imessagesender.cs

来自「C常用算法程序集,一部比较经典的程序算法合集」· CS 代码 · 共 69 行

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.Net;
using System.Net.Sockets;
using System.IO;

namespace mychat1
{
    public interface IMessageSender
    {
        bool Connect(IPAddress ip, int port);		// 连接到服务端
        bool SendMessage(Message msg);				// 发送用户
        void SignOut();									// 注销系统
    }

    public class MessageSender : IMessageSender
    {

        TcpClient client;
        Stream streamToServer;

        // 连接至远程
        public bool Connect(IPAddress ip, int port)
        {
            try
            {
                client = new TcpClient();
                client.Connect(ip, port);
                streamToServer = client.GetStream();	// 获取连接至远程的流
                return true;
            }
            catch
            {
                return false;
            }
        }

        // 发送消息
        public bool SendMessage(Message msg)
        {
            try
            {
                lock (streamToServer)
                {
                    byte[] buffer = Encoding.Unicode.GetBytes(msg.ToString());
                    streamToServer.Write(buffer, 0, buffer.Length);
                    return true;
                }
            }
            catch
            {
                return false;
            }
        }

        // 注销
        public void SignOut()
        {
            if (streamToServer != null)
                streamToServer.Dispose();
            if (client != null)
                client.Close();
        }
    }

}