聊天室服务器

最新推荐文章于 2023-01-30 19:52:54 发布

anelmanager

最新推荐文章于 2023-01-30 19:52:54 发布

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CC 4.0 BY-SA版权

分类专栏： JAVA 文章标签：聊天 server socket string class thread

本文链接：https://blog.youkuaiyun.com/anelmanager/article/details/7910216

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本文介绍了一个简单的聊天室服务器程序的设计与实现。该程序使用Java语言编写，通过ServerSocket监听客户端连接请求，并利用多线程处理多个客户端之间的消息传递。每当有新客户端加入时，服务器会将其添加到客户端列表中，并启动新的线程来处理该客户端的消息接收与发送。

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package cn.tted.ChatBox;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;

public class Server
{
	public static void main(String[] args) throws IOException
	{
		ServerSocket server = null;
		Socket client;
		ArrayList<Socket> c = new ArrayList<Socket>();
		server = new ServerSocket(4800);
	
		while(true)
		{
			try
			{
				client = server.accept();
				c.add(client);
				System.out.println("server started");
				BufferedReader sin = new BufferedReader(new InputStreamReader(client.getInputStream()));
				new IOThread(c, sin, client).start();
			}
			catch(IOException e)
			{
				System.out.println("started failed");
			}
		}
	}
}

class IOThread extends Thread
{
	BufferedReader sin = null;
	PrintWriter sout = null;
	Socket client;
	ArrayList<Socket> c;
	String name;
	
	public IOThread (ArrayList<Socket> c, BufferedReader sin, Socket client)
	{
		this.sin = sin;
		this.client = client;
		this.c = c;
	}
	
	public void run()
	{
		while(true)
		{
			String smsg = null;
			try
			{
				smsg = sin.readLine();
			}
			catch(IOException e)
			{
				e.printStackTrace();
			}
				
			if(smsg != null)
				for(int i = 0; i < c.size(); i++)
				{
					Socket eachClient = (Socket)(c.get(i));
					try
					{
						sout = new PrintWriter(eachClient.getOutputStream());
						System.out.println("receive" + smsg);
						sout.println(smsg);
					}
					catch(IOException e)
					{
						e.printStackTrace();
					}
					
					sout.flush();
				}
		}
	}
}