我有一些好奇,我希望.Net专家可以帮助我。
我有一个自定义配置部分,为了掌握它,我这样做:
var s = (TestConfigurationSection)ConfigurationManager
.GetSection("testSection");
我在我的开发机器上运行它(Windows 7
,64位,Windows完全是最新的)并且它运行正常。
我将exe代码加入,并将其放在c:\users\public
机器上的Windows Server 2008 R2
内的目录中,以管理员身份打开命令提示符,运行它然后我得到:
System.Configuration.ConfigurationErrorsException:为testSection创建配置节处理程序时发生错误:请求失败。 (C:\ Users \ Public \ configtest \ AppConfigTestConsoleApplication.exe.Config第10行)---> System.Security.SecurityException:请求失败。
现在我更改了代码来执行此操作:
var config = ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None);
var s = (TestConfigurationSection) config
.GetSection("testSection");
它在两台机器上都能正常工作。
所以,我感到中等开心(尽管我的申请工作正常)但是我头脑中的那个小Gremlin很困惑所以我在这里问:
为什么会这样?
在visual studio 2010中创建一个名为AppConfigTestConsoleApplication的新.net 4控制台应用程序项目,并将Program.cs
的内容替换为以下内容:
using System;
using System.Configuration;
namespace AppConfigTestConsoleApplication
{
public class TestConfigurationSection : ConfigurationSection
{
[ConfigurationProperty("someSetting")]
public int SomeSetting
{
get { return (int) this["someSetting"]; }
set { this["someSetting"] = value; }
}
}
internal class Program
{
private static void Main()
{
try
{
var s = (TestConfigurationSection) ConfigurationManager
.GetSection("testSection");
Console.WriteLine("First Method worked: " + s.SomeSetting);
}
catch (Exception ex)
{
Console.WriteLine("First method failed");
Console.WriteLine(ex.ToString());
if (ex.InnerException != null)
{
var eex = ex.InnerException as SecurityException;
Console.WriteLine("Action: '{0}'", eex.Action.ToString());
Console.WriteLine("Demanded: '{0}'", eex.Demanded.ToString());
Console.WriteLine("RefusedSet: '{0}'", eex.RefusedSet);
Console.WriteLine("GrantedSet: '{0}'", eex.GrantedSet);
}
try
{
var config = ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None);
var s = (TestConfigurationSection) config
.GetSection("testSection");
Console.WriteLine("Second Method worked: "
+ s.SomeSetting);
}
catch (Exception x)
{
Console.WriteLine("Even the second method failed!");
Console.WriteLine(ex.ToString());
}
}
}
}
}
然后添加应用程序配置文件并使用以下内容替换内容:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section
name="testSection"
type="AppConfigTestConsoleApplication.TestConfigurationSection, AppConfigTestConsoleApplication"
requirePermission="false"
allowDefinition="Everywhere" />
</configSections>
<testSection someSetting="10"></testSection>
</configuration>
编译并运行,这是我得到的输出:
C:\Users\Public\configtest>AppConfigTestConsoleApplication.exe
First method failed
System.Configuration.ConfigurationErrorsException: An error occurred creating the configuration section handler for testSection: Request failed. (C:\Users\Public\configtest\AppConfigTestConsoleApplication.exe.Config line 10) ---> System.Security.SecurityException: Request failed.
at System.RuntimeMethodHandle.PerformSecurityCheck(Object obj, RuntimeMethodHandleInternal method, RuntimeType parent, UInt32 invocationFlags)
at System.RuntimeMethodHandle.PerformSecurityCheck(Object obj, IRuntimeMethodInfo method, RuntimeType parent, UInt32 invocationFlags)
at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Reflection.ConstructorInfo.Invoke(Object[] parameters)
at System.Configuration.TypeUtil.InvokeCtorWithReflectionPermission(ConstructorInfo ctor)
at System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory.CreateSectionImpl(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentConfig, ConfigXmlReader reader)
at System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory.CreateSectionWithRestrictedPermissions(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentConfig, ConfigXmlReader reader)
at System.Configuration.RuntimeConfigurationRecord.CreateSection(Boolean inputIsTrusted, FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentConfig, ConfigXmlReader reader)
at System.Configuration.BaseConfigurationRecord.CallCreateSection(Boolean inputIsTrusted, FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentConfig, ConfigXmlReader reader, String filename, Int32 line)
--- End of inner exception stack trace ---
at System.Configuration.BaseConfigurationRecord.EvaluateOne(String[] keys, SectionInput input, Boolean isTrusted, FactoryRecord factoryRecord, SectionRecordsectionRecord, Object parentResult)
at System.Configuration.BaseConfigurationRecord.Evaluate(FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentResult, Boolean getLkg, Boolean getRuntimeObject, Object& result, Object& resultRuntimeObject)
at System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject)
at System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject)
at System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject)
at System.Configuration.BaseConfigurationRecord.GetSection(String configKey)
at System.Configuration.ClientConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection(String sectionName)
at System.Configuration.ConfigurationManager.GetSection(String sectionName)
at AppConfigTestConsoleApplication.Program.Main()
Action: 'Demand'
Demanded: '<PermissionSet class="System.Security.PermissionSet"
version="1"
Unrestricted="true"/>
'
RefusedSet: ''
GrantedSet: ''
Second Method worked: 10
我跑了Process Monitor并设置过滤器,如下所示:
这留下了508个事件,它们都是:
是否有人对可以设置哪些过滤器以获得根本原因有任何建议?
答案 0 :(得分:10)
当程序集被“阻止”时(在文件属性选项卡下),我有同样的行为。这些文件通过zip通过电子邮件发送给管理员。当他保存了附件时,块位被添加......就像从互联网上下载文件一样。清除块后,它工作正常。
答案 1 :(得分:6)
ConfigurationManager.GetSection(String)
:检索通过合并应用程序配置文件,本地用户配置文件和漫游配置文件获得的配置文件。
ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel)
:userLevel参数通过指示是否没有用户级别(配置文件与应用程序位于同一目录中)来确定要打开的配置文件的位置
所以,他们正在打开不同的文件。查看使用ProcessMonitor查看正在访问的文件以及发生异常的原因以及文件。
答案 2 :(得分:0)
我知道这是一个旧帖子,但我最近在与客户合作时遇到了这个问题,并且认为我发布了另一个建议。在我的情况下,问题是使用非静态ConfigurationManager方法,该方法可能在某些特定条件下导致SecurityException(应用程序以.NET Framework 4为目标并安装在网络驱动器上,在这种情况下也禁用Windows Update)。以下是有关该问题的更多信息以及Microsoft的修补程序: