Question

您好我已经开发了以下代码来将数据集保存在Global.asax文件中。要在webpage.aspx.vb文件中使用它，现在它正常工作。

以类似的方式，如何在Global.asax中调用存储过程？
请帮忙，提前谢谢！

Shared _cache As Cache = Nothing

Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
    _cache = Context.Cache
    RefreshCache(Nothing, Nothing, 0)
End Sub

Private Shared Sub RefreshCache(ByVal key As String, ByVal item As Object, ByVal reason As CacheItemRemovedReason)
    Dim adapter As New SqlDataAdapter("SELECT * FROM dbo.table where logid = 1", "server=server;database=database;uid=userid;pwd=password")

    Dim ds As New DataSet()
    adapter.Fill(ds, "Quotations")

    Dim onRemove As CacheItemRemovedCallback

    onRemove = New CacheItemRemovedCallback(AddressOf RefreshCache)

    _cache.Insert("Quotes", ds, New CacheDependency("C:\AspNetSql\Quotes.Quotations"), Cache.NoAbsoluteExpiration, Cache.NoSlidingExpiration, CacheItemPriority.[Default], onRemove)
End Sub

Answer 1

通过以下代码获得解决方案。

<%@ Application Language="VB" %>
<%@ Import Namespace="System.DirectoryServices.AccountManagement" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.Common" %>
<%@ Import Namespace="System.Runtime.Remoting.Contexts" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<%@ Import Namespace="System.Web.Caching" %>
<%@ Import Namespace="System.Globalization" %>
<%@ Import Namespace="System.Web.Caching.Cache" %>

<script RunAt="server">

    Shared _cache As Cache = Nothing
    Protected Shared db As Database

    Private cnPubs As SqlConnection
    Private daPubs As SqlDataAdapter
    Private cmdSelPubInfo As SqlCommand


    Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)

        _cache = Context.Cache
        RefreshCache(Nothing, Nothing, 0)
    End Sub

    Public Sub New(ByVal databaseName As String)
        db = New Database(databaseName)
    End Sub

    Private Sub RefreshCache(ByVal key As String, ByVal item As Object, ByVal reason As CacheItemRemovedReason)

        cnPubs = New SqlConnection("server=Servername;database=databasename;uid=userid;pwd=password")
        'select command
        cmdSelPubInfo = New SqlCommand
        cmdSelPubInfo.Connection = cnPubs
        cmdSelPubInfo.CommandType = CommandType.StoredProcedure
        cmdSelPubInfo.CommandText = "storedprocedurename"

        cmdSelPubInfo.Parameters.Add(New SqlParameter("@pStartDate", "01/01/2011"))
        cmdSelPubInfo.Parameters.Add(New SqlParameter("@pEndDate", "01/01/2012"))
        cmdSelPubInfo.Parameters.Add(New SqlParameter("@pErrorMessage", ""))

        'DataApapter
        daPubs = New SqlDataAdapter
        daPubs.SelectCommand = cmdSelPubInfo
        Dim dsPubs = New DataSet

        'Dim ds As New DataSet()
        daPubs.Fill(dsPubs)

        Dim onRemove As CacheItemRemovedCallback

        onRemove = New CacheItemRemovedCallback(AddressOf RefreshCache)

        '' Add the DataSet to the application cache.
        _cache.Insert("Quotes", dsPubs, New CacheDependency("C:\AspNetSql\Quotes.Quotations"), Cache.NoAbsoluteExpiration, Cache.NoSlidingExpiration, CacheItemPriority.[Default], onRemove)
    End Sub
</script>

从global.asax文件调用存储过程

1 个答案: