error 09-21 12：57：12.084 912-912/com.srg.ibc.appointmentapplication E/Fail 1：android.os.NetworkOnMainThreadException'。信息無效的IP地址來自你的'Toast.makeText（getApplicationContext（），「無效的IP地址」， Toast.LENGTH_LONG）.show（）;'問題是你捕獲所有異常，所以你不得到一個適當的錯誤信息。 – ToasteR 2014-09-22 05:43:01

我怎麼能得到一個正確的消息？ ithink你發送的解決方案不適合我的代碼。 – 2014-09-22 06:56:01

@SuppressLint("NewApi") 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build(); 
    StrictMode.setThreadPolicy(policy); 
    setContentView(R.layout.login);

這段代碼添加到您的代碼那麼它會工作

來源

2014-12-17 17:28:57

無效的IP地址Android插入到MySQL

回答

相關問題