Nikola's questions

我遇到了一个程序问题，需要在多个线程上并发生成一些报告。这是一个遗留程序，代码文档不完善，执行 NUnit 测试时会报错，但在 IIS 本地或安装 IIS 的 Windows Server 上本地执行应用程序时不会报错。首先引起我注意的是下面的代码。据我了解，它应该是线程安全的，但我不能 100% 确定。

public static class Transliterator
{
    private static readonly ConcurrentDictionary<SupportedConversions, ConcurrentDictionary<char, string>> converters = new ConcurrentDictionary<SupportedConversions, ConcurrentDictionary<char, string>>
    {
            [SupportedConversions.MK_ENG] = new ConcurrentDictionary<char, string>()
            {
                  ['а'] = "a"
                , ['б'] = "b"
                , ['в'] = "v"
                , ['г'] = "g"
                , ['д'] = "d"
                , ['ѓ'] = "gj"
                , ['е'] = "e"
                , ['ж'] = "zh"
                , ['з'] = "z"
                , ['ѕ'] = "dz"
                , ['и'] = "i"
                , ['ј'] = "j"
                , ['к'] = "k"
                , ['л'] = "l"
                , ['љ'] = "lj"
                , ['м'] = "m"
                , ['н'] = "n"
                , ['њ'] = "nj"
                , ['о'] = "o"
                , ['п'] = "p"
                , ['р'] = "r"
                , ['с'] = "s"
                , ['т'] = "t"
                , ['ќ'] = "kj"
                , ['у'] = "u"
                , ['ф'] = "f"
                , ['х'] = "h"
                , ['ц'] = "c"
                , ['ч'] = "ch"
                , ['џ'] = "dzh"
                , ['ш'] = "sh"
                , ['А'] = "A"
                , ['Б'] = "B"
                , ['В'] = "V"
                , ['Г'] = "G"
                , ['Д'] = "D"
                , ['Ѓ'] = "Gj"
                , ['Е'] = "E"
                , ['Ж'] = "Zh"
                , ['З'] = "Z"
                , ['Ѕ'] = "Dz"
                , ['И'] = "I"
                , ['Ј'] = "J"
                , ['К'] = "K"
                , ['Л'] = "L"
                , ['Љ'] = "Lj"
                , ['М'] = "M"
                , ['Н'] = "N"
                , ['Њ'] = "Nj"
                , ['О'] = "O"
                , ['П'] = "P"
                , ['Р'] = "R"
                , ['С'] = "S"
                , ['Т'] = "T"
                , ['Ќ'] = "Kj"
                , ['У'] = "U"
                , ['Ф'] = "F"
                , ['Х'] = "H"
                , ['Ц'] = "C"
                , ['Ч'] = "Ch"
                , ['Џ'] = "Dzh"
                , ['Ш'] = "Sh" 
            }
    };

    public static string Transliterate(string source, SupportedConversions conversion)
    {
        ConcurrentDictionary<char, string> converter = converters[conversion];

        var result = new StringBuilder();

        foreach (char letter in source)
        {
            if (converter.TryGetValue(letter, out string convertedLetter))
            {
                result.Append(convertedLetter);
            }
            else
            {
                result.Append(letter);
            }
        }
        
        return result.ToString();
    }

    public enum SupportedConversions
    {
        MK_ENG = 0
    }
}

如何更改属于某个角色（比如说“管理员”）的用户的登录页面。更具体地说，当具有“管理员”角色的用户访问应用程序站点（ http://localhost:1234/ ）时，应将他路由到控制器“AdminController”的“Index”操作方法。当所有其他用户（不具有“管理员”角色）访问站点时，应将他们路由到控制器“HomeController”的“Index”操作方法（这由默认映射路由满足routes.MapRoute(name: "Default", url: "{controller}/{action}/{id}", defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional })）。

“管理员”角色用户不得访问除“AdminController”之外的任何其他控制器。

编辑 1：或者是否无法使用路由来执行此操作，因为尚未形成 HttpContext，并且必须在某些控制器操作方法内部进行检查（然后用户重定向）？

当您可以使用 XDocument 时，为什么要使用 xsd.exe 工具为 XSD 模式创建类，然后使用序列化器创建 XML 文件。

我是否应该始终使用XDocument并通过嵌套元素手动创建 XML 文档XElement，或者是否存在我没​​有看到的使得使用 XSD 模式更好XmlSerializer的东西。