在 x64 上使用 WMI 创建 SQL Server 别名

Question

我有一个小应用程序，它会自动为某些服务器创建必要的 SQL Server 别名条目。大部分代码如下所示：

        private static void SetAlias(string aliasName, string server, string protocol, int? port)
        {
            var scope = new ManagementScope(@"\\.\root\Microsoft\SqlServer\ComputerManagement10");
            try
            {
                scope.Connect();

            }
            catch
            {
                scope = new ManagementScope(@"\\.\root\Microsoft\SqlServer\ComputerManagement");
            }
            var clientAlias = new ManagementClass(scope, new ManagementPath("SqlServerAlias"), null);
            clientAlias.Get();

            foreach (ManagementObject existingAlias in clientAlias.GetInstances())
            {
                existingAlias.Get();
                if (String.Equals((String)existingAlias.GetPropertyValue("AliasName"), aliasName))
                {
                    UpdateAlias(existingAlias, aliasName, server, protocol, port);
                    return;
                }
            }

            // create new
            ManagementObject newAlias = clientAlias.CreateInstance();
            UpdateAlias(newAlias, aliasName, server, protocol, port);
            newAlias.Put();
        }

        private static void UpdateAlias(ManagementObject alias, string aliasName, string server, string protocol, int? port)
        {
            alias.SetPropertyValue("AliasName", aliasName);
            alias.SetPropertyValue("ServerName", server);
            alias.SetPropertyValue("ProtocolName", protocol);
            alias.SetPropertyValue("ConnectionString", port != null ? port.ToString() : string.Empty);
        }

这会在 32 位操作系统上正确创建我想要的条目，但是在 x64 操作系统上，我还需要将别名添加到 64 位 SQL Server 客户端配置中。

任何想法如何做到这一点？

谢谢。

Answer 1

我将保留注册表答案，因为它是可行的，但您可以使用 ConnectionOptions 上的上下文来指定拱门（一个 int、32 或 64）

从 64 位访问两者的示例：

    static void Main(string[] args)
    {
        var options = new ConnectionOptions();

        if (Environment.Is64BitOperatingSystem && Environment.Is64BitProcess == false)
        {
            Console.WriteLine("Please build as AnyCPU or x64");
            return;
        }

        // default behavior, should be 64-bit WMI provider
        Console.WriteLine("Print 64-bit aliases");
        PrintAliases(options);

        // specify the 32-bit arch
        Console.WriteLine("Print 32-bit aliases");
        options.Context.Add("__ProviderArchitecture", 32);
        PrintAliases(options);
    }

    private static void PrintAliases(ConnectionOptions options)
    {
        var scope = new ManagementScope(@"\\.\root\Microsoft\SqlServer\ComputerManagement10", options);
        try
        {
            scope.Connect();
        }
        catch
        {
            scope = new ManagementScope(@"\\.\root\Microsoft\SqlServer\ComputerManagement");
        }
        var clientAlias = new ManagementClass(scope, new ManagementPath("SqlServerAlias"), null);
        clientAlias.Get();

        foreach (ManagementObject existingAlias in clientAlias.GetInstances())
        {
            existingAlias.Get();
            var propertiesToRead = new[] { "AliasName", "ServerName", "ProtocolName", "ConnectionString" };
            foreach (var propertyToRead  in propertiesToRead)
            {
                Console.WriteLine("Property {0} = {1}", propertyToRead, existingAlias.GetPropertyValue(propertyToRead));
            }
        }
    }

从 32 位访问两者的示例（注意：当然，无论进程位数如何，都可以将拱门强制为 32 和 64）

class Program
{
    static void Main(string[] args)
    {
        var options = new ConnectionOptions();

        if (Environment.Is64BitProcess)
        {
            Console.WriteLine("Please run this sample as 32-bit");
            return;
        }

        // default behavior, should be 32-bit WMI provider since we build as x86
        Console.WriteLine("Print 32-bit aliases");
        PrintAliases(options);

        // also prints 32-bit aliases
        options.Context.Add("__ProviderArchitecture", 32);
        PrintAliases(options);

        // specify the 64-bit arch
        if (Environment.Is64BitOperatingSystem)
        {
            Console.WriteLine("Print 64-bit aliases");
            options.Context.Add("__ProviderArchitecture", 64);
            PrintAliases(options);
        }
    }

    private static void PrintAliases(ConnectionOptions options)
    {
        var scope = new ManagementScope(@"\\.\root\Microsoft\SqlServer\ComputerManagement10", options);
        try
        {
            scope.Connect();
        }
        catch
        {
            scope = new ManagementScope(@"\\.\root\Microsoft\SqlServer\ComputerManagement");
        }
        var clientAlias = new ManagementClass(scope, new ManagementPath("SqlServerAlias"), null);
        clientAlias.Get();

        foreach (ManagementObject existingAlias in clientAlias.GetInstances())
        {
            existingAlias.Get();
            var propertiesToRead = new[] { "AliasName", "ServerName", "ProtocolName", "ConnectionString" };
            foreach (var propertyToRead  in propertiesToRead)
            {
                Console.WriteLine("Property {0} = {1}", propertyToRead, existingAlias.GetPropertyValue(propertyToRead));
            }
        }
    }

Answer 2

当我上次查看时，客户端别名只是保留在注册表中 (HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSSQLServer\Client\ConnectTo)，因此最简单的方法是写入两个 WoW (HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node \Microsoft\MSSQLServer\Client\ConnectTo) 和在 x64 上运行时的“正常”位置。请注意，如果您作为 32 位进程运行，则在编写 64 位版本时，您需要 p/invoke 或（如果在 .net 4 上）指定 64 位视图。