日期:2014-05-17  浏览次数:20547 次

ADO.net连接oracle问题
(1)环境
  windows7,64位,oracle11g,vs2010
(2)代码
  OracleConnection conn = new OracleConnection("Data Source=orcl;User Id=scott;Password=tiger;Integrated Security=no;");
  conn.Open();

  OracleCommand cmd = conn.CreateCommand();
  cmd.CommandText = "SELECT TNAME FROM TAB";
  Label1.Text = ((OracleString)cmd.ExecuteOracleScalar()).Value;

  cmd.Dispose();
  conn.Dispose();

(3)现象
  编译通过,如果目标平台选择:X86,则:

  “/”应用程序中的服务器错误。
--------------------------------------------

未能加载文件或程序集“WebApplication2”或它的某一个依赖项。试图加载格式不正确的程序。 
说明: 执行当前 Web 请求期间,出现未经处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。 

异常详细信息: System.BadImageFormatException: 未能加载文件或程序集“WebApplication2”或它的某一个依赖项。试图加载格式不正确的程序。

源错误: 

执行当前 Web 请求期间生成了未经处理的异常。可以使用下面的异常堆栈跟踪信息确定有关异常原因和发生位置的信息。  

程序集加载跟踪: 下列信息有助于确定程序集“WebApplication2”未能加载的原因。


警告: 程序集绑定日志记录被关闭。
要启用程序集绑定失败日志记录,请将注册表值 [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD)设置为 1。
注意: 会有一些与程序集绑定失败日志记录关联的性能损失。
要关闭此功能,请移除注册表值 [HKLM\Software\Microsoft\Fusion!EnableLog]。

 

堆栈跟踪: 


[BadImageFormatException: 未能加载文件或程序集“WebApplication2”或它的某一个依赖项。试图加载格式不正确的程序。]
  System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +0
  System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +39
  System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection, Boolean suppressSecurityChecks) +132
  System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +144
  System.Reflection.Assembly.Load(String assemblyString) +28
  System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +46

[ConfigurationErrorsException: 未能加载文件或程序集“WebApplication2”或它的某一个依赖项。试图加载格式不正确的程序。]
  System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +618
  System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +209
  System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +130
  System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +178
  System.Web.Compilation.BuildManager.GetPreStartInitMethodsFromReferencedAssemblies() +94
  System.Web.Compilation.BuildManager.CallPreStartInitMethods() +332
  System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) +677

[HttpException (0x80004005): 未能加载文件或程序集“WebApplication2”或它的某一个依赖项。试图加载格式不正确的程序。]
  System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9091196
  System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +97
  System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +258[/b][b][/b][/b]