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  • asp.net动态加载程序集创建指定类的实例及调用指定方法

    以下类中有三个方法:

    LoadAssembly:加载指定路径的程序集
    GetInstance:根据Type动态获取实例,用泛型接到返回的类型
    ExecuteMothod:执行实例中的指定方法
        /// <summary>
        /// 继承自MarshalByRefObject表示允许跨域通信
        /// </summary>
        public class RemoteLoader : MarshalByRefObject
        {
            private Assembly _assembly;
    
            public void LoadAssembly(string assemblyFile)
            {
                try
                {
                    _assembly = Assembly.LoadFrom(assemblyFile);
                    //return _assembly;
                }
                catch (Exception ex)
                {
                    throw ex;
                }
            }
    
            public T GetInstance<T>(string typeName) where T : class
            {
                if (_assembly == null) return null;
                var type = _assembly.GetType(typeName);
                if (type == null) return null;
                return Activator.CreateInstance(type) as T;
            }
    
            public void ExecuteMothod(string typeName, string methodName)
            {
                if (_assembly == null) return;
                var type = _assembly.GetType(typeName);
                var obj = Activator.CreateInstance(type);
                Expression<Action> lambda = Expression.Lambda<Action>(Expression.Call(Expression.Constant(obj), type.GetMethod(methodName)), null);
                lambda.Compile()();
            }
        }
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  • 原文地址:https://www.cnblogs.com/yonsy/p/7070862.html
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