我有一些好奇的事情希望 .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）并且工作正常。
我将带有该代码的exe文件放入其中的一个目录中c:\users\public on a Windows Server 2008 R2机器，以管理员身份打开命令提示符，运行它，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");
并且在两台机器上都运行良好。
所以，我还算满意（只要我的应用程序正在运行），但是我脑子里的那个小 Gremlin 很困惑，所以我在这里问：
为什么会这样呢？
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，并替换以下内容Program.cs具有以下内容：
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将内容替换为以下内容：
<?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
I ran 过程监控器并像这样设置过滤器：
剩下的 508 个事件都是以下之一：
有人对设置什么过滤器以找到根本原因有任何建议吗？
当程序集被“阻止”（在文件属性选项卡下）时，我也有同样的行为。这些文件通过 zip 文件通过电子邮件发送给管理员。当他保存附件时，添加了块位......就像您从互联网下载文件一样。当我们清除了该块后，它工作得很好。