如何添加请求超时异常

Question

如何在我的代码中添加请求超时？

下面

是我的代码，访问http类接取服务器，并得到回应，但我想补充超时异常

* 所以如果15秒服务器不响应超时请求中调用我该怎么办？ *

public class AgAppTransAirTimeTopUp extends Activity 
    { 
     private String[][] xmlResponse; 

    public void onCreate(Bundle savedInstanceState) 
    { 

       xmlResponse = 
AgAppHelperMethods.AgAppXMLParser("AG_IT_App/AgMainServlet?source 
="+AgAppHelperMethods.varM  obileNo+"&mobile="+AgAppHelperMethods.varMobileNo+"& 
pin="+AgAppHelperMethods.getPIN(txtTATpinno.getText().toString())+"&messageType=ATO& 
channel=INTERNET); 
       if(!AgAppHelperMethods.flag) 
        { 

Toast.makeText(getApplicationContext(), "Invalid Input " , Toast.LENGTH_SHORT).show(); 
       //  AirTimeProgressDialog.dismiss(); 
        } 
        else 
        { 

       Intent j = new Intent(AgAppTransAirTimeTopUp.this, 
     AgAppTransATTPResponse.class);     
       MyBean bean = new MyBean(); 
       bean.set2DArray(xmlResponse); 
       Bundle b = new Bundle(); 
       b.putSerializable("mybean", bean); 
       j.putExtra("obj", b); 
       startActivity(j); 
     //   value=false; 
        }  //  
     AirTimeProgressDialog.dismiss(); 

     } 

     } 

     catch (Exception e) 
     { 
    Toast.makeText(AgAppTransAirTimeTopUp.this, "Invalid Input " , 
     Toast.LENGTH_SHORT).show();     
     } 



      public class AgAppHelperMethods 
     { 

    private static final String LOG_TAG = null; 
    private static AgAppHelperMethods instance = null; 
    static boolean flag=null != null; 




       public static String smsResponse[][] = new String[20][2]; 

    String[][] xmlRespone = null;  
    public static AgAppHelperMethods getInstance() 
    { 
     if(instance == null) 
      { 
      instance = new AgAppHelperMethods(); 
      } 
     return instance; 
    } 

    public static String getUrl() 
     { 
     String url = "https://xyzaaaaaa/";    
     return url;  
     } 

    public static String[][] AgAppXMLParser(String parUrl) 
    {  
    flag = true;  
    String _node,_element; 
    String[][] xmlRespone = null; 
    HttpURLConnection urlConnection = null;  
    try 
     { 
       String url = AgAppHelperMethods.getUrl() + parUrl; 
       URL finalUrl = new URL(url);     
       urlConnection = (HttpURLConnection) 
         finalUrl.openConnection(); 
       urlConnection.setConnectTimeout(3000);     
       urlConnection.connect();     
       DocumentBuilderFactory dbf = 
        DocumentBuilderFactory.newInstance(); 
       DocumentBuilder db = dbf.newDocumentBuilder(); 
       Document doc = db.parse(finalUrl.toString()); 

         doc.getDocumentElement().normalize();    
       NodeList list=doc.getElementsByTagName("*"); 
       _node=new String(); 
       _element = new String(); 
       xmlRespone = new 
       String[list.getLength()][2];     
       //this "for" loop is used to parse through the 
       //XML document and extract all elements and their 
       //value, so they can be displayed on the device 
       for (int i=0;i<list.getLength();i++) 
        { 
         Node value=list.item(i).  
        getChildNodes().item(0); 
         _node=list.item(i).getNodeName(); 
         _element=value.getNodeValue(); 
         xmlRespone[i][0] = _node; 
         xmlRespone[i][1] = _element;   
        }//end for     
       urlConnection.disconnect();  
     }//end try 
     catch (Exception e) 
      { 
      flag=false; 
      Log.e(LOG_TAG, " Host not responding", e); 
      Messages.setMessage("error"+e.getMessage()); 
     } 
    return xmlRespone;   

    } 

Answer 1

捕获超时异常，我认为这是可以帮助你：

HttpGet request = new HttpGet(""); 

     HttpParams httpParameters = new BasicHttpParams(); 

     /* Set the timeout in milliseconds until a connection is established. 
      The default value is zero, that means the timeout is not used.*/ 

     int timeoutConnection = 60*1000*1; 
     HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection); 

     /* Set the default socket timeout (SO_TIMEOUT) 
      in milliseconds which is the timeout for waiting for data. */ 
     int timeoutSocket = 60*1000*1; 
     HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket); 
     HttpClient client = new DefaultHttpClient(httpParameters); 

     try { 
      HttpResponse httpResponse = client.execute(request); 
     } 
     catch (SocketTimeoutException ex) 
     { 
      // Do something specific for SocketTimeoutException. 
     } 
     catch (ClientProtocolException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } catch (IOException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 
     catch (Exception ex) 
     { 
      // Do something for all other types of exception. 
     }