Asp.net core 如何在linq2db中管理多个数据库

Asp.net core 如何在linq2db中管理多个数据库,asp.net-core,multiple-databases,linq2db,Asp.net Core,Multiple Databases,Linq2db,我想在我的应用程序中管理多个数据库连接。我正在使用ASP.NET Core和linq2db。对于我的第一个数据库连接,我创建了以下配置,它工作正常 public class DatabaseXSettings : ILinqToDBSettings { public IEnumerable<IDataProviderSettings> DataProviders { get { yield break; } } public stri

我想在我的应用程序中管理多个数据库连接。我正在使用ASP.NET Core和linq2db。对于我的第一个数据库连接,我创建了以下配置,它工作正常

public class DatabaseXSettings : ILinqToDBSettings
{
    public IEnumerable<IDataProviderSettings> DataProviders
    {
        get { yield break; }
    }

    public string DefaultConfiguration => "Oracle.Managed";
    public string DefaultDataProvider => "Oracle.Managed";

    public string ConnectionString { get; set; }

    public DatabaseXSettings(string connectionString)
    {
        ConnectionString = connectionString;
    }

    public IEnumerable<IConnectionStringSettings> ConnectionStrings
    {
        get
        {
            yield return
            new ConnectionStringSettings
            {
                Name = "DatabaseX",
                ProviderName = "Oracle.Managed",
                ConnectionString = ConnectionString
            };
        }
    }
}

public static class DatabaseXStartup
{
    private static bool _started;
    public static void Init(string connectionString)
    {
        if (!_started)
        {
            DataConnection.DefaultSettings = new DatabaseXSettings(connectionString);
           _started = true;
        }
    }
}

public class DatabaseX : DataConnection
{
    public DatabaseX() : base("DatabaseX") { }
}
My appsettings.json }

LinqToDB.LinqToDBException:'未定义配置'DatabaseY' 还有别的办法吗

编辑:添加了示例

您不需要两个ILinqToDBSettings实例。您应该将第二个数据库设置移动到第一个设置类,这样ConnectionString将返回两个连接字符串

public class DatabaseSettings : ILinqToDBSettings
{
    public IEnumerable<IDataProviderSettings> DataProviders
    {
        get { yield break; }
    }

    public string DefaultConfiguration => "Oracle.Managed";
    public string DefaultDataProvider => "Oracle.Managed";

    private readonly IConnectionStringSettings[] _connectionStrings;

    public DatabaseSettings(IConnectionStringSettings[] connectionStrings)
    {
        _connectionStrings = connectionStrings;
    }

    public IEnumerable<IConnectionStringSettings> ConnectionStrings => _connectionStrings;
}

public static class DatabaseSetup
{
    // just call it on application startup
    public static void Init()
    {
        // create connectionStrings collection with both connection strings from appsettings.json

        DataConnection.DefaultSettings = new DatabaseSettings(connectionStrings);
    }
}
公共类数据库设置:ILinqToDBSettings
{
公共IEnumerable数据提供程序
{
获取{yield break;}
}
公共字符串DefaultConfiguration=>“Oracle.Managed”;
公共字符串DefaultDataProvider=>“Oracle.Managed”;
专用只读IConnectionStringSettings[]\u连接字符串;
公共数据库设置(IConnectionStringSettings[]连接字符串)
{
_ConnectionString=ConnectionString;
}
public IEnumerable connectionString=>\u connectionString;
}
公共静态类数据库设置
{
//只需在应用程序启动时调用它
公共静态void Init()
{
//使用appsettings.json中的两个连接字符串创建ConnectionString集合
DataConnection.DefaultSettings=新数据库设置(ConnectionString);
}
}

您能解释一下吗。我已经试过了,但没用。
  {
"Logging": {
    "LogLevel": {
        "Default": "Warning"
    }
},
"AllowedHosts": "*",
"ConnectionStrings": {
    "DatabaseX": "Data Source=..........",
    "DatabaseY": "Data Source=.........."
}
public class DatabaseSettings : ILinqToDBSettings
{
    public IEnumerable<IDataProviderSettings> DataProviders
    {
        get { yield break; }
    }

    public string DefaultConfiguration => "Oracle.Managed";
    public string DefaultDataProvider => "Oracle.Managed";

    private readonly IConnectionStringSettings[] _connectionStrings;

    public DatabaseSettings(IConnectionStringSettings[] connectionStrings)
    {
        _connectionStrings = connectionStrings;
    }

    public IEnumerable<IConnectionStringSettings> ConnectionStrings => _connectionStrings;
}

public static class DatabaseSetup
{
    // just call it on application startup
    public static void Init()
    {
        // create connectionStrings collection with both connection strings from appsettings.json

        DataConnection.DefaultSettings = new DatabaseSettings(connectionStrings);
    }
}