Question

我正在c＃编码程序中执行以下命令。但是在本地执行和通过远程执行功能时，它的行为有所不同。

在本地执行的代码：

        using (var ps = PowerShell.Create(RunspaceMode.NewRunspace))
        {
            ps.AddCommand("Get-IISAppPool")
              .AddParameter("Name", "MyCustomAppPool");
            var results = ps.Invoke();

            var appPool = results.FirstOrDefault();
            var processModel = PSObject.AsPSObject(appPool.Properties["ProcessModel"].Value);
            var userName = processModel.Properties["UserName"].Value;
            Console.WriteLine(username);
        }

用于远程执行的代码：

        using (var ps = PowerShell.Create(RunspaceMode.NewRunspace))
        {
            ps.Runspace = RunspaceFactory.CreateRunspace(new WSManConnectionInfo(new Uri("http://localhost:5985/wsman")));
            ps.Runspace.Open();

            ps.AddCommand("Get-IISAppPool")
              .AddParameter("Name", "MyCustomAppPool");
            var results = ps.Invoke();

            var appPool = results.FirstOrDefault();
            var processModel = PSObject.AsPSObject(appPool.Properties["ProcessModel"].Value);
            //The following line throws NullReferenceException ...
            var userName = processModel.Properties["UserName"].Value;
            Console.WriteLine(username);
        }

第一个代码示例执行得很好。但是，在第二个中，我得到了NullReferenceExcepiton。原因是；

appPool.Properties["ProcessModel"].Value

在第一种情况下，以上代码返回类型为Microsoft.Web.Administration.ApplicationPoolProcessModel的对象，但是在第二种情况下，以上代码返回字符串值“ Microsoft.Web.Administration.ApplicationPoolProcessModel”。

真的很奇怪，但是当我执行以下脚本时，它运行正常

        using (var ps = PowerShell.Create(RunspaceMode.NewRunspace))
        {
            ps.Runspace = RunspaceFactory.CreateRunspace(new WSManConnectionInfo(new Uri("http://localhost:5985/wsman")));
            ps.Runspace.Open();

            ps.AddScript(@"$sss = Get-IISAppPool -Name MyCustomAppPool
            Export-Clixml -inputobject $sss -literalpath C:\mycustomapppool.xml
            $sss = Import-clixml -literalpath C:\mycustomapppool.xml
            return $sss");
            var results = ps.Invoke();

            var appPool = results.FirstOrDefault();
            var processModel = PSObject.AsPSObject(appPool.Properties["ProcessModel"].Value);
            //The following line throws NullReferenceException ...
            var userName = processModel.Properties["UserName"].Value;
            Console.WriteLine(username);
        }

那么，这是什么问题？你能帮忙吗？看起来反序列化有问题。

无法通过以C＃代码执行的命令访问PSObject的属性

0 个答案: