socket获取web网站数据的方法

通过HttpURLConnection我可以轻松的获取网站数据：
public class NewSocket {

public static String getNetData(String host) throws IOException {

    HttpURLConnection conn = (HttpURLConnection) new URL(host).openConnection();
    InputStream inputStream = conn.getInputStream();
    int len = 1;
    byte[] buffer = new byte[1024];
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    while ((len = inputStream.read(buffer)) != -1) {
        byteArrayOutputStream.write(buffer, 0, len);
    }
    return new String(byteArrayOutputStream.toByteArray());
}

public static void main(String[] args) {
    try {
    System.out.println(NewSocket.getNetData("http://localhost:8080/videoweb"));
    } catch (IOException e) {
        e.printStackTrace();
    }
}

}

但是通过socket的话，我不知道怎么访问web数据。
public class OtherNewSocket {

public static String getNetData(String host, int port) throws IOException {
    Socket socket = new Socket(host, port);
    byte[] buffer = new byte[1024];
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    int len = 0;
    while ((len = socket.getInputStream().read(buffer)) != -1) {
        byteArrayOutputStream.write(buffer);
    }
    return new String(byteArrayOutputStream.toByteArray());
}

public static void main(String[] args) {
    try {
        System.out.println(OtherNewSocket.getNetData("localhost", 8080));
    } catch (IOException e) {
        e.printStackTrace();
    }
}

}
求指教,然后我想知道通过url访问和通过socket访问有什么不同点，我理解的就是，通过url访问访问的直接是某个项目网页地址，而通过socket访问呢，则是端对端的访问，也就是访问的其实是目标服务器的某一端口上的进程，但是如果要具体访问进程上的项目，也就是默认欢迎页面index.jsp,又该如何做呢

你需要看下http协议的底层啊，
live.html是一个资源路径啊，
获取别的就写别的了，只是举个例子。
你可以参看http协议

模拟HTTP发送一个get请求即可

[code="java"]
package com.iteye.wenda.socket;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;

public class HttpGetWebPage {
public static void main(String[] args) {
try {
Socket socket = new Socket("mdcc.csdn.net", 80);
BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
PrintWriter out = new PrintWriter(socket.getOutputStream(),true);
out.print("GET /live.html HTTP/1.1");
out.println("/n");

        String rep = "";
        while(null!=(rep = reader.readLine())){
            System.out.println(rep);
        }

        out.flush();
        out.close();
        reader.close();
    } catch (UnknownHostException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

}

[/code]

别忘给分啊，兄弟！