模拟服务器

Posted 2021-01-10 邢覃

public static void main(String[] args) throws IOException {
        System.out.println("服务端 启动 , 等待连接 .... ");
// 创建ServerSocket 对象
        ServerSocket server = new ServerSocket(8888);
        Socket socket = server.accept();
// 转换流读取浏览器的请求消息
        BufferedReader readWb = new BufferedReader(new InputStreamReader(socket.getInputStream()));
        String requst = readWb.readLine();
// 取出请求资源的路径
        String[] strArr = requst.split(" ");
// 去掉web前面的/
        String path = strArr[1].substring(1);
// 读取客户端请求的资源文件
        FileInputStream fis = new FileInputStream(path);
        byte[] bytes = new byte[1024];
        int len = 0;
// 字节输出流,将文件写会客户端
        OutputStream out = socket.getOutputStream();
// 写入HTTP协议响应头,固定写法
        out.write("HTTP/1.1 200 OK
".getBytes());
        out.write("Content‐Type:text/html
".getBytes());
// 必须要写入空行,否则浏览器不解析
        out.write("
".getBytes());
        while ((len = fis.read(bytes)) != -1) {
            out.write(bytes, 0, len);
        }
        fis.close();
        out.close();
        readWb.close();
        socket.close();
        server.close();
    }