StreamWriter 不创建新文件

Question

软件：Visual Web Developer 2008 Express Edition 框架：ASP.NET 3.5 语言：C# 书籍：编程ASP.NET3.5

我正在尝试书中的代码，但它没有按预期创建 C:\CodeLocal\test.txt

global.asax

<%@ Application Language="C#" %>
<%@ Import Namespace="System.IO" %>


<script runat="server">

    void Application_Start(object sender, EventArgs e) 
    {
        // Code that runs on application startup
        Application["strStartMsg"] = "The application has started.";
        string[] Books = {"SciFi","Fiction","Computers","History","Religion"};
        Application["arBooks"] = Books;
        WriteFile("Application Starting");
    }

    void Application_End(object sender, EventArgs e) 
    {
        //  Code that runs on application shutdown
        Application["strEndMsg"] = "The application is ending.";
        WriteFile("Application Ending");
    }

    void WriteFile(string strText) {
        StreamWriter writer = new StreamWriter(@"C:\CodeLocal\test.txt",true);
        string str;
        str = DateTime.Now.ToString() + " " + strText;
        writer.WriteLine(str);
        writer.Close();
    }

</script>

Demo.aspx.cs

public partial class ApplicationStateDemo : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        StringBuilder sb = new StringBuilder();
        sb.AppendFormat("{0}<br/>",(string)Application["strStartMsg"]);
        sb.AppendFormat("{0}<br/>", (string)Application["strEndMsg"]);

        string[] arTest = (string[])Application["arBooks"];
        sb.AppendFormat("{0}<br/>",arTest[1].ToString());

        lblText.Text = sb.ToString();
    }
}

当我运行代码时，我的浏览器看起来像这样

但是当我关闭浏览器停止执行时，没有test.txt创建

代码看起来正确，为什么不起作用？

Answer 1

因为您的应用程序在哪个应用程序池下的身份运行可能没有目录C:\CodeLocal的写入权限。尝试在此文件夹上授予应用程序池标识写入权限。

Answer 2

您是否正在寻找 Session_Start 和 End 事件处理程序？

当浏览器关闭时，应用程序不会结束（并且 Application_End 事件处理程序不会被调用）。必须告诉应用程序池以优雅的方式结束。当应用程序池在一段时间不活动后回收或关闭时，就会发生这种情况。

StreamWriter 不创建新文件

StreamWriter doesn't create new file

c#

asp.net

streamwriter