退出后 C# 控制台应用程序仍在内存中 - 异步 Web 服务

Question

我是 C# 和 .Net 的新手。我的老板要求我使用 Web 服务使用异步回调创建一个计时器。我实际创建了它，并让它开始工作，但每当我关闭控制台应用程序窗口时，Web 服务仍在运行。当我重新运行该应用程序时，它从 0 开始计数器，但会来回跳转到上次运行时的数字(仍在内存中)。

mainMethod() 每 10 秒将数字递增 1，monitorMethod() 读取该数字，并返回一个字符串。

如何停止 Web 服务，并在每次关闭控制台窗口时将计数器重置为 0？

我希望这是有道理的!提前致谢!

这是我的代码。

网络服务:

 public class Service1 : System.Web.Services.WebService
 {
    private int iTotal;
    private int iCurrent;

    [WebMethod]
    public void mainMethod()
    {
        iTotal = 42;
        iCurrent = 1;
        Application["iTotal"] = iTotal;
        Application["iCurrent"] = iCurrent;
        // sleep 10 seconds
        while (iCurrent <= iTotal)
        {
            Application["iCurrent"] = iCurrent;
            iCurrent++;
            System.Threading.Thread.Sleep(10000);                
        }
    }

    [WebMethod]
    public string monitorMethod()
    {
        iCurrent = int.Parse(Application["iCurrent"].ToString());
        iTotal = int.Parse(Application["iTotal"].ToString());
        if (iCurrent <= iTotal)
        {
            return iCurrent + " of " + iTotal;
        }
        else
            return "DONE";
    }
  }
}

客户端

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        Service1 client = new Service1(); //web service proxy
        client.mainMethodCompleted += new mainMethodCompletedEventHandler(client_mainMethodCompleted);

        if (Session["value"] == null)
        {
            Session["value"] = true;
        }

        if (!IsPostBack)
        {
            client.BeginmainMethod(AsyncCallback, null);
            string scriptFunction = "<script type=\"text/javascript\">function reSubmit(){ document.getElementById(\"" + btnProcessNext.ClientID + "\").click(); }</script>";
            this.RegisterClientScriptBlock("s1", scriptFunction);
            string script = "<script type=\"text/javascript\">setTimeout(\"reSubmit()\", 500);</script>";
            this.RegisterStartupScript("submit", script);
        }
        else
        {
            if (StringParseByMe(lblStatus.Text))
            {
                string scriptFunction = "<script type=\"text/javascript\">function reSubmit(){ document.getElementById(\"" + btnProcessNext.ClientID + "\").click(); }</script>";
                this.RegisterClientScriptBlock("s1", scriptFunction);
                string script = "<script type=\"text/javascript\">setTimeout(\"reSubmit()\", 500);</script>";
                this.RegisterStartupScript("submit", script);
            }
            else
                return;
        }
    }

    protected void btnProcessNext_Click(object sender, EventArgs e)
    {
        Service1 client = new Service1();
        string label = client.monitorMethod();
        Session["value"] = StringParseByMe(label);
        lblStatus.Text = label;
    }

    private bool StringParseByMe(string sparse)
    {
        if (sparse == "DONE")
            return false;

        string[] sparseArray = sparse.Split(' ');
        if (int.Parse(sparseArray[0]) == int.Parse(sparseArray[2]))
        {
            return false;
        }
        else
            return true;
    }

    void client_mainMethodCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
    {
        Service1 client = new Service1();
        client.EndmainMethod(ar);
    }

    public void AsyncCallback(IAsyncResult ar)
    {
    }
  }
}

网页

<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<h2>
    Counter</h2>
    <br /><br /><br /><br /><br /><br />
<asp:Label ID="lblStatus" runat="server" Text="0 of -1" Font-Bold="True" 
    Font-Size="XX-Large" ForeColor="#CC0000"></asp:Label>
    <br /><br /><br /><br />
<asp:Button ID="btnProcessNext" runat="server" Text="Refresh" 
    onclick="btnProcessNext_Click" />
</asp:Content>

Answer 1

可以在页面上放一个按钮，把停止定时器的逻辑写在按钮的点击事件中。之后，生成关闭窗口的脚本。