Android向Http服务器发送Http请求异常-UnknowHostException

http://blog.csdn.net/garfier/article/details/5892854

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1. public static String httpRequest(String url){  
2.     HttpParams httpParams = new BasicHttpParams();  
3.        HttpConnectionParams.setConnectionTimeout(httpParams,    
4.                30000);    
5.        HttpConnectionParams.setSoTimeout(httpParams,    
6.                30000);    
7.        //新建HttpClient对象    
8.        HttpClient httpClient = new DefaultHttpClient(httpParams);    
9.     HttpGet httpGet = new HttpGet(url);  
10.     try {  
11.         HttpResponse response = httpClient.execute(httpGet);  
12.         if (response.getStatusLine().getStatusCode()!=HttpStatus.SC_OK){  
13.             System.out.println("Bad Request!");  
14.         }  
15.         System.out.println(response.toString());  
16.         return response.toString();  
17.     } catch (IOException e) {  
18.         // TODO Auto-generated catch block  
19.         e.printStackTrace();  
20.     }  
21.       
22.     return "Something Wrong";  
23. }  

 

解决方案：

开放Internet访问权限

androidmanifest.xml