Question

我写了一个测试程序来监控我的Picture文件夹，该文件夹指向同一用户的c：\ users [用户名] \图片和临时互联网文件文件夹。如果我将文件夹更改为其他位置，例如d：\ persona_pics，这个程序可以正常工作。当我将上述文件夹设置为监视时，不知道为什么没有引发事件？

这是代码。

class Program
    {
        static void Main(string[] args)
        {
            //FileSystemWatcher myJpegFileWatcher = new FileSystemWatcher(@"C:\Users\[username]\AppData\Local\Microsoft\Windows\Temporary Internet Files\low\content.ie5\"); 
            FileSystemWatcher myJpegFileWatcher = new FileSystemWatcher(@"C:\Users\[username]\Pictures\ "); 

            myJpegFileWatcher.Filter = "*.jpg";
            myJpegFileWatcher.Created += new FileSystemEventHandler(myJpegFileWatcher_Created);
            myJpegFileWatcher.Changed += new FileSystemEventHandler(myJpegFileWatcher_Changed);
            myJpegFileWatcher.IncludeSubdirectories = true;
            myJpegFileWatcher.NotifyFilter = NotifyFilters.CreationTime;

            myJpegFileWatcher.EnableRaisingEvents = true;

            Console.Read();

        }

        static void myJpegFileWatcher_Changed(object sender, FileSystemEventArgs e)
        {
            FileInfo duplicateFile = new FileInfo(@e.FullPath);
            bool flag = true;

            while (flag)
            {
                try
                {
                    if (duplicateFile.Length > 20000)
                    {
                        duplicateFile.CopyTo(@"d:\pics\spy\ " + e.Name);
                        flag = false;
                        StreamWriter fs = new StreamWriter(@"d:\pics\log.txt", true);
                        fs.WriteLine("file is being copied:{0}, Size={1}", e.FullPath, duplicateFile.Length);
                        fs.Close();
                    }
                    else
                    {
                        StreamWriter fs = new StreamWriter(@"d:\pics\log.txt", true);
                        fs.WriteLine("file is not being copied:{0}, Size={1}", e.FullPath, duplicateFile.Length);
                        fs.Close();
                    }
                }
                catch (Exception ex)
                {
                    //   
                }
            }

        }

        static void myJpegFileWatcher_Created(object sender, FileSystemEventArgs e)
        {
            FileInfo duplicateFile = new FileInfo(@e.FullPath);
            bool flag = true;

            while (flag)
            {
                try
                {
                    if (duplicateFile.Length > 20000)
                    {
                        duplicateFile.CopyTo(@"d:\pics\spy\ " + e.Name);
                        flag = false;
                        StreamWriter fs = new StreamWriter(@"d:\pics\log.txt", true);
                        fs.WriteLine("file is being copied:{0}, Size={1}", e.FullPath, duplicateFile.Length);
                        fs.Close();
                    }
                }
                catch (Exception ex)
                {
                    //   
                }
            }



        }
    }

工作代码..

课程计划 { static void Main（string [] args） {

        FileSystemWatcher myJpegFileWatcher = new FileSystemWatcher(@"C:\Users\[user]\Pictures\"); 

        myJpegFileWatcher.Filter = "*.jpg";

        myJpegFileWatcher.Changed += new FileSystemEventHandler(myJpegFileWatcher_Changed);

        myJpegFileWatcher.IncludeSubdirectories = true;

        myJpegFileWatcher.EnableRaisingEvents = true;

        Console.Read();

    }

    static void myJpegFileWatcher_Changed(object sender, FileSystemEventArgs e)
    {
        FileInfo duplicateFile = new FileInfo(@e.FullPath);
        bool flag = true;

        while (flag)
        {
            try
            {
                if (duplicateFile.Exists)
                {

                    if (duplicateFile.Length > 20000)
                    {
                        try
                        {
                            duplicateFile.CopyTo(@"d:\pics\spy\" + e.Name,true);
                        }
                        catch (Exception ex)
                        {
                            StreamWriter fs = new StreamWriter(@"d:\pics\log.txt", true);
                            fs.WriteLine("Error Inside copying:{0}", ex.Message);
                            fs.Close(); 
                        }
                        finally
                        {
                            flag = false;
                            StreamWriter fs = new StreamWriter(@"d:\pics\log.txt", true);
                            fs.WriteLine("file is being copied:{0}, Size={1}", e.FullPath, duplicateFile.Length);
                            fs.Close();
                        }
                    }
                    else
                    {
                        StreamWriter fs = new StreamWriter(@"d:\pics\log.txt", true);
                        fs.WriteLine("file is not being copied:{0}, Size={1}", e.FullPath, duplicateFile.Length);
                        fs.Close();
                    }
                }
            }
            catch (Exception ex)
            {
                StreamWriter fs = new StreamWriter(@"d:\pics\log.txt", true);
                fs.WriteLine("Error:{0}", ex.Message);
                fs.Close(); 
            }
        }

    }


}

Answer 1

尝试运行FileMon（通过MSDN可用的SysInternals工具）。它将向您显示您的代码在文件系统上实际执行的操作。然后，当您将代码指向“我的图片”等时，您可能能够找出原因或行为有何不同。

FileSystemWatcher不监视Vista中的本地用户文件夹或临时Internet文件夹（64位）

1 个答案: