Question

我收到此错误消息

连接字符串＆＃39; MyConnection＆＃39;在应用程序中配置文件不包含必需的providerName 属性＆＃34;

关于同样的问题，我读了这个问题The connection string 'MyConnection' in the application's configuration file does not contain the required providerName attribute."。

在我的例子中，providerName =＆＃34; System.Data.SqlClient＆＃34;正确地在我的本地web.config文件中，但是当我在我的生产服务器上发布（在发布版本中）时，它会消失。我的本地服务器上没有问题。

修改

这是我的发布配置文件

<?xml version="1.0" encoding="utf-8"?>

<!-- For more information on using web.config transformation visit http://go.microsoft.com/fwlink/?LinkId=125889 -->

<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
  <!--
    In the example below, the "SetAttributes" transform will change the value of 
    "connectionString" to use "ReleaseSQLServer" only when the "Match" locator 
    finds an attribute "name" that has a value of "MyDB".

    <connectionStrings>
      <add name="MyDB" 
        connectionString="Data Source=ReleaseSQLServer;Initial Catalog=MyReleaseDB;Integrated Security=True" 
        xdt:Transform="SetAttributes" xdt:Locator="Match(name)"/>
    </connectionStrings>
  -->
  <system.web>
    <compilation xdt:Transform="RemoveAttributes(debug)" />
    <!--
      In the example below, the "Replace" transform will replace the entire 
      <customErrors> section of your web.config file.
      Note that because there is only one customErrors section under the 
      <system.web> node, there is no need to use the "xdt:Locator" attribute.

      <customErrors defaultRedirect="GenericError.htm"
        mode="RemoteOnly" xdt:Transform="Replace">
        <error statusCode="500" redirect="InternalError.htm"/>
      </customErrors>
    -->
  </system.web>
</configuration>

Answer 1

将此用于您的发布配置文件：

<connectionStrings>
    <add name="MyDB" 
      connectionString="Data Source=ReleaseSQLServer;Initial Catalog=MyReleaseDB;Integrated Security=True" 
      xdt:Transform="SetAttributes" xdt:Locator="Match(name)" providerName="System.Data.SqlClient" />
  </connectionStrings>

本地的ConnectionString正在由发布配置文件进行更改。因此，如果您在本地配置中声明providerName，那么在发布发布文件时将无用。您还需要在发布配置文件中声明providerName。

我的本地和生产web.config之间的区别

1 个答案: