JavaSE的HTTP协议GET请求

package com.taoistwar.jsp.http;

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

public class TestHttpGET {

	public static void main(String[] args) {
		try {
			Socket s = new Socket("127.0.0.1", 8181);
			PrintWriter pw = new PrintWriter(new OutputStreamWriter(s
					.getOutputStream()));
			pw.println("GET /jsp/index.jsp HTTP/1.1");
			pw.println("Host: localhost");
			pw.println("Content-Type: text/html");
			pw.println();
			pw.flush();
			BufferedReader br = new BufferedReader(new InputStreamReader(s
					.getInputStream()));
			String str = null;
			while ((str=br.readLine()) != null) {
				System.out.println(str);
			}
			br.close();
			pw.close();
			s.close();
		} catch (UnknownHostException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

}