IBM DB2 Core:ASP.NET Core 2.1和Microsoft Enterprise Libraries的连接字符串 [英] IBM DB2 Core: Connection string for ASP.NET Core 2.1 and Microsoft Enterprise Libraries

问题描述

我正在使用此 .Net Core的Microsoft.EnterpriseLibrary端口.它需要一个配置文件app.config，其中指定了连接字符串.我尝试使用在另一个工作项目中使用的相同连接字符串，但在这里不起作用.

I'm using this Microsoft.EnterpriseLibrary port for .Net Core. It requires a configuration file app.config with the connection string specified in it. I tried using the same connection string I use in another working project, but it doesn't work here.

如何为ASP.NET Core 2.1指定DB2连接字符串?

How can I specify a DB2 connection string for ASP.NET Core 2.1?

我这是我尝试过的:

<connectionStrings>
    <add name="Development" connectionString="server=MY.SERVER.COM:446;database=DBXX;user id=USERXX;password=PASSWORDXX;" providerName="IBM.Data.DB2.Core"/>
</connectionStrings>

但是当我执行此操作时:

But when I execute this:

DatabaseFactory.SetDatabaseProviderFactory(
    new DatabaseProviderFactory(
        new SystemConfigurationSource(false).GetSection
    ), 
    false
);

var db = DatabaseFactory.CreateDatabase("Development");

它引发了这个异常:

Exception has occurred: CLR/System.InvalidOperationException
An exception of type 'System.InvalidOperationException' occurred in Microsoft.Practices.EnterpriseLibrary.Data.dll but was not handled in user code: 'The connection string for the database 'Development' does not exist or does not have a valid provider.'
 Inner exceptions found, see $exception in variables window for more details.
 Innermost exception     System.Configuration.ConfigurationErrorsException : The requested database Development does not have a valid ADO.NET provider name set in the connection string.

我认为提供商名称不正确，但是我在网络上找不到任何有效的示例.

I think the provider name is incorrect, but I can't find any working example on the web.

推荐答案

好，我解决了.原来我找不到IBM.Data.DB2.Core的任何提供程序，所以我这样配置了app.config文件:

Ok, I solved it. It turned out that I couldn't find any provider for IBM.Data.DB2.Core, so I configured my app.config file like this:

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

    <configSections>
        <section name="system.data" type="System.Data.Common.DbProviderFactoriesConfigurationHandler, Microsoft.Practices.EnterpriseLibrary.Data, Version=6.0.0.0, Culture=neutral, PublicKeyToken=null" requirePermission="true" />
        <section name="dataConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings, Microsoft.Practices.EnterpriseLibrary.Data, Version=6.0.0.0, Culture=neutral, PublicKeyToken=null" requirePermission="true" />
    </configSections>

    <dataConfiguration defaultDatabase="Development" />

    <connectionStrings>
        <add name="Development" connectionString="server=MY.SERVER.COM:446;database=DBXX;user id=USERXX;password=PASSWORDXX;" providerName="IBM.Data.DB2.Core"/>
    </connectionStrings>

    <system.data>
        <DbProviderFactories>
            <remove invariant="IBM.Data.DB2.Core" />
            <add name="DB2 Data Provider" invariant="IBM.Data.DB2.Core" description=".Net Framework Data Provider for DB2" type="IBM.Data.DB2.Core.DB2Factory, IBM.Data.DB2.Core" />
        </DbProviderFactories>
    </system.data>

</configuration>

在研究IBM程序集时，我发现有一个名为DB2Factory的DbProviderFactory实现类.如果app.config文件配置了system.data部分，则可以使用该类代替提供者名称.

Exploring the IBM assembly, I discovered there was a DbProviderFactory implementation class called DB2Factory. That class can be used instead a provider name if the app.config file is configured with a system.data section as shown above.

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