WinRM服务无法处理该请求.具有客户端指定的命令ID的命令已存在

本文关键字：命令 ID 存在 客户端 服务 处理 请求 WinRM | 更新日期: 2023-09-27 17:59:16

当我在Visual Studio 2015中调试时运行下面的代码时，它运行得很好。当它被部署到IIS时，我在第二行ps.Invoke()处得到以下错误：

WinRM服务无法处理该请求。命令已存在使用客户端指定的命令ID。

public static PowerShellResponse AddToDistributionGroup(Credentials creds, string groupName, string memberEmail)
{
    PSCredential cred = new PSCredential(creds.Username, creds.Password.ToSecureString());
    WSManConnectionInfo connectionInfo = new WSManConnectionInfo(new Uri(Settings.ExchangeServerAutomationUrl), Settings.ExchangeAutomationSchemaName, cred);
    connectionInfo.AuthenticationMechanism = AuthenticationMechanism.Kerberos;
    using (Runspace runspace = RunspaceFactory.CreateRunspace(connectionInfo))
    {
        using (PowerShell ps = PowerShell.Create())
        {
            runspace.Open();
            ps.Runspace = runspace;
            //can't pipe OU to Add-DistrubtionGroupMember b/c it blows up w/ "null reference exception" when member already exists
            var group =
                    ps
                        .AddCommand("Get-DistributionGroup")
                            .AddParameter("Identity", groupName)
                            .AddParameter("OrganizationalUnit", creds.GetUserDN())
                        .Invoke()
                        .SingleOrDefault();
            if (group == null)
                return new PowerShellResponse() { Errors = new List<string> { "Group not found." } };
            ps.AddStatement();
            ps.AddCommand("Add-DistributionGroupMember")
                .AddParameter("Identity", ((dynamic)group).Identity)
                .AddParameter("Member", memberEmail);
            ps.Invoke(); //this is where the error shows up
            return ps.GetResponse();
        }
    }
}

我正在连接Exchange（API文档：https://technet.microsoft.com/en-us/library/dn641234（v=exchg.160）.aspx）使用C#和PowerShell 3.0尝试向Exchange中的通讯组添加成员。

PowerShellResponse是我们的自定义类，ps.GetResponse()是创建所述PowerShellResponse的自定义函数。

WinRM服务无法处理该请求.具有客户端指定的命令ID的命令已存在

由于无法在任何地方找到在线讨论的错误，我提出的解决方案不是在一个using语句中调用ps.Invoke()两次。以下内容在本地和部署到IIS后都运行良好：

public static PowerShellResponse AddToDistributionGroup(Credentials creds, string groupName, string memberEmail)
{
    PSCredential cred = new PSCredential(creds.Username, creds.Password.ToSecureString());
    WSManConnectionInfo connectionInfo = new WSManConnectionInfo(new Uri(Settings.ExchangeServerAutomationUrl), Settings.ExchangeAutomationSchemaName, cred);
    connectionInfo.AuthenticationMechanism = AuthenticationMechanism.Kerberos;
    PSObject group;
    using (Runspace runspace = RunspaceFactory.CreateRunspace(connectionInfo))
    {
        using (PowerShell ps = PowerShell.Create())
        {
            runspace.Open();
            ps.Runspace = runspace;
            group =
                    ps
                        .AddCommand("Get-DistributionGroup")
                            .AddParameter("Identity", groupName)
                            .AddParameter("OrganizationalUnit", creds.GetUserDN())
                        .Invoke()
                        .SingleOrDefault();
        }
    }
    //can't pipe OU to Add-DistrubtionGroupMember b/c it blows up w/ "null reference exception" when member already exists
    if (group == null)
        return new PowerShellResponse() { Errors = new List<string> { "Group not found." } };
    using (Runspace runspace = RunspaceFactory.CreateRunspace(connectionInfo))
    {
        using (PowerShell ps = PowerShell.Create())
        {
            runspace.Open();
            ps.Runspace = runspace;
            ps.AddCommand("Add-DistributionGroupMember")
                .AddParameter("Identity", ((dynamic)group).Identity)
                .AddParameter("Member", memberEmail);
            ps.Invoke();
            return ps.GetResponse();
        }
    }
}
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