JAVA HttpURLConnection 获取网页内容

JAVA HttpURLConnection 获取网页内容

import java.net.URL;import java.net.MalformedURLException;import java.net.HttpURLConnection;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.BufferedReader;class Hello{private String name;private static HttpURLConnection connection = null;public static String httpRequest(String url){String content = "";try{URL u = new URL(url);connection = (HttpURLConnection)u.openConnection();connection.setRequestMethod("GET");int code = connection.getResponseCode();if(code == 200){InputStream in = connection.getInputStream();InputStreamReader isr = new InputStreamReader(in,"utf-8");BufferedReader reader = new BufferedReader(isr);String line = null;while((line = reader.readLine()) != null){content += line;}}}catch(MalformedURLException e){e.printStackTrace();}catch(IOException e){e.printStackTrace();}finally{if(connection != null){connection.disconnect();}}return content;}public static void main(String[] args){String content = httpRequest("http://www.baidu.com/");System.out.println(content);}}