02-Response简单响应报文

package com.day5;

import java.io.BufferedWriter;

import java.io.IOException;

import java.io.OutputStream;

import java.io.OutputStreamWriter;

import java.net.ServerSocket;

import java.net.Socket;

import java.util.Date;

public class Server {

    /**刘诗华　Response响应

     * @param args

     * @throws Exception

     */

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

        //设置换行符

        String CRLF = "\r\n";

        //申请注册8080套接字

        ServerSocket server=new ServerSocket(8080);

        System.out.println("开始接受请求...");

        //接受客户端请求

        Socket socket = server.accept();

        //获取客户端对象输出流对象

        OutputStream out = socket.getOutputStream();

        //将字节输出流转换成字符输出流

        OutputStreamWriter writer = new OutputStreamWriter(out);

        //将字符输出流转换成缓冲字符流

        BufferedWriter bw = new BufferedWriter(writer);

        StringBuilder response=new StringBuilder();

        //响应报文主体内容

        String html="<h1>Hello my name is liu shi hua</h1>";

        //设置响应头信息

        response.append("HTTP/1.1 200 OK").append(CRLF);

        response.append("Server:Apache/2.4.10 (Win32) PHP/5.3.28").append(CRLF);

        response.append("Date:").append(new Date()).append(CRLF);

        response.append("Content-Type:text/html").append(CRLF);

        response.append("Content-Length: "+html.getBytes().length).append(CRLF);

        response.append(CRLF);

        response.append(html);

        //发送数据到客户端

        bw.write(response.toString());

        //关闭资源流

        bw.close();

        socket.close();

        server.close();

        System.out.println(response);

    }

}

响应报文格式

HTTP/1.1 200 OK

Server:Apache/2.4.10 (Win32) PHP/5.3.28

Date:Fri, 06 Jul 2018 14:52:32 GMT

Content-Type:text/html

Content-Length: 17

<h1>Hello</h1>