不能與Android在wampserver本地主機使用模擬器

-1

我的數據庫名字爲mobildb連接mysql，它包含一個表androidlogin。它包含了ID整數
自動增量主鍵，用戶文本，密碼文本作爲其field.my表包含一些登錄
detail.iwant檢查輸入的Android用戶名和密碼與table.my中的數據 php文件名是login.php保存在wamp/www/.I不知道給的http鏈接。我測試了這個代碼用我的腿ipaddress，127.0.0.1,10.0.2.2,12.34.56.78:80，0.0.0.0:80
,127.0.0.1：80,10.0.2.2：80。請問我可以嗎？我的PHP文件是不能與Android在wampserver本地主機使用模擬器

 <?php 
    $dbhost="localhost"; 
    $db="mobiledb"; 
    $pass=""; 
    $dbuser="root"; 
    $con=mysqli_connect("localhost","root","","mobiledb") or die("connection error"); 
    //mysqli_select_db($con,"mobiledb") or die("database not exists"); 
    $username=$_POST["username"]; 
    $password=$_POST["password"]; 
    $query=mysqli_query($con,"select * from androidlogin where user='$username' AND 
                password='$password'"); 
    $num=mysqli_num_rows($query); 
    if($num==1){ 
    while($list=mysqli_fetch_array($query)){ 
    $output=$list;} 
    echo json_encode($output); 
     } 
    mysqli_close($con); 
    ?>

我的活動是隻包含2 EditText上輸入用戶名和password.a按鈕登錄

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:paddingLeft="@dimen/activity_horizontal_margin" 
android:paddingRight="@dimen/activity_horizontal_margin" 
android:paddingTop="@dimen/activity_vertical_margin" 
android:paddingBottom="@dimen/activity_vertical_margin" 
tools:context=".MyActivity"> 


<EditText 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:id="@+id/txtuser" 
    android:layout_alignParentTop="true" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentStart="true" /> 

<EditText 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:inputType="textPassword" 
    android:ems="10" 
    android:id="@+id/pswd" 
    android:layout_below="@+id/txtuser" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentStart="true" /> 

<Button 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:text="Login" 
    android:id="@+id/btn" 
    android:layout_below="@id/pswd" 
    android:layout_centerHorizontal="true" 
    android:onClick="btnClick" /> 
</RelativeLayout>

我唯一的類文件是

package com.example.iyas.loginapp; 

    import android.app.Activity; 
    import android.os.Bundle; 
import android.view.Menu; 
    import android.view.MenuItem; 
import android.view.View; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.Toast; 

import org.apache.http.HttpEntity; 
import org.apache.http.HttpResponse; 
import org.apache.http.client.HttpClient; 
import org.apache.http.client.entity.UrlEncodedFormEntity; 
import org.apache.http.client.methods.HttpPost; 
import org.apache.http.impl.client.DefaultHttpClient; 
import org.apache.http.message.BasicNameValuePair; 
import org.json.JSONException; 
import org.json.JSONObject; 

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStream; 
import java.io.InputStreamReader; 
import java.util.ArrayList; 


    public class MyActivity extends Activity { 
String username,password; 
EditText user; 
EditText pass; 
Button btn; 
HttpClient httpclient; 
HttpPost httppost; 
HttpResponse httpresponse; 
HttpEntity entity; 


ArrayList namevaluepairs; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_my); 
    initialise(); 
} 
private void initialise() 
{ 
    user=(EditText)findViewById(R.id.txtuser); 
    pass=(EditText)findViewById(R.id.pswd); 
    btn=(Button)findViewById(R.id.btn); 

} 
private static String convertStreamToString(InputStream is){ 
BufferedReader reader= new BufferedReader(new InputStreamReader(is)); 
StringBuilder sb=new StringBuilder(); 
    String line=null; 
try { 
    while ((line = reader.readLine()) != null) { 
     sb.append(line + "\n"); 
    } 
} catch(IOException e){ 
     e.printStackTrace(); 
    }finally{ 
     try{ 
      is.close(); 
      }catch(IOException e){ 
      e.printStackTrace();   } 
    }return sb.toString(); 

    } 

public void btnClick(View v) 
    { 
httpclient=new DefaultHttpClient(); 
httppost=new HttpPost("http://10.0.2.2:80/login.php"); 
username=user.getText().toString(); 
password=pass.getText().toString(); 
Toast.makeText(getApplicationContext(),"before try",Toast.LENGTH_SHORT).show(); 
try{ 
    namevaluepairs=new ArrayList(); 
    Toast.makeText(getApplicationContext(),"after try",Toast.LENGTH_SHORT).show(); 
    namevaluepairs.add(new BasicNameValuePair("username",username)); 
    namevaluepairs.add(new BasicNameValuePair("password",password)); 
Toast.makeText(getApplicationContext(),"after name",Toast.LENGTH_SHORT).show(); 
      httppost.setEntity(new UrlEncodedFormEntity(namevaluepairs)); 
    httpresponse=httpclient.execute(httppost); 
    if(httpresponse.getStatusLine().getStatusCode()==200){ 
     entity=httpresponse.getEntity(); 
     if(entity!=null){ 
      InputStream instream=entity.getContent(); 
      JSONObject jsonresponse=new JSONObject(convertStreamToString(instream)); 
      String retUser= jsonresponse.getString("user"); 
      String retPass=jsonresponse.getString("password"); 
      if(username.equals(retUser)&&password.equals(retPass)) { 
       Toast.makeText(getApplicationContext(), "success", Toast.LENGTH_SHORT).show(); 
      }else{ 
    Toast.makeText(getApplicationContext(),"invalid login",Toast.LENGTH_SHORT).show();} 
     } 
    } 
    }catch(IOException e) { 
    e.printStackTrace(); 


    Toast.makeText(getApplicationContext(),"connection error",Toast.LENGTH_SHORT).show();} 
    catch(JSONException e) 
    { e.printStackTrace(); 

    } 
    } 

}

清單文件：

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
package="com.example.iyas.loginapp" > 

<application 
    android:allowBackup="true" 
    android:icon="@drawable/ic_launcher" 
    android:label="@string/app_name" 
    android:theme="@style/AppTheme" > 
    <activity 
     android:name=".MyActivity" 
     android:label="@string/app_name" > 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 

      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity> 
</application> 
<uses-permission android:name="android.permission.INTERNET"/> 
</manifest> 


my error in logcat after login button clicks: 


10-20 04:22:05.593 7672-7672/com.example.iyas.loginapp E/AndroidRuntime﹕ 
     FATAL EXCEPTION: main 
       Process: com.example.iyas.loginapp, PID: 7672 
      java.lang.IllegalStateException: Could not execute method of the activity 
     at android.view.View$1.onClick(View.java:3970) 
     at android.view.View.performClick(View.java:4598) 
     at android.view.View$PerformClick.run(View.java:19268) 
     at android.os.Handler.handleCallback(Handler.java:738) 
     at android.os.Handler.dispatchMessage(Handler.java:95) 
     at android.os.Looper.loop(Looper.java:135) 
     at android.app.ActivityThread.main(ActivityThread.java:5070) 
     at java.lang.reflect.Method.invoke(Native Method) 
     at java.lang.reflect.Method.invoke(Method.java:372) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:836) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:631) 
    Caused by: java.lang.reflect.InvocationTargetException 

    Caused by: android.os.NetworkOnMainThreadException

和應用程序停止不幸

來源

2014-10-20 Mariyam

將你的調用web的代碼放在線程內 – 2014-10-20 09:13:22

首先請確保您有Internet權限

<uses-permission android:name="android.permission.INTERNET"/>

然後把裏面的線程中運行時間長，調用Web方法是長時間的操作，從而將其放在主題

Thread thread = new Thread(new Runnable(){ 
    @Override 
    public void run() { 
     try { 
      //Your web calling goes here 


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




thread.start();

這將工作

但也可以嘗試添加此代碼到您的班級，以確保每件事情都會很好

StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build(); 

StrictMode.setThreadPolicy(policy);

來源

2014-10-20 09:17:52

我試過用thread.there沒有錯誤。但是應用程序無法連接到database.it不檢索任何東西。任何人都可以幫助 – Mariyam 2014-10-20 16:30:50

在您的瀏覽器中編寫您的本地服務器地址，並確保它的第一個可到達的地址 – 2014-10-21 07:17:14

您可以使用AsyncTask調用與網絡相關的請求。在AsyncTask的doInBackground方法中請求。如果你在主線程上執行網絡相關的請求，則引發NetworkOnMainThreadException異常

來源

2014-10-20 09:25:24

不能與Android在wampserver本地主機使用模擬器

回答

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