Java根据一个网址链接获取源代码

package test;



import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.net.HttpURLConnection;

import java.net.URL;



public class HttpTest {

    private String u;

    private String encoding;



    public static void main(String[] args) throws Exception {

        HttpTest client = new HttpTest("http://www.baidu.com/", "UTF-8");

        client.run();

    }



    public HttpTest(String u, String encoding) {

        this.u = u;

        this.encoding = encoding;

    }



    public void run() throws Exception {



        URL url = new URL(u);// 根据链接（字符串格式），生成一个URL对象



        HttpURLConnection urlConnection = (HttpURLConnection) url

                .openConnection();// 打开URL



        BufferedReader reader = new BufferedReader(new InputStreamReader(

                urlConnection.getInputStream(), encoding));// 得到输入流，即获得了网页的内容

        String line; // 读取输入流的数据，并显示

        while ((line = reader.readLine()) != null) {

            System.out.println(line);

        }

    }

}