JAVA代理服务器

import java.net.*;   
import java.io.*;   
  
public class URLReader {   
    public static void main(String[] args) throws Exception {   
        // Configure proxy ...   
        System.setProperty("http.proxySet", "true");   
        System.setProperty("http.proxyHost", "proxy.nnnsssfff.com");   
        System.setProperty("http.proxyPort", "8080");   
        System.setProperty("http.proxyType", "4");   
        String proxyUser = "lv.hq", proxyPassword = "自己的密码！！！！！！！！！！！";   
  
        // Open URL ...   
        URL url = new URL("http://www.google.com/");   
        URLConnection con = url.openConnection();   
  
        // proxy user and pass   
        con.setRequestProperty("Proxy-Authorization", "Basic "  
                + new sun.misc.BASE64Encoder()   
                        .encode((proxyUser + ":" + proxyPassword).getBytes()));   
  
        BufferedReader in = new BufferedReader(new InputStreamReader(con   
                .getInputStream()));   
  
        // Read it ...   
        String inputLine;   
        while ((inputLine = in.readLine()) != null)   
            System.out.println(inputLine);   
  
        in.close();   
    }   
}