所请求的数据库未在配置中定义

我正在开发的一个应用程序使用Microsoft Practices Enterprise来处理数据库交互。

这一切都很好，但在某些时候它只是停止工作。我能想到的唯一一件事是，我从部署在不同机器上的另一个数据库恢复了我正在使用的数据库(由具有不同帐户的用户访问，而不是我现在使用的帐户)。

我创建了2个小测试(1个解决方案，1个项目有1个类，Program.cs)，第一个作品:

        static void test1()
        {
            // Create a connection
            SqlConnection sdwDBConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["Test"].ToString());
            // Open the connection
            sdwDBConnection.Open();
            // Create a String to hold the query.
            string query = "SELECT * FROM [TestDB].[dbo].[Test1]";
            // Create a SqlCommand object and pass the constructor the connection string and the query string.
            SqlCommand queryCommand = new SqlCommand(query, sdwDBConnection);
            // Use the above SqlCommand object to create a SqlDataReader object.
            SqlDataReader queryCommandReader = queryCommand.ExecuteReader();
            // Create a DataTable object to hold all the data returned by the query.
            DataTable dataTable = new DataTable();
            // Use the DataTable.Load(SqlDataReader) function to put the results of the query into a DataTable.
            dataTable.Load(queryCommandReader);
            // Example 1 - Print your  Column Headers
            String columns = string.Empty;
            foreach (DataColumn column in dataTable.Columns)
            {
                columns += column.ColumnName + " | ";
            }
            Console.WriteLine(columns);
            // Close the connection
            sdwDBConnection.Close();
            System.Console.Read();
        }

收益率

:

ID1 | Value1 | Value2 | Value3 |

但是第二个失败了:

        static void test2()
        {
            try
            {
                Database db = DatabaseFactory.CreateDatabase("Test");    //Line 59
                using (DbCommand cmd = db.GetSqlStringCommand("SELECT * FROM [TestDB].[dbo].[Test1]"))
                {
                    using (IDataReader reader = cmd.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            System.Console.WriteLine("{0} {1} {2}", reader.GetInt64(0)      
                            , reader.GetString(1) 
                            , reader.GetString(2));
                        }
                    }
                }
            }
            catch (Exception e)
            {
                System.Console.WriteLine(e.Message + "'n" + e.StackTrace);
            }
            finally
            {
                System.Console.Read();
            }
        }

收益率

:

The requested database Test is not defined in configuration.
   at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.EnterpriseLibraryFactory.BuildUp[T](IReadWriteLocator locator, ILifetimeContainer
 lifetimeContainer, String id, IConfigurationSource configurationSource)
   at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.EnterpriseLibraryFactory.BuildUp[T](String id, IConfigurationSource configuration
Source)
   at Microsoft.Practices.EnterpriseLibrary.Data.DatabaseFactory.CreateDatabase(String name)
   at ....Program.test2() in ...'Program.cs:line 59

这是我的app.config

<?xml version="1.0"?>
<configuration>
  <configSections>
    <section name="dataConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings, Microsoft.Practices.EnterpriseLibrary.Data, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="true" />    
  </configSections>  
  <dataConfiguration defaultDatabase="Test" />
  <connectionStrings>       
  <add name="Test" connectionString="Data Source=.'SQLEXPRESS;Initial Catalog=TestDB;Integrated Security=SSPI; Connect Timeout=120" providerName="System.Data.SqlClient" />    
  </connectionStrings>  
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0" />
  </startup>
  <system.web>
    <membership defaultProvider="ClientAuthenticationMembershipProvider">
      <providers>
        <add name="ClientAuthenticationMembershipProvider" type="System.Web.ClientServices.Providers.ClientFormsAuthenticationMembershipProvider, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" serviceUri="" />
      </providers>
    </membership>
    <roleManager defaultProvider="ClientRoleProvider" enabled="true">
      <providers>
        <add name="ClientRoleProvider" type="System.Web.ClientServices.Providers.ClientRoleProvider, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" serviceUri="" cacheTimeout="86400" />
      </providers>
    </roleManager>
  </system.web>
</configuration>

我认为如果有任何连接/配置问题，第一个也会失败。我也试过使用空构造函数，但那只是抛出了另一个异常，说String参数不能是null或空。

Database sda = DatabaseFactory.CreateDatabase("DBConnectionString");

"connectionStrings
    add name="DBConnectionString" connectionString="server=DBServerNameHere;database=DatabaseNameHere;Integrated Security=true;" providerName="System.Data.SqlClient"
  connectionStrings"