WMI远程连接，失败[关闭]

1 回答

• 2

  自己想出来：

  一定要检查防火墙和WMI设置......

  好吧，检查连接是否成功的一种方法是：

  ManagementScope myscope = new ManagementScope(@"\\Server\Username", ConnectionOptions);
  
  if (myscope.IsConnected) { MessageBox.Show("Connected"); } else { MessageBox.Show("Disconnected"); }
  

  现在您知道您的连接是否有效，然后只需搜索标准查询即可将其与您自己的代码进行比较...

  示例：example on msdn

  完成代码：

  using System;
  using System.Collections.Generic;
  using System.ComponentModel;
  using System.Data;
  using System.Drawing;
  using System.Linq;
  using System.Text;
  using System.Threading.Tasks;
  using System.Windows.Forms;
  using System.Threading;
  using System.Management;
  using System.Diagnostics;
  
  namespace Admin_Helper
  {
  public partial class frmRemoteInformation : Form
  {
      public frmRemoteInformation()
      {
          InitializeComponent();
      }
  
      string strServername;
      string strUsername;
      string strPassword;
      string strClassSelection;
      ConnectionOptions rcOptions;
      ManagementObjectCollection moCollection;
      ObjectQuery oQuery;
      ManagementObjectSearcher moSearcher;
      ManagementScope mScope;
  
      private void frmRemoteInformation_Load(object sender, EventArgs e)
      {
          if (mScope.IsConnected == true) { lblConnectionStateWarning.Text = "Connected"; } else { lblConnectionStateWarning.Text = "Disconnected"; } //I have a label that displays connectionstate, you can leave that out
      }
  
      private void btnConnect_Click(object sender, EventArgs e)
      {
          try
          {
              strServername = txtServer.Text;
              strUsername = txtUsername.Text;
              strPassword = txtPassword.Text;
  
              remoteConnection(strServername, strUsername, strPassword);
          }
          catch (Exception ex) { MessageBox.Show(ex.Message); }
  
      }
  
      private void cmbClassSelection_SelectedIndexChanged(object sender, EventArgs e)
      {
              var dctPropertyList = new Dictionary<string, string>();
              strClassSelection = cmbClassSelection.SelectedItem.ToString();
              new Thread(() => FindWMI(strServername, strClassSelection, rcOptions, dctPropertyList, lstProperties)).Start();
      }
  
      private void remoteConnection(string servername, string username, string password)
      {
          try
          {
              rcOptions = new ConnectionOptions();
              rcOptions.Authentication = AuthenticationLevel.Packet;
              rcOptions.Impersonation = ImpersonationLevel.Impersonate;
              rcOptions.EnablePrivileges = true;
              rcOptions.Username = servername + @"\" + username;
              rcOptions.Password = password;
  
              mScope = new ManagementScope(String.Format(@"\\{0}\root\cimv2", servername), rcOptions);
              mScope.Connect();
              if (mScope.IsConnected == true) { MessageBox.Show("Connection Succeeded", "Alert"); } else { MessageBox.Show("Connection Failed", "Alert"); }
              if (mScope.IsConnected == true) { lblConnectionStateWarning.Text = "Connected"; } else { lblConnectionStateWarning.Text = "Disconnected"; } //I have a label that displays connectionstate, you can leave that out
  
          }
          catch (Exception ex) { MessageBox.Show(ex.Message); }
      }
  
      private void FindWMI(string servername, string classSelection, ConnectionOptions rcOptions, Dictionary<string, string> dct, ListView listView)
      {
          try
          {
              List<ListViewItem> itemsList = new List<ListViewItem>();
              oQuery = new ObjectQuery("select * from " + classSelection);
              moSearcher = new ManagementObjectSearcher(mScope, oQuery);
              moCollection = moSearcher.Get();
  
              Invoke(new MethodInvoker(() =>
              {
                  listView.Items.Clear();
              }));
  
              foreach (ManagementObject mObject in moCollection)
              {
                  if (mObject != null)
                  {
                      foreach (PropertyData propData in mObject.Properties)
                      {
                          if (propData.Value != null && propData.Value.ToString() != "" && propData.Name != null && propData.Name != "")
                              dct[propData.Name] = propData.Value.ToString();
                      }
                  }
              }
  
              foreach (KeyValuePair<string, string> listItem in dct)
              {
                  ListViewItem lstItem = new ListViewItem(listItem.Key);
                  lstItem.SubItems.Add(listItem.Value);
                  itemsList.Add(lstItem);
              }
  
              Invoke(new MethodInvoker(() =>
              {
                  listView.Items.AddRange(itemsList.ToArray());
              }));
          }
          catch (Exception) { }
      }
  
      private void frmRemoteInformation_FormClosed(object sender, FormClosedEventArgs e)
      {
          foreach (System.Diagnostics.Process myProc in System.Diagnostics.Process.GetProcesses())
          {
              if (myProc.ProcessName == "WmiPrvSE")
              {
                  myProc.Kill();
              }
          }
  
          if (mScope.IsConnected == true) { mScope.Options.Authentication = AuthenticationLevel.None; }; //Change option so that the connection closes, no disconnect option
      }
  
  }
  }
  

  回复于 2024-05-04T02:16:54+08:00