java简单socket服务器

[java]代码库

import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class Main {
    private static final int PORT = 9999;
    public static void main(String[] args) {

        try {
            // 实例化服务器套接字 设置端口号9999
            ServerSocket server = new ServerSocket(PORT);
            while (true) {
                Socket socket = server.accept();
                // 获取输出流
                BufferedWriter writer = new BufferedWriter(
                    new OutputStreamWriter(socket.getOutputStream()));
                // 写字符串
                writer.write("这是一段来自服务器的问候：Hello");
                writer.flush();
                writer.close();
            }
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

}