Question

我将尽力保持简短。

我在visual studio 2010中创建了一个非常简单的asp.net网站。我在一个连接到亚马逊RDS数据库的特定页面上有一个简单的代码。

当我在本地计算机上运行此网站时，它可以很好地从数据库中提取数据。但是当我通过1and1.com将文件放到microsoft webhost服务器上时，我得到了大量的错误消息。

我的网站www.kellendenny.com/Default.aspx加载正常。如果你必须www.kellendenny.com/Styles/WebForm1.aspx，你应该看到我正在谈论的错误。

我不明白为什么代码可以在本地计算机上运行，但不能从webhost运行。

感谢您的时间。

下面的

是WebForm1.aspx页面的代码。

<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication1.Styles.WebForm1" %>
<%@ Register assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" namespace="System.Web.UI.DataVisualization.Charting" tagprefix="asp" %>
<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<h2>Data</h2>
    <meta http-equiv="Refresh" content="4" /> 
    <asp:Chart ID="Chart1" runat="server" DataSourceID="SqlDataSource1" 
        Width="900px">
        <series>
            <asp:Series ChartType="Line" Name="Series1" XValueMember="DateTime" 
                YValueMembers="Voltage">
            </asp:Series>
        </series>
        <chartareas>
            <asp:ChartArea Name="ChartArea1">
            </asp:ChartArea>
        </chartareas>
    </asp:Chart>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:db2ConnectionString %>" 
        SelectCommand="SELECT [DateTime], [Voltage] FROM [Table1]">
    </asp:SqlDataSource>
    <br />
    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 
        DataSourceID="SqlDataSource1">
        <Columns>
            <asp:BoundField DataField="DateTime" HeaderText="DateTime" 
                SortExpression="DateTime" />
            <asp:BoundField DataField="Voltage" HeaderText="Voltage" 
                SortExpression="Voltage" />
        </Columns>
    </asp:GridView>
</asp:Content>

这是web.config文件的代码

<?xml version="1.0"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
  <appSettings>
    <add key="ChartImageHandler" value="storage=file;timeout=20;dir=c:\TempImageFiles\;" />
  </appSettings>
  <connectionStrings>
    <add name="db2ConnectionString" connectionString="Data Source=testdevelopment.cwroskb2ogi8.us-west-2.rds.amazonaws.com,1433;Initial Catalog=db2;Persist Security Info=True;User ID=XXXXX;Password=XXXXXXXXXXX"
      providerName="System.Data.SqlClient" />
  </connectionStrings>
  <system.web>
    <customErrors mode="Off"/>
    <httpHandlers>
      <add path="ChartImg.axd" verb="GET,HEAD,POST" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
        validate="false" />
    </httpHandlers>
    <pages>
      <controls>
        <add tagPrefix="asp" namespace="System.Web.UI.DataVisualization.Charting"
          assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      </controls>
    </pages>
    <compilation debug="true" targetFramework="4.0">
      <assemblies>
        <add assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
      </assemblies>
    </compilation>
    <authentication mode="Forms">
      <forms loginUrl="~/Account/Login.aspx" timeout="2880"/>
    </authentication>
    <membership>
      <providers>
        <clear/>
        <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/"/>
      </providers>
    </membership>
    <profile>
      <providers>
        <clear/>
        <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/"/>
      </providers>
    </profile>
    <roleManager enabled="false">
      <providers>
        <clear/>
        <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/"/>
        <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/"/>
      </providers>
    </roleManager>
  </system.web>
  <system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <modules runAllManagedModulesForAllRequests="true" />
    <handlers>
      <remove name="ChartImageHandler" />
      <add name="ChartImageHandler" preCondition="integratedMode" verb="GET,HEAD,POST"
        path="ChartImg.axd" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
    </handlers>
  </system.webServer>
</configuration>

Answer 1

基于您能够从本地网络上的本地计算机连接到AWS RDS的事实。这表明您的连接字符串确实是正确的。

由于在部署代码时出现问题，我认为托管服务提供商可能阻止或要求打开/应用防火墙规则。这可以通过支持查询或通过1and1.com上的站点控制面板实现

连接到AWS RDS数据库时出现ASP.NET错误

1 个答案: