• C#反射类型的使用


    using System;
    using System.Security.Permissions;
    using System.Text;
    using System.Reflection;
    // Download by http://www.codefans.net
    namespace UseReflection
    {
        /// <summary>
        /// 这里的特性要求程序的运行需要完全信任的安全级别
        /// </summary>
        [PermissionSetAttribute(SecurityAction.Demand, Name = "FullTrust")]
        partial class UseReflection
        {
            static void Main(string[] args)
            {
                //需要根据代码位置进行更新
                //对程序集进行遍历分析
                Assembly assembly = Assembly.LoadFrom(@"..\..\..\..\6-8 简单程序集\SimpleAssembly\bin\Debug\SimpleAssembly.exe");
                AnalyzeAssembly(assembly);

                //创建一个程序集中的类型的对象
                //这里尝试创建SimpleAssembly对象
                Console.WriteLine("利用反射创建类型");
                String[] pars={"测试反射"};
                Object o = assembly.CreateInstance(assembly.GetModules()[0].GetTypes()[0].ToString(),
                    true, BindingFlags.CreateInstance, null, pars, null, null);
                Console.WriteLine(o);
                Console.Read();
            }
        }
        partial class UseReflection
        {
            /// <summary>
            /// 对一个程序集进行分析
            /// </summary>
            /// <param name="assembly"></param>
            private static void AnalyzeAssembly(Assembly assembly)
            {
                Console.WriteLine("程序集名字:"+assembly.FullName);
                Console.WriteLine("程序集位置:" + assembly.Location);
                Console.WriteLine("程序集是否在GAC中:" +
                            assembly.GlobalAssemblyCache.ToString());
                Console.WriteLine("包含程序集的模块名" +
                    assembly.ManifestModule.Name);
                Console.WriteLine("运行程序集需要的CLR版本:"+
                    assembly.ImageRuntimeVersion);
                Console.WriteLine("现在开始分析程序集中的模块");
                Module[] modules = assembly.GetModules();
                foreach (Module module in modules)
                    AnalyzeModule(module);
                ////递归分析引用程序集
                ////这里的代码供读者参考
                //Console.WriteLine("开始分析引用的程序集");
                //AssemblyName[] refassemblies = assembly.GetReferencedAssemblies();
                //foreach (AssemblyName refname in refassemblies)
                //{
                //    Assembly refassembly = Assembly.Load(refname);
                //    AnalyzeAssembly(refassembly);
                //}
            }
        }
        partial class UseReflection
        {
            /// <summary>
            /// 对一个模块进行分析
            /// </summary>
            /// <param name="module">模块</param>
            private static void AnalyzeModule(Module module)
            {
                Console.WriteLine("模块名:" + module.Name);
                Console.WriteLine("模块的UUID:" + module.ModuleVersionId);
                Console.WriteLine("开始分析模块下的类型");
                Type[] types = module.GetTypes();
                foreach (Type type in types)
                    AnalyzeType(type);
            }
        }
        partial class UseReflection
        {
            /// <summary>
            /// 对一个类型进行分析
            /// </summary>
            /// <param name="type">类型</param>
            private static void AnalyzeType(Type type)
            {
                Console.WriteLine("类型名字:" + type.Name);
                Console.WriteLine("类型的类别是:"+type.Attributes);
                if (type.BaseType != null)
                    Console.WriteLine("类型的基类是:" + type.BaseType.Name);
                Console.WriteLine("类型的GUID是:" + type.GUID);
                //设置感兴趣的类型成员
                BindingFlags flags = (BindingFlags.NonPublic | BindingFlags.Public |
                                BindingFlags.Static | BindingFlags.Instance);
                //分析成员
                FieldInfo[] fields = type.GetFields(flags);
                if (fields.Length > 0)
                {
                    Console.WriteLine("开始分析类型的成员");
                    foreach (FieldInfo field in fields)
                        AnalyzeField(field);
                }
                //分析包含的方法
                MethodInfo[] methods = type.GetMethods(flags);
                if (methods.Length > 0)
                {
                    Console.WriteLine("开始分析类型的方法");
                    foreach (MethodInfo method in methods)
                        AnalyzeMethod(method);
                }
                //分析属性
                PropertyInfo[] properties = type.GetProperties(flags);
                if (properties.Length > 0)
                {
                    Console.WriteLine("开始分析类型的属性");
                    foreach (PropertyInfo property in properties)
                        AnalyzeProperty(property);
                }
            }
        }
        partial class UseReflection
        {
            /// <summary>
            /// 对一个成员进行分析,这里只做简单的分析
            /// 可以进一步分析成员的可访问级别,
            /// 或通过成员得到包含它的类型、模块等
            /// </summary>
            /// <param name="field">成员</param>
            private static void AnalyzeField(FieldInfo field)
            {
                Console.WriteLine("成员名字:" + field.Name);
                Console.WriteLine("成员的类别:" + field.Attributes);
                Console.WriteLine("成员的类型名:" + field.FieldType.Name);
            }
            /// <summary>
            /// 对一个方法进行分析
            /// </summary>
            /// <param name="method"></param>
            private static void AnalyzeMethod(MethodInfo method)
            {
                Console.WriteLine("方法名字:" + method.Name);
                Console.WriteLine("方法的类别:" + method.Attributes);
                Console.WriteLine("开始分析方法的参数");
                ParameterInfo[] parameters = method.GetParameters();
                if (parameters.Length <= 0)
                    Console.WriteLine("方法没有参数");
                foreach (ParameterInfo parameter in parameters)
                    AnalyzeParameter(parameter);
                ParameterInfo retpar = method.ReturnParameter;
                Console.WriteLine("分析方法的返回参数");
                AnalyzeParameter(retpar);
            }
            /// <summary>
            /// 分析方法参数
            /// </summary>
            /// <param name="parameter"></param>
            private static void AnalyzeParameter(ParameterInfo parameter)
            {
                Console.WriteLine("参数名字:" + parameter.Name);
                Console.WriteLine("参数的类别:" + parameter.Attributes);
                Console.WriteLine("参数的类型:" + parameter.ParameterType.Name);
            }
            /// <summary>
            /// 分析属性
            /// </summary>
            /// <param name="property"></param>
            private static void AnalyzeProperty(PropertyInfo property)
            {
                Console.WriteLine("属性名字:" + property.Name);
                Console.WriteLine("属性的类别:" + property.Attributes);
                Console.WriteLine("是否可读:" + property.CanRead.ToString());
                Console.WriteLine("是否可写:" + property.CanWrite.ToString());
            }
        }
    }

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  • 原文地址:https://www.cnblogs.com/jasonjiang/p/1763561.html
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