访问路径被拒绝 - C# Directory.Move

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【中文标题】访问路径被拒绝 - C# Directory.Move【英文标题】:Access to Path Denied - C# Directory.Move 【发布时间】:2016-12-27 21:38:42 【问题描述】:

我正在开发一个项目,该项目是解压缩文件夹,循环提取文件夹中的文件并将数据上传到数据库,然后将 zip 和文件文件夹移动到另一个目录。我在移动提取的文件夹时遇到问题。

Message "Access to the path 'Insurance_Documents\\Test_2017' is denied."    string

我最初的直觉是这是一个权限问题。但是,我检查了许可,一切看起来都很好;此外,由于程序会自行创建目录,因此将权限作为原因似乎不太合乎逻辑。

接下来,在网上浏览了一下之后,我认为我的 uploadReportData() 函数可能已经锁定了文件(它确实使用了 using 语句,但我认为可能仍然存在文件仍然存在的“滞后”锁定)。作为回应,我将 Thread.sleep 语句放入我的代码中,但没有成功。程序移动 Zip 文件夹就好了;给我带来麻烦的是“正常”目录。

程序.cs

    using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using UploadInsurance.Helpers;

namespace UploadInsurance

    class Program
    
        static void Main(string[] args)
        
            try
            
                ZipHelper.processDirectory();
            
            catch (Exception ex)
            
                Console.WriteLine(ex.Message + "\n" + ex.StackTrace);
            
            finally 
                Console.Read();

            

        
    

ZipHelper.cs(部分)

     static class ZipHelper
    
        private static String BASE_DIRECTORY = @"Insurance_Documents\";
        private static String OLD_ZIPS = @"Insurance_Documents\Old\";
        private static String EXTRACTED_FOLDERS = @"Insurance_Documents\Inserted\";

        private static List<String> zipFileList = new List<string>();


        private static void getZipFiles()
        
            zipFileList = Directory.GetFiles(BASE_DIRECTORY, "*.zip").ToList();

        

        private static void processZipFiles()
        
            String zipFolderName = "";
            String reportFolderName = "";


        foreach (String file in zipFileList)
        
           folderName = Path.GetFileNameWithoutExtension(file);
            reportFolderPath= BASE_DIRECTORY + folderName;
            ZipFile.ExtractToDirectory(file, reportFolderPath);

            uploadReportData(reportFolderPath);             
            Directory.Move(file, OLD_ZIPS + Path.GetFileName(file));
            Thread.Sleep(2000);
            Directory.Move(reportFolderPath + "//", EXTRACTED_FOLDERS + folderName);
        
    
 ... // MORE CODE HERE, INCLUDE uploadReportData function .. ///

    public static void processDirectory()
        
            ZipHelper.getZipFiles();
            ZipHelper.processZipFiles();         

        

我也尝试过改变

  Directory.Move(reportFolderPath, EXTRACTED_FOLDERS + folderName);

  Directory.Move(reportFolderPath + "//", EXTRACTED_FOLDERS + folderName);

但仍然收到错误。我尝试下载和使用 ProcessExplorer(如此处的另一个答案所述),访问该目录的唯一进程是我的程序本身。

任何帮助将不胜感激。

编辑

我为篇幅道歉,但我怀疑问题可能出在以下代码中:

 private static void uploadReportData(String folderPath)
    
        String empFile = "";
        String reportFile = "";
        String spouseFile = "";
        String childrenFile = "";
        String beneficiaryFile = "";
        String visionDependentFile = "";

        Boolean hasEmployeeFile = false;
        Boolean hasReportFile = false;

        foreach (String files in Directory.GetFiles(folderPath).ToList())
        
            if (files.Contains("employee"))
            
                hasEmployeeFile = true;
                empFile = files;
            

            if (files.Contains("report"))
            
                hasReportFile = true;
                reportFile = files;
            

            if (files.Contains("spouse"))
            
                spouseFile = files;
            

            if (files.Contains("children"))
            
                childrenFile = files;
            

            if (files.Contains("beneficiaries"))
            
                beneficiaryFile = files;
            

            if (files.Contains("vision"))
            
                visionDependentFile = files;
            

        

        String employee;
        String report;
        String vision;
        String beneficiary;
        String children;
        String spouse;
        CsvFileReader reader;
        try
        
            using (InsuranceModel dbContext = new InsuranceModel())
            
                EmployeeReportData empData = new EmployeeReportData();
                Employee emp;
                Report newReport = new Report();

                if (empFile != "")
                
                    report = reportFile;
                    employee = empFile;
                    employee.Trim();
                    reader = new CsvFileReader(employee);

                    List<String> employees = new List<string>();
                    while (reader.ReadRow(employees))  
                    String employeeID = employees[0];
                    emp = dbContext.Employees.FirstOrDefault(em => em.EmployeeID == employeeID);

                    // see if employee exists in the database
                    if (emp == null)
                    
                        emp = new Employee();
                        emp.EmployeeID = employeeID;
                        emp.SSN = employees[1];
                        emp.FirstName = employees[2];
                        emp.LastName = employees[3];
                        emp.DOB = Convert.ToDateTime(employees[4]);
                        dbContext.Employees.Add(emp);
                    

                    List<String> reportList = new List<string>();
                    reader = new CsvFileReader(report);
                    while (reader.ReadRow(reportList))  

                    newReport.Employee = emp;
                    newReport.EmployeeID = emp.EmployeeID;
                    newReport.Year = reportList[1];
                    newReport.DateSubmitted = Convert.ToDateTime(reportList[2]);
                    newReport.Action = Convert.ToInt32(reportList[3]);
                    dbContext.Reports.Add(newReport);


                    // add employees year specific data regardless

                    empData.EmployeeFirst = employees[2];
                    empData.EmployeeLast = employees[3];
                    empData.EmployeeGender = employees[5];
                    empData.EmployeeEmail = employees[6];
                    empData.EmployeeStreet = employees[7];
                    empData.EmployeeCity = employees[8];
                    empData.EmployeeState = employees[9];
                    empData.EmployeeZip = employees[10];

                    String locCode = employees[11].Trim();
                    Location loc = dbContext.Locations.First(l => l.LocationCode == locCode);
                    empData.EmployeeLocation = loc.LocationID;
                    empData.EmployeePhone = employees[12];
                    empData.InsurancePlan = Convert.ToInt32(employees[13]);
                    empData.VisionPlan = Convert.ToInt32(employees[14]);
                    empData.Status = employees[15].Trim();
                    empData.Report = newReport;

                    dbContext.EmployeeReportDatas.Add(empData);

                

                if (childrenFile != "")
                
                    children = childrenFile;

                    reader = new CsvFileReader(children);
                    List<String> childrenList = new List<string>();

                    while (reader.ReadRow(childrenList))
                    
                        ChildReportData newChild = new ChildReportData();

                        newChild.Report = newReport;
                        newChild.ChildFirst = childrenList[0];
                        newChild.ChildLast = childrenList[1];
                        newChild.ChildDOB = Convert.ToDateTime(childrenList[2]);
                        newChild.ChildGender = childrenList[3];
                        newChild.ChildStreet = childrenList[4];
                        newChild.ChildCity = childrenList[5];
                        newChild.ChildState = childrenList[6];
                        newChild.ChildZip = childrenList[7];
                        newChild.Step = childrenList[8];
                        newChild.Foster = childrenList[9];
                        newChild.Student = childrenList[10];
                        newChild.Handicap = childrenList[11];
                        newChild.ChildSSN = childrenList[12];

                        dbContext.ChildReportDatas.Add(newChild);

                        childrenList.Clear(); // clear in preparation for reading a new row

                    


                

                if (spouseFile != "")
                

                    spouse = spouseFile;
                    reader = new CsvFileReader(spouse);
                    List<String> spouseList = new List<string>();

                    while (reader.ReadRow(spouseList))  
                    SpouseReportData newSpouse = new SpouseReportData();

                    newSpouse.Report = newReport;
                    newSpouse.SpouseSSN = spouseList[0];
                    newSpouse.SpouseFirst = spouseList[1];
                    newSpouse.SpouseLast = spouseList[2];
                    newSpouse.SpouseStreet = spouseList[3];
                    newSpouse.SpouseCity = spouseList[4];
                    newSpouse.SpouseState = spouseList[5];
                    newSpouse.SpouseZip = spouseList[6];
                    newSpouse.SpouseGender = spouseList[7];
                    newSpouse.SpouseDOB = Convert.ToDateTime(spouseList[8]);
                    newSpouse.SpouseEmployed = spouseList[9];

                    dbContext.SpouseReportDatas.Add(newSpouse);



                

                if (beneficiaryFile != "")
                
                    beneficiary = beneficiaryFile;
                    reader = new CsvFileReader(beneficiary);
                    List<String> beneficiaryList = new List<string>();

                    while (reader.ReadRow(beneficiaryList))
                    
                        BeneficiaryReportData newBeneficiary = new BeneficiaryReportData();

                        newBeneficiary.Report = newReport;
                        newBeneficiary.BeneficiarySSN = beneficiaryList[0];
                        newBeneficiary.BeneficiaryFirst = beneficiaryList[1];
                        newBeneficiary.BeneficiaryLast = beneficiaryList[2];
                        newBeneficiary.BeneficiaryStreet = beneficiaryList[3];
                        newBeneficiary.BeneficiaryCity = beneficiaryList[4];
                        newBeneficiary.BeneficiaryState = beneficiaryList[5];
                        newBeneficiary.BeneficiaryZip = beneficiaryList[6];
                        newBeneficiary.BeneficiaryPercentage = Convert.ToDecimal(beneficiaryList[7]);
                        newBeneficiary.BeneficiaryRelationship = beneficiaryList[8];
                        newBeneficiary.BeneficiaryType = beneficiaryList[9];

                        dbContext.BeneficiaryReportDatas.Add(newBeneficiary);
                        beneficiaryList.Clear(); // clear in preparation for reading a new row

                    



                

                if (visionDependentFile != "")
                

                    vision = visionDependentFile;
                    reader = new CsvFileReader(vision);
                    List<String> visionList = new List<string>();

                    while (reader.ReadRow(visionList))
                    
                        VisionDependentReportData newVision = new VisionDependentReportData();

                        newVision.Report = newReport;
                        newVision.VisionSSN = visionList[0];
                        newVision.VisionFirst = visionList[1];
                        newVision.VisionLast = visionList[2];
                        newVision.VisionDOB = Convert.ToDateTime(visionList[3]);
                        newVision.VisionGender = visionList[4];
                        newVision.VisionRelationship = visionList[5];

                        dbContext.VisionDependentReportDatas.Add(newVision);
                        visionList.Clear(); // clear in preparation for reading a new row

                    

                


                dbContext.SaveChanges();

            


        

【问题讨论】:

如果您在您的帐户下运行程序,请尝试使用代码创建文件夹并在程序仍在运行时手动执行移动。如果您无法手动移动它,那么您自己的程序可能正在锁定文件或其他东西。 感谢您的建议。这确实是我的程序,但我只是不确定代码的哪一部分锁定了它。我将发布我的 uploadReportData 函数,因为我怀疑它可能是这样的。非常感谢。 通过using 使用CsvFileReader 可能是个好主意,例如using (CsvFileReader reader = new CsvFileReader(children)) ...,以确保文件句柄在using 子句之外释放。 将代码放入try catch块中,检查异常以及内部异常和堆栈跟踪! 【参考方案1】:

我的直觉是您需要关闭/处置 CsvFileReader 对象。任何文件流都将锁定,直到您释放它。

【讨论】:

你和 Alex J 完全正确。很抱歉,当答案如此明显时,我不得不问这个问题。我没有编写 CsvFileReader 类。经验教训 - 使用第三方代码时,请确保您了解如何正确使用它。这个类绝对没有问题(非常感谢提供者和所有为其他人提供此类代码的人)。我想我只是认为当“with”语句结束时它关闭/处置了它对资源的持有。再次感谢。

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