Question

我有一个.Net标准2.0应用程序，它引用了.Net45 dll中的一些合同。我这样做的印象是，一旦这些合同对象被序列化，他们将使用.Net45程序集类型完成。使用.Net45库（这是最终目标）对这些进行去处理现在给出错误：

在JSON'System.Collections.Generic.Dictionary`2 [[System.String，System.Private.CoreLib]，[System.String，System.Private.CoreLib]]，System.Private.CoreLib中指定的错误解析类型“

这显然是因为它试图从标准程序集类型而不是从mscorlib解析字符串类型。有没有办法实现我的尝试？

Answer 1

有很多方法可以解决这个问题。

对于无法轻松转换为自定义ISerializationBinder的大型代码库我已经实现了重定向（虽然不漂亮，但是可以正常工作）

RedirectAssembly("System.Private.CoreLib", "mscorlib");

public static void RedirectAssembly(string fromAssemblyShotName, string replacmentAssemblyShortName)
{
    Console.WriteLine($"Adding custom resolver redirect rule form:{fromAssemblyShotName}, to:{replacmentAssemblyShortName}");
    ResolveEventHandler handler = null;
    handler = (sender, args) =>
    {
        // Use latest strong name & version when trying to load SDK assemblies
        var requestedAssembly = new AssemblyName(args.Name);
        Console.WriteLine($"RedirectAssembly >  requesting:{requestedAssembly}; replacment from:{fromAssemblyShotName}, to:{replacmentAssemblyShortName}");
        if (requestedAssembly.Name == fromAssemblyShotName)
        {
            try
            {
                Console.WriteLine($"Redirecting Assembly {fromAssemblyShotName} to: {replacmentAssemblyShortName}");
                var replacmentAssembly = Assembly.Load(replacmentAssemblyShortName);
                return replacmentAssembly;
            }
            catch (Exception e)
            {
                Console.WriteLine($"ERROR while trying to provide replacement Assembly {fromAssemblyShotName} to: {replacmentAssemblyShortName}");
                Console.WriteLine(e);
                return null;
            }
        }

        Console.WriteLine($"Framework faild to find {requestedAssembly}, trying to provide replacment from:{fromAssemblyShotName}, to:{replacmentAssemblyShortName}");

        return null;
    };

    AppDomain.CurrentDomain.AssemblyResolve += handler;
}

.Net Standard 2.0 dll .Net 45序列化

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