Java回炉重造(一)Socket的客户端和服务端通信

自从在课上学完了socket编程，就没接触过，当初的理解很肤浅。
本例实现一个基于控制台的http客户端和服务端。

HttpServ.java

package cn.pangython.httpserv;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;

/**
 * @author pangPython
 * socket通信，服务器端
 */
public class HttpServ {

private ServerSocket serverSocket = null;
private Socket socket = null;
private InputStream inputStream = null;
private InputStreamReader inputStreamReader;
private BufferedReader bufferedReader;

public HttpServ(int port) throws IOException {
        System.out.println("服务器启动成功！");
        System.out.println("服务器正在监听"+port+"端口");
//建立服务端socket
        serverSocket = new ServerSocket(port);
//监听，等待客户机连接
        socket = serverSocket.accept();
//获取socket的输入流
        inputStream = socket.getInputStream();
//输入流读取器
        inputStreamReader = new InputStreamReader(inputStream);
//缓冲读取
        bufferedReader = new BufferedReader(inputStreamReader);
        String line; 
        System.out.println("这是客户端发来的信息：");
//遍历打印
while ((line = bufferedReader.readLine())!=null) {
            System.out.println(line);
        }
        System.out.println("完成一次交互");

    }

public static void main(String[] args) {
try {
new HttpServ(9090);
        } catch (IOException e) {
// TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

HttpClient.java

package cn.pangpython.httpclient;

import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;

/**
 * @author pangPython
 * socket通信客户端
 */
public class HttpClient {

private Socket socket = null;
private OutputStream outputStream = null;
private PrintWriter printWriter;

public HttpClient(String host,int port) throws UnknownHostException, IOException {
//进行socket连接
        socket = new Socket(host, port);
//获取输出流
        outputStream = socket.getOutputStream();
//输出流打印器
        printWriter = new PrintWriter(outputStream);
//写出要发送的信息
        printWriter.write("本消息是客户端发来的信息...");
//将信息刷入socket
        printWriter.flush();
//关闭释放资源
        printWriter.close();
        outputStream.close();
        socket.close();
    }

public static void main(String[] args) {
try {
new HttpClient("127.0.0.1", 9090);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

当然实现一个http服务器并不是那么容易，要循环监听客户端，要多线程，要解析协议头信息等。