Тестирование подключения к серверу на Android

Question

Я хочу протестировать подключение к моему локальному хосту (или любому URL-адресу), я сделал простой код для проверки, добавив необходимое разрешение для манифеста, но fonction все еще возвращает «false».

вот мой код:

import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.Button; 
import android.widget.Toast; 

import java.net.URL; 
import java.net.URLConnection; 

public class MainActivity extends AppCompatActivity { 
    String adrs = "http://wwww.google.com"; 
    int time = 10000; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     isConnectedToServer(adrs,time); 



     Button button = (Button) findViewById(R.id.btn); 

     button.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 

      if (isConnectedToServer(adrs,time) == true) { Toast.makeText(getBaseContext(),"Connecté !",Toast.LENGTH_LONG).show();} 
       else {Toast.makeText(getBaseContext(),"Connexion perdue",Toast.LENGTH_LONG).show();} 



       isConnectedToServer(adrs,time); 


      } 
     }); 
    } 

    public boolean isConnectedToServer(String url, int timeout) { 
     try{ 
      URL myUrl = new URL(url); 
      URLConnection connection = myUrl.openConnection(); 
      connection.setConnectTimeout(timeout); 
      connection.connect(); 
      Toast.makeText(getBaseContext(),"Connecté !",Toast.LENGTH_LONG).show(); 
      return true; 
     } catch (Exception e) { 
      // Handle your exceptions 
      Toast.makeText(getBaseContext(),"Connexion perdue",Toast.LENGTH_LONG).show(); 
      return false; 
     } 
    } 
} 

и это мой манифест

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.example.fisher.testconnection"> 
    <uses-permission android:name="android.permission.INTERNET"/> 

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

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

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

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

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

</manifest> 

Answer 1

Капля этот класс в вашем проекте, изменить URL и выполнить задачу, чтобы принести сетевую скорость и статус соединения ваш сервер.

import java.io.IOException; 
import java.math.BigDecimal; 
import java.math.RoundingMode; 
import java.net.MalformedURLException; 
import java.net.URISyntaxException; 
import java.net.URL; 

import org.apache.http.HttpEntity; 
import org.apache.http.HttpResponse; 
import org.apache.http.client.ClientProtocolException; 
import org.apache.http.client.HttpClient; 
import org.apache.http.client.methods.HttpGet; 
import org.apache.http.entity.BufferedHttpEntity; 
import org.apache.http.impl.client.DefaultHttpClient; 
import org.apache.http.params.BasicHttpParams; 
import org.apache.http.params.HttpConnectionParams; 
import org.apache.http.params.HttpParams; 

import android.content.Context; 
import android.os.AsyncTask; 
import android.util.Log; 
import android.widget.TextView; 
import android.widget.Toast; 


public class NetworkSpeedCheckTask extends AsyncTask<Void, Void, String> { 

    private static final int TIMEOUT = 30000; 

    /** 
    * @param networkSped 
    */ 
    public NetworkSpeedCheckTask(TextView networkSped, Context context) { 
     this.networkSped = networkSped; 
     this.context = context; 
    } 

    String linkSpeed3G = "0 Kb/s"; 

    TextView networkSped; 

    private Context context; 

    /** 
    * Before starting background do some work. 
    */ 
    @Override 
    protected void onPreExecute() { 

     if (null != networkSped) 
      networkSped.setText("fetching"); 
    } 

    @Override 
    protected String doInBackground(Void... params) { 

     try { 

      long startTime = System.nanoTime(); 
      HttpGet httpRequest; 
      httpRequest = new HttpGet(new URL("Http://Google.com").toURI()); 

      final HttpParams httpParams = new BasicHttpParams(); 
      HttpConnectionParams.setConnectionTimeout(httpParams, TIMEOUT); 

      HttpClient httpClient = new DefaultHttpClient(httpParams); 

      HttpResponse response = (HttpResponse) httpClient.execute(httpRequest); 

      long endTime = System.nanoTime(); 

      HttpEntity entity = response.getEntity(); 

      BufferedHttpEntity bufHttpEntity = new BufferedHttpEntity(entity); 

      // You can re-check the size of your file 
      final long contentLength = bufHttpEntity.getContentLength(); 

      linkSpeed3G = internetSpeed((endTime - startTime), contentLength, false); 

      // Bandwidth : size(KB)/time(s) 
      float bandwidth = contentLength/((endTime - startTime) * 1000); 

      Log.d("NetworkManger", "-----------[BENCHMARK] Dowload time :" + (endTime - startTime) + " ms"); 

      // Log 
     } catch (MalformedURLException e) { 
      linkSpeed3G = "Failure"; 
      e.printStackTrace(); 
     } catch (URISyntaxException e) { 
      linkSpeed3G = "Failure"; 
      e.printStackTrace(); 
     } catch (ClientProtocolException e) { 
      linkSpeed3G = "Failure"; 
      e.printStackTrace(); 
     } catch (IOException e) { 
      linkSpeed3G = "Failure"; 
      e.printStackTrace(); 
     } finally { 
     } 

     return linkSpeed3G; 

    } 

    /** 
    * Update list ui after process finished. 
    */ 
    protected void onPostExecute(String file_url) { 

     if (null != networkSped) { 

      networkSped.setText(linkSpeed3G); 
      if (linkSpeed3G.equalsIgnoreCase("Failure")) { 
       networkSped.setTextColor(0xE43F3F); 
      } else { 
       networkSped.setTextColor(0xff669900); 
      } 

     } 

     Toast.makeText(context, "linkSpeed3G " + linkSpeed3G, 3000).show(); 
    } 

    public static String internetSpeed(long nSecs, long bytes, boolean showBits) { 

     if (nSecs != 0) { 

      BigDecimal secondsBigDecimal = BigDecimal.valueOf(nSecs).divide(BigDecimal.valueOf(1000000000), 2, 
        RoundingMode.HALF_UP); 
      // long secs = nSecs/1000000000; 

      if (showBits) { 
       BigDecimal bitsBigDecimal = BigDecimal.valueOf(bytes * 8); 
       // long bits = bytes * 8; 

       if (secondsBigDecimal.signum() == 1) { 

        // float speed = bits/secs; 
        BigDecimal speeedBigDecimal = bitsBigDecimal.divide(secondsBigDecimal, 2, RoundingMode.HALF_UP); 

        long Kbit = 1024; 
        long Mbit = Kbit * 1024; 
        long Gbit = Mbit * 1024; 

        float speed = speeedBigDecimal.floatValue(); 

        if (speed < Kbit) 
         return String.valueOf(speed) + " bit/Sc"; 
        if (speed > Kbit && speed < Mbit) 
         return String.valueOf(speed/Kbit) + " Kb/S"; 
        if (speed > Mbit && speed < Gbit) 
         return String.valueOf(speed/Mbit) + " Mb/S"; 
        if (speed > Gbit) 
         return String.valueOf(speed/Gbit) + " Gb/S"; 
       } 
       return "???"; 

      } else { 

       BigDecimal bitsBigDecimal = BigDecimal.valueOf(bytes); 
       // long bits = bytes * 8; 

       if (secondsBigDecimal.signum() == 1) { 

        // float speed = bits/secs; 
        BigDecimal speeedBigDecimal = bitsBigDecimal.divide(secondsBigDecimal, 2, RoundingMode.HALF_UP); 

        long Kbit = 1024; 
        long Mbit = Kbit * 1024; 
        long Gbit = Mbit * 1024; 

        float speed = speeedBigDecimal.floatValue(); 

        if (speed < Kbit) 
         return String.valueOf(speed) + " Byte/Sc"; 
        if (speed > Kbit && speed < Mbit) 
         return String.valueOf(speed/Kbit) + " KB/S"; 
        if (speed > Mbit && speed < Gbit) 
         return String.valueOf(speed/Mbit) + " MB/S"; 
        if (speed > Gbit) 
         return String.valueOf(speed/Gbit) + " GB/S"; 
       } 
       return "???"; 

      } 
     } 
     return "###"; 
    } 

} 

Все, что вам нужно написать одну строку, чтобы проверить подключение к серверу и скорость сети

new NetworkSpeedCheckTask(null, getApplicationContext()).execute();