public class HttpHelper {     //1:标准的Java接口     public static String getStringFromNet1(String param){         String result="";         try{             URL url=new URL(param);             HttpURLConnection conn=(HttpURLConnection)url.openConnection();             if(conn.getResponseCode()==HttpURLConnection.HTTP_OK){                 InputStream is=conn.getInputStream();                 byte[]data=new byte[1024];                 int len=is.read(data);                 result=new String(data,0,len);                 is.close();                 conn.disconnect();             }         }catch(Exception e){             e.printStackTrace();         }         return result;     }     //2:Apache接口     public static String getStringFromNet2(String param){         String result="";         try{             HttpClient client=new DefaultHttpClient();             HttpGet get=new HttpGet(param);             HttpResponse response=client.execute(get);             if(response.getStatusLine().getStatusCode()==HttpStatus.SC_OK){                 result=EntityUtils.toString(response.getEntity());             }         }catch(Exception e){             e.printStackTrace();         }         return result;     } }