Question

我正在创建一个Windows服务，它测试是否可以执行预定作业，然后启动后台工作程序来执行作业。

在Windows服务的主线程中，我从与Windows服务可执行文件位于同一目录中的程序集创建数据访问层（DAL）对象。这很有效。

在后台worker中，我也尝试创建同一个对象的新实例。看起来这是成功的。 DAL中的方法从程序集加载SQL文件，然后针对给定数据库执行。

在此过程中某处我收到以下错误：

 System.IO.FileLoadException: Could not load file or assembly 'file:///C:\Windows\system32\DataConnector.dll' or one of its dependencies. The system cannot find the file specified.
    File name: 'file:///C:\Windows\system32\DataConnector.dll'
       at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.InternalLoadFrom(String assemblyFile, Evidence securityEvidence, Byte[] hashValue, AssemblyHashAlgorithm hashAlgorithm, Boolean forIntrospection, Boolean suppressSecurityChecks, StackCrawlMark& stackMark)
   at System.Reflection.Assembly.LoadFrom(String assemblyFile)
   at DataConnector.DatabaseConnector.UpdateDatabase()

我不知道为什么后台工作者试图查看C：\ windows \ system32 \目录。

Answer 1

这可能会解决问题：

System.IO.Directory.SetCurrentDirectory(System.AppDomain.CurrentDomain.BaseDirectory);

与后台工作程序的Windows服务无法加载文件或程序集错误

1 个答案: