Java 基于TCP协议的Socket编程 ——客户端程序

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.Socket;



public class Main {
	public static void main(String[] args) throws IOException{
		Socket socket = new Socket(InetAddress.getLocalHost(),1000);
		System.out.println("socket 信息：" + socket);
		
		// 得到网络输入输出流
		BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
		PrintWriter out = new PrintWriter(socket.getOutputStream());
		BufferedReader localIn = new BufferedReader(new InputStreamReader(System.in));
		
		// 从键盘输入数据，以 exit 字符串为结束，输入完毕后传到服务器端
		String strtmp = null;
		while(!("exit").equals(strtmp = localIn.readLine())){
			out.println(strtmp);
		}
		out.println("exit");
		out.flush(); // 刷新不能缺少，缓冲区数据强制输出
		
		// 得到服务器端传来的信息
		while((strtmp = in.readLine())!= null){
			System.out.println(strtmp);
		}
		
		//关闭输入输出流
		
		in.close();
		out.close();
		localIn.close();
		socket.close();
	}
}