在远程计算机WMI C#上搜索文件

时间:2012-10-23 03:07:31

标签: c# wmi wmi-query

我想在远程计算机上搜索文件。我不知道EXACT文件路径,但我知道它在C:\ Windows \ System

我的查询在WMI中是这样的

string querystr = "SELECT * FROM CIM_DataFile Where Path='C:\\Windows\\System'";
ObjectQuery query = new ObjectQuery(querystr );
ManagementObjectSearcher Searcher = new ManagementObjectSearcher(Scope, query);

我收到无效的查询错误。

查询有效吗?有没有办法指定Path Under?

1 个答案:

答案 0 :(得分:6)

您的代码中有两个问题

  1. 您必须双重转义\字符,因为这是WMI中的保留符号
  2. 路径属性不得包含驱动器。
  3. 试试这个样本

    using System;
    using System.Collections.Generic;
    using System.Management;
    using System.Text;
    
    namespace GetWMI_Info
    {
        class Program
        {
    
            static void Main(string[] args)
            {
                try
                {
                    string ComputerName = "localhost";
                    ManagementScope Scope;                
    
                    if (!ComputerName.Equals("localhost", StringComparison.OrdinalIgnoreCase)) 
                    {
                        ConnectionOptions Conn = new ConnectionOptions();
                        Conn.Username  = "";
                        Conn.Password  = "";
                        Conn.Authority = "ntlmdomain:DOMAIN";
                        Scope = new ManagementScope(String.Format("\\\\{0}\\root\\CIMV2", ComputerName), Conn);
                    }
                    else
                        Scope = new ManagementScope(String.Format("\\\\{0}\\root\\CIMV2", ComputerName), null);
    
                    Scope.Connect();
                    string Drive = "c:";
                    //look how the \ char is escaped. 
                    string Path = "\\\\Windows\\\\System32\\\\";
                    ObjectQuery Query = new ObjectQuery(string.Format("SELECT * FROM CIM_DataFile Where Drive='{0}' AND Path='{1}' ", Drive, Path));
    
                    ManagementObjectSearcher Searcher = new ManagementObjectSearcher(Scope, Query);
    
                    foreach (ManagementObject WmiObject in Searcher.Get())
                    {
                        Console.WriteLine("{0}",(string)WmiObject["Name"]);// String
                    }
                }
                catch (Exception e)
                {
                    Console.WriteLine(String.Format("Exception {0} Trace {1}",e.Message,e.StackTrace));
                }
                Console.WriteLine("Press Enter to exit");
                Console.Read();
            }
        }
    }
    
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