Question

我的服务器一直在运行以从代理接收数据，但代理在一次运行后就会关闭。甚至我的timer.Elapsed += new ElapsedEventHandler(OnTimedEvent);也无法正常工作。

代理商代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.Net.Sockets;
using System.Timers;
using System.Threading;

namespace HeartBeatAgent
{
public class Agent
{

    static string clientdata = "IP1 Version 1";
    static UdpClient UdpAgent = new UdpClient();
    static System.Timers.Timer timer = new System.Timers.Timer();
    static int ip = 127001;
    static int port = 6060;
    static IPEndPoint receivePoint;



    static void Main(string[] args)
    {
        UdpAgent = new UdpClient(port);
        receivePoint = new IPEndPoint(new IPAddress(ip), port);
        Thread startClient = new Thread(new ThreadStart(startAgent));
        //Start the Thread
        startClient.Start();
    }

    public static void startAgent()
    {

        Console.WriteLine("This is Agent");

        //Send Data
        System.Text.ASCIIEncoding encode = new System.Text.ASCIIEncoding();
        string sendString = clientdata.ToString();
        byte[] sendMsg = encode.GetBytes(sendString);

        //Send to Server to corresponding port of server
        UdpAgent.Send(sendMsg, sendMsg.Length, "localhost", 6767);
        Console.WriteLine("Msg sent to server 4m agent");


        //Receive Data from Server
        byte[] recMsg = UdpAgent.Receive(ref receivePoint);
        System.Text.ASCIIEncoding receive = new System.Text.ASCIIEncoding();
        //Split it up
        string[] temp = receive.GetString(recMsg).Split(new Char[] { ' ' });
        Console.WriteLine(temp[2] + temp[1] + temp[0]);

        **timer.Elapsed += new ElapsedEventHandler(OnTimedEvent);**
        timer.Interval = 10000;
        timer.Start();

    }

    private static void OnTimedEvent(object source, ElapsedEventArgs e)
    {
        startAgent();
    }

}
}

服务器代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.Net.Sockets;

namespace HeartBeatServer
{
public class Server
{
    public static void Main(string[] args)
    {
        UdpClient UdpServer = new UdpClient(6767);

        int count = 0;
        while (true)
        {
            try
            {

                Dictionary<string, int> agentCount = new Dictionary<string, int>();

                Console.WriteLine("This is server");
                //Define a Receive point
                IPEndPoint RemoteIpEndPoint = new IPEndPoint(IPAddress.Any, 0);

                //Receive Data from Agent
                byte[] recData = UdpServer.Receive(ref RemoteIpEndPoint);
                System.Text.ASCIIEncoding encode = new System.Text.ASCIIEncoding();
                //Split it up by space
                string[] temp = encode.GetString(recData).Split(new Char[] { ' ' });
                if (agentCount.ContainsKey(temp[0]))
                {
                    var coun = agentCount[temp[0]];

                    agentCount.Add(temp[0], coun++);
                    Console.WriteLine(coun);

                }
                else
                {
                    agentCount.Add(temp[0], count);
                    Console.WriteLine(temp[0], count);
                    //Re-send the Data to Agent
                    byte[] sendData = encode.GetBytes(System.DateTime.Now.ToString());
                    UdpServer.Send(sendData, sendData.Length, "localhost", 6060);
                    Console.WriteLine("Reply Message Sent to Agent 4m Server");
                }


                Console.WriteLine(temp[0] + temp[1] + temp[2]);
                continue;
            }


            catch (Exception ex)
            {
                throw ex;
            }
        }

    }
}
}

我需要以5-10秒的时间间隔连续向服务器发送消息。能够第一次实现。知道我哪里错了吗？

Answer 1

问题是你正在创建一个调用方法的Thread，一旦该方法结束，Thread将停止执行。而不是使用线程，将Main方法替换为：

static void Main(string[] args)
{
    UdpAgent = new UdpClient(port);
    receivePoint = new IPEndPoint(new IPAddress(ip), port); 
    timer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
    timer.Interval = 10000;
    timer.Start();
}

并从startAgent方法中删除所有与计时器相关的代码。

TimerElapsedEvent无法在C＃中的UDP代理中工作

1 个答案: