UrlMapping(String, String) 构造函数

参考

定义

命名空间:: System.Web.Configuration

程序集:: System.Web.dll

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

初始化 UrlMapping 类的新实例。

public:
 UrlMapping(System::String ^ url, System::String ^ mappedUrl);

public UrlMapping (string url, string mappedUrl);

new System.Web.Configuration.UrlMapping : string * string -> System.Web.Configuration.UrlMapping

Public Sub New (url As String, mappedUrl As String)

参数

url: String

要显示给用户的 URL。

mappedUrl: String

您的 Web 应用程序中存在的 URL。

示例

以下示例使用 UrlMappingsSection Web.config 文件的映射两个 URL，并为其他 URL 添加映射。修改并保存Web.config文件时，应用程序将重启。

<%@ Page Language="C#" %>
<%@ Import Namespace="System.Web.Configuration" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
    int showVal = 0;

    protected void Page_Load(object sender, EventArgs e)
    {
        // Get the parameter value from the QueryString
        if (Request.Params["show"] != null)
            showVal = Int32.Parse(Request.Params["show"]);

        // Show a page depending on the parameter value
        NoShowPanel.Visible = (showVal == 0);
        ShowHomePage.Visible = (showVal == 1);
        ShowProductsPage.Visible = (showVal == 2);
        ShowEventsPage.Visible = (showVal == 3);

        // <Snippet2>
        UrlMapping urlMap = null;
        
        // Open Web.config
        Configuration config =
            WebConfigurationManager.OpenWebConfiguration("~");
        // Get the UrlMappings section
        UrlMappingsSection urlMapSection =
            (UrlMappingsSection)config.GetSection(
                "system.web/urlMappings");
        
        // Modify UrlMapping in Web.config first time through
        if (!Page.IsPostBack)
        {
            // If not already added, add a UrlMapping to the section
            if (urlMapSection.UrlMappings.Count == 2)
            {
                urlMap = new UrlMapping("~/events.aspx", 
                    "~/default.aspx?show=3");
                urlMapSection.UrlMappings.Add(urlMap);
                
                // This line assumes permission to write to disk
                config.Save();
            }
        }

        if (showVal > 0)
        {
            // <Snippet4>
            urlMap = (UrlMapping)urlMapSection.UrlMappings[showVal - 1];
            realURL.Text = urlMap.MappedUrl;
            // </Snippet4>
        }
        // </Snippet2>
    }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>UrlMapping Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
    <asp:Panel ID="NoShowPanel" runat="server" Visible="true">
        <h2>Show no page</h2>
        <p><a href="home.aspx">Home.aspx</a></p>
        <p><a href="products.aspx">Products.aspx</a></p>
        <p><a href="events.aspx">Events.aspx</a></p>
    </asp:Panel>
    <asp:Panel ID="ShowHomePage" runat="server" Visible="false">
        <h2>Home Page</h2>
        <p><a href="products.aspx">Products.aspx</a></p>
        <p><a href="events.aspx">Events.aspx</a></p>
    </asp:Panel>
    <asp:Panel ID="ShowProductsPage" runat="server" Visible="false">
        <h2>Products Page</h2>
        <p><a href="home.aspx">Home.aspx</a></p>
        <p><a href="events.aspx">Events.aspx</a></p>
    </asp:Panel>
    <asp:Panel ID="ShowEventsPage" runat="server" Visible="false">
        <h2>Events Page</h2>
        <p><a href="home.aspx">Home.aspx</a></p>
        <p><a href="products.aspx">Products.aspx</a></p>
    </asp:Panel>
    <p>The real URL for this page is 
        <asp:Label ID="realURL" runat="server">[None]</asp:Label></p>

    </div>
    </form>
</body>
</html>

<%@ Page Language="VB" %>
<%@ Import Namespace="System.Web.Configuration" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
    Dim showVal As Integer

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
        ' Get the parameter value from the QueryString
        If Not IsNothing(Request.Params("show")) Then
            showVal = Int32.Parse(Request.Params("show"))
        Else
            showVal = 0
        End If
        
        ' Show a page depending on the parameter value
        NoShowPanel.Visible = (showVal = 0)
        ShowHomePage.Visible = (showVal = 1)
        ShowProductsPage.Visible = (showVal = 2)
        ShowEventsPage.Visible = (showVal = 3)

        ' <Snippet2>
         dim urlMap as UrlMapping

        Dim config As Configuration
        ' Open Web.config
        config = _
            WebConfigurationManager.OpenWebConfiguration("~")
        ' Get the UrlMappings section
        Dim urlMapSection As UrlMappingsSection
        urlMapSection = _
           CType(config.GetSection( _
               "system.web/urlMappings"), UrlMappingsSection)
               
        ' Modify UrlMapping in Web.config first time through
        If (Not Page.IsPostBack) Then
            ' If not already added, add a UrlMapping to the section
            If urlMapSection.UrlMappings.Count = 2 Then
                urlMap = New UrlMapping("~/events.aspx", _
                    "~/default.aspx?show=3")
                urlMapSection.UrlMappings.Add(urlMap)
                
                ' This line assumes permission to write to disk
                config.Save()
            End If
        End If
        
        If showVal > 0 Then
            '<Snippet4>
            urlMap = CType(urlMapSection.UrlMappings(showVal - 1), UrlMapping)
            realURL.Text = urlMap.MappedUrl
            '</Snippet4>
        End If
        ' </Snippet2>
    End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>UrlMapping Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
    <asp:Panel ID="NoShowPanel" runat="server" Visible="true">
        <h2>Show no page</h2>
        <p><a href="home.aspx">Home.aspx</a></p>
        <p><a href="products.aspx">Products.aspx</a></p>
        <p><a href="events.aspx">Events.aspx</a></p>
    </asp:Panel>
    <asp:Panel ID="ShowHomePage" runat="server" Visible="false">
        <h2>Home Page</h2>
        <p><a href="products.aspx">Products.aspx</a></p>
        <p><a href="events.aspx">Events.aspx</a></p>
    </asp:Panel>
    <asp:Panel ID="ShowProductsPage" runat="server" Visible="false">
        <h2>Products Page</h2>
        <p><a href="home.aspx">Home.aspx</a></p>
        <p><a href="events.aspx">Events.aspx</a></p>
    </asp:Panel>
    <asp:Panel ID="ShowEventsPage" runat="server" Visible="false">
        <h2>Events Page</h2>
        <p><a href="home.aspx">Home.aspx</a></p>
        <p><a href="products.aspx">Products.aspx</a></p>
    </asp:Panel>
    <p>The real URL for this page is 
        <asp:Label ID="realURL" runat="server">default.aspx</asp:Label></p>

    </div>
    </form>
</body>
</html>

注解

构造 UrlMapping 函数主要供 ASP.NET 内部使用。无需从此类派生，并且因为它可用于修改 Web.config 文件，因此可能永远不需要在代码中使用它。

适用于

通过

UrlMapping(String, String) 构造函数

定义

参数

示例

注解

适用于

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