添加项目文件。
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Reflection;
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using System.Text.RegularExpressions;
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namespace MAX.Core.Reflections;
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public partial class AppTypeFinder : Finder
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{
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public static AppTypeFinder Instance { get; } = new AppTypeFinder();
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/// <summary>
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/// 所有程序集
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/// </summary>
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public static List<Assembly> Assemblies => Instance.GetAssemblies();
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public static Exception LoadDLL(string dllPath, out Assembly assembly)
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{
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return Instance.LoadAssemblyToAppDomain(dllPath, out assembly);
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}
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/// <summary>
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/// 程序集是否匹配
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/// </summary>
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protected override bool Match(string assemblyName)
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{
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if (base.Match(assemblyName))
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{
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if (AvailablePrefix().Exists(assemblyName.StartsWith))
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{
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return true;
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}
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return Regex.IsMatch(assemblyName, "^(MAX\\.)", RegexOptions.IgnoreCase | RegexOptions.Compiled);
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}
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return false;
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}
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protected virtual List<string> AvailablePrefix()
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{
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return ["MAX."];
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}
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public static IEnumerable<Type> GetAllTypes()
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{
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List<Type> types = [];
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foreach (Assembly item in Assemblies)
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{
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try
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{
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types.AddRange(item.GetTypes());
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}
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catch
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{
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}
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}
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return types;
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}
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/// <summary>
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/// 查找当前程序集中所有继承或实现了指定类型的非抽象类。
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/// </summary>
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/// <param name="targetType">
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/// 要匹配的目标类型，可以是：
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/// <list type="bullet">
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/// <item><description>普通接口类型（例如 <c>IMyService</c>）</description></item>
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/// <item><description>开放泛型接口类型（例如 <c>IRepository<></c>）</description></item>
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/// <item><description>普通基类类型（例如 <c>BaseHandler</c>）</description></item>
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/// <item><description>开放泛型基类类型（例如 <c>BaseHandler<></c>）</description></item>
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/// </list>
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/// </param>
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/// <returns>
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/// 所有满足条件的具体类（非抽象类）的 <see cref="Type"/> 数组。
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/// </returns>
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/// <exception cref="ArgumentNullException">
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/// 当 <paramref name="targetType"/> 为 <c>null</c> 时抛出。
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/// </exception>
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/// <remarks>
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/// <para>
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/// 此方法会遍历 <c>GetAllTypes()</c> 返回的所有类型，并筛选出：
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/// <list type="bullet">
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/// <item><description>实现了指定接口的类（包括开放泛型接口的封闭实现）</description></item>
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/// <item><description>继承了指定基类的类（包括开放泛型基类的封闭实现）</description></item>
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/// </list>
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/// </para>
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/// <para>示例：</para>
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/// <code>
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/// // 查找所有实现了 IEnumDisplayHandler<T> 的类
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/// var handlers = FindAllDerivedTypes(typeof(IEnumDisplayHandler<>));
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///
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/// // 查找所有实现了 IMyService 的类
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/// var services = FindAllDerivedTypes(typeof(IMyService));
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///
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/// // 查找所有继承 BaseHandler 的类
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/// var subclasses = FindAllDerivedTypes(typeof(BaseHandler));
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///
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/// // 查找所有继承开放泛型基类 BaseHandler<T> 的类
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/// var genericSubclasses = FindAllDerivedTypes(typeof(BaseHandler<>));
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/// </code>
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/// </remarks>
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public static Type[] FindAllDerivedTypes(Type targetType)
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{
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if (targetType == null)
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{
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throw new ArgumentNullException(nameof(targetType));
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}
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return GetAllTypes().Where(t =>
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{
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try
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{
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if (!t.IsClass || t.IsAbstract)
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{
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return false;
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}
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// 开放泛型接口
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if (targetType.IsInterface && targetType.IsGenericTypeDefinition)
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{
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return t.GetInterfaces().Any(i =>
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i.IsGenericType && i.GetGenericTypeDefinition() == targetType);
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}
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// 普通接口
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if (targetType.IsInterface)
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{
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return targetType.IsAssignableFrom(t);
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}
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// 开放泛型基类
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if (targetType.IsGenericTypeDefinition)
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{
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return IsSubclassOfRawGeneric(t, targetType);
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}
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// 普通基类
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return targetType.IsAssignableFrom(t) && t != targetType;
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}
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catch
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{
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return false;
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}
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})
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.ToArray();
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}
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/// <summary>
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/// 检查指定类型是否继承自某个开放泛型基类。
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/// </summary>
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/// <param name="type">要检查的类型。</param>
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/// <param name="generic">开放泛型基类类型，例如 <c>BaseHandler<></c>。</param>
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/// <returns>
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/// 如果 <paramref name="type"/> 的继承链中存在指定的开放泛型基类，则返回 <c>true</c>；否则返回 <c>false</c>。
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/// </returns>
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/// <remarks>
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/// 此方法会沿着 <paramref name="type"/> 的继承链向上遍历，
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/// 并在每一级检查是否为指定的开放泛型基类定义。
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/// </remarks>
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private static bool IsSubclassOfRawGeneric(Type type, Type generic)
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{
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while (type != null && type != typeof(object))
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{
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Type cur = type.IsGenericType ? type.GetGenericTypeDefinition() : type;
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if (generic == cur)
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{
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return true;
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}
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type = type.BaseType;
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}
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return false;
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}
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/// <summary>
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/// 泛型包装方法，查找所有继承或实现了指定类型 <typeparamref name="T"/> 的非抽象类。
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/// </summary>
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/// <typeparam name="T">
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/// 目标类型，可以是接口、开放泛型接口、基类或开放泛型基类。
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/// </typeparam>
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/// <returns>
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/// 所有满足条件的具体类（非抽象类）的 <see cref="Type"/> 数组。
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/// </returns>
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/// <remarks>
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/// 调用示例：
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/// <code>
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/// var handlers = FindAllDerivedTypes<IEnumDisplayHandler<>>();
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/// var services = FindAllDerivedTypes<IMyService>();
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/// var subclasses = FindAllDerivedTypes<BaseHandler>();
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/// var genericSubclasses = FindAllDerivedTypes<BaseHandler<>>();
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/// </code>
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/// </remarks>
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public static Type[] FindAllDerivedTypes<T>() => FindAllDerivedTypes(typeof(T));
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}
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@@ -0,0 +1,129 @@
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using MAX.Core.Helpers;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Text.RegularExpressions;
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namespace MAX.Core.Reflections;
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public class Finder
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{
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/// <summary>
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/// 跳过的程序集
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/// </summary>
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private const string SkipAssemblies = "^System|^Microsoft|^mscorlib|^netstandard|^Autofac|^AutoMapper|^EntityFramework|^Newtonsoft|^Castle|^NLog|^Pomelo|^AspectCore|^Xunit|^Nito|^Npgsql|^Exceptionless|^MySqlConnector|^Anonymously|^libuv|^api-ms|^clrcompression|^clretwrc|^clrjit|^coreclr|^dbgshim|^e_sqlite3|^hostfxr|^hostpolicy|^MessagePack|^mscordaccore|^mscordbi|^mscorrc|^sni|^sos|^SOS\\.NETCore|^sos_amd64|^SQLitePCLRaw|^StackExchange|^Swashbuckle|^WindowsBase|^ucrtbase|^DotNetCore\\.CAP|^MongoDB|^Confluent\\.Kafka|^librdkafka|^EasyCaching|^RabbitMQ|^Consul|^Dapper|^EnyimMemcachedCore|^Pipelines|^DnsClient|^IdentityModel|^zlib|^Runtime\\.|^Google|^Grpc|^Internal\\.|^Azure|^DevExpress\\.|^FreeSql\\.|^PresentationFramework|^PresentationCore|^Prism|^DirectWriteForwarder|^MAX\\.Common|^ReflectionHelperTypesPublicWrappers|^UIAutomation|^WindowsFormsIntegration";
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/// <summary>
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/// 获取程序集列表
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/// </summary>
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public virtual List<Assembly> GetAssemblies()
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{
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LoadAssemblies(AppDomain.CurrentDomain.BaseDirectory);
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return GetAssembliesFromCurrentAppDomain();
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}
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/// <summary>
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/// 加载程序集到当前应用程序域
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/// </summary>
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/// <param name="path">目录绝对路径</param>
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protected void LoadAssemblies(string path)
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{
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foreach (string file in Directory.GetFiles(path, "*.dll"))
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{
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if (Match(Path.GetFileName(file)) == false)
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{
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continue;
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}
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LoadAssemblyToAppDomain(file, out _);
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}
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}
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/// <summary>
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/// 程序集是否匹配
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/// </summary>
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protected virtual bool Match(string assemblyName)
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{
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return Regex.IsMatch(assemblyName, SkipAssemblies, RegexOptions.IgnoreCase | RegexOptions.Compiled) == false;
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}
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/// <summary>
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/// 将程序集添加当前应用程序域
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/// </summary>
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protected Exception LoadAssemblyToAppDomain(string file, out Assembly assembly)
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{
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try
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{
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//Debug.WriteLine($"Load Assembly : {Path.GetFileName(file)}");
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AssemblyName assemblyName = AssemblyName.GetAssemblyName(file);
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assembly = AppDomain.CurrentDomain.Load(assemblyName);
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return null;
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}
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catch (FileNotFoundException)
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{
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// 如果找不到文件，回退到 LoadFrom 方式
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try
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{
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assembly = Assembly.LoadFrom(file);
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return null;
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}
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catch (Exception ex)
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{
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assembly = null;
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return ex;
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}
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}
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catch (Exception ex)
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{
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assembly = null;
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return ex;
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}
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}
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/// <summary>
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/// 从当前应用程序域获取程序集列表
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/// </summary>
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private List<Assembly> GetAssembliesFromCurrentAppDomain()
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{
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List<Assembly> result = [];
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foreach (Assembly assembly in AppDomain.CurrentDomain.GetAssemblies())
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{
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if (Match(assembly))
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{
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result.Add(assembly);
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}
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}
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return result.Distinct().ToList();
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}
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/// <summary>
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/// 程序集是否匹配
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/// </summary>
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private bool Match(Assembly assembly)
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{
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return !Regex.IsMatch(assembly.FullName, SkipAssemblies, RegexOptions.IgnoreCase | RegexOptions.Compiled);
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}
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/// <summary>
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/// 查找类型列表
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/// </summary>
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/// <typeparam name="T">查找类型</typeparam>
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/// <param name="assemblies">在指定的程序集列表中查找</param>
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public List<Type> Find<T>(List<Assembly> assemblies = null)
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{
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return Find(typeof(T), assemblies);
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}
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/// <summary>
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/// 查找类型列表
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/// </summary>
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/// <param name="findType">查找类型</param>
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/// <param name="assemblies">在指定的程序集列表中查找</param>
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public List<Type> Find(Type findType, List<Assembly> assemblies = null)
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{
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assemblies ??= GetAssemblies();
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return ReflectionHelper.FindTypes(findType, assemblies.ToArray());
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}
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}
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