Webapps初步_认识HTTP例子程序读取

package servlet_01;

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

public class Test {

	/**检测HTTP协议是什么一个东西
	 * @param args
	 */
	public static void main(String[] args) throws Exception {
		//连到tomcat Server
		Socket socket = new Socket("127.0.0.1", 8080);
		//拿到输出流
		PrintWriter pw = new PrintWriter(new OutputStreamWriter(
				socket.getOutputStream()));
		pw.println("GET /aaa HTTP/1.1");	//GET+URL地址+HTTP/1.1，自己去看浏览器
		pw.println("Host:localhost");//Host+域名
		pw.println("Content-type:text/html");
		pw.println();	//请求结束
		pw.flush();
		//输入流读取
		BufferedReader br = new BufferedReader(new InputStreamReader(
				socket.getInputStream()));
		String str = "";
		while ((str = br.readLine()) != null) {
			System.out.println(str);

		}
		br.close();
		pw.close();
		socket.close();
	}

}

读取tomcat的页面的html内容，了解HTTP协议。