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public class HttpUtil {     public static String sendHttpRequest(String url) {         BufferedReader reader = null;         String result = null;         String charset = "utf-8";         StringBuffer sbf = new StringBuffer();         String userAgent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36";//模拟浏览器         try {             URL url1 = new URL(url);             HttpURLConnection connection = (HttpURLConnection)url1.openConnection();             connection.setRequestMethod("GET");             connection.setReadTimeout(30000);             connection.setConnectTimeout(30000);             connection.setRequestProperty("User-agent",userAgent);             connection.connect();             InputStream is = connection.getInputStream();             reader = new BufferedReader(new InputStreamReader(                     is, charset));             String strRead = null;             while ((strRead = reader.readLine()) != null) {                 sbf.append(strRead);                 sbf.append("\r\n");             }             reader.close();             result = sbf.toString();         } catch (Exception e) {             e.printStackTrace();         }         return result;     } }

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