C#中反射的使用（How to use reflect in CSharp）（1）

最近想做一个插件式的软件给公司的监控用，初步的想法是使用C#去反射Dll，Invoke其中的方法。此文仅供开发参考，不涉及原理，98%的代码以及2%的废话。

测试Solution是这么建的（.NET FRAMEWORK 4.5.1）：

Person类代码：

 using System;
 using System.Collections.Generic;
 using System.Linq;

 namespace PersonMoudle
 {
     public class Person
     {
         public Person()
         {
             Name = "Sirius";
             Age = ;
             Height = ;
             Sex = "Middle";
         }
         public Person(string name, int age, float height, string sex)
         {
             Name = name;
             Age = age;
             Height = height;
             Sex = sex;
         }

         public string Name { get; set; }
         public int Age { get; set; }
         public float Height { get; set; }
         public string Sex { get; set; }

         public void Speak(string words)
         {
             Console.WriteLine(words);
         }
         private string GetMyName()
         {
             return Name.Trim();
         }

         public string GetMySex()
         {
             return Sex;
         }

         public List<string> BeenCity()
         {
             return new List<string>
             {
                 "Beijing",
                 "Jinan",
                 "NewYork"
             };
         }

         public List<string> BennCity(int count)
         {
             return new List<string>
             {
                 "Beijing",
                 "Jinan",
                 "NewYork"
             }.Take(count).ToList();
         }
     }
 }

控台中反射获取信息代码（控台引用类库项目，也可以load dll，后面的篇幅会写）：

 using System;
 using System.Linq;
 using PersonMoudle;

 namespace ReflectionTest
 {
     class Program
     {
         static void Main(string[] args)
         {
             var count = ;//public count set;

             var person = new Person();
             var personType = person.GetType();
             Console.WriteLine("类型名： " + personType.Name);
             Console.WriteLine("类全名： " + personType.FullName);
             Console.WriteLine("命名空间名： " + personType.Namespace);
             Console.WriteLine("程序集名： " + personType.Assembly);
             Console.WriteLine("模块名： " + personType.Module.Name);
             Console.WriteLine("是否支持泛型： "+personType.IsConstructedGenericType);

             //获取构造函数信息
             var conInfo = personType.GetConstructors();
             Console.WriteLine(personType.FullName + "共有" + conInfo.Count() + "个构造函数");
             foreach (var constructorInfo in conInfo)
             {
                 count += ;
                 Console.WriteLine("第" + count + "个构造函数：");
                 var paramsInfo = constructorInfo.GetParameters();
                 Console.WriteLine(paramsInfo.Any() ? "参数列表：" : "无参数。");
                 foreach (var parameterInfo in paramsInfo)
                 {
                     Console.WriteLine("第" + (parameterInfo.Position + ) + "参数名：" + parameterInfo.Name + ", 参数类型：" +
                                       parameterInfo.ParameterType.FullName);
                 }
             }
             count = ;

             //获取事件信息
             var eventInfo = personType.GetEvents();
             Console.WriteLine(personType.FullName+"共有"+eventInfo.Count()+"个事件");

             //获取字段信息
             var fields = personType.GetFields();
             Console.WriteLine(personType.FullName + " has " + fields.Count() + "fields.");
             foreach (var fieldInfo in fields)
             {
                 count += ;
                 Console.WriteLine("The "+count+"st field is"+fieldInfo.Name+", type is "+fieldInfo.FieldType);
             }
             count = ;

             //获取接口信息
             var ifaces = personType.GetInterfaces();
             Console.WriteLine(personType.FullName + " has " + ifaces.Count() + " interfaces.");

             //获取成员信息
             var members = personType.GetMembers();
             Console.WriteLine(personType.FullName+" has "+members.Count()+" members.");
             foreach (var memberInfo in members)
             {
                 count += ;
                 Console.WriteLine("The " + count + "st member name is " + memberInfo.Name + ", type is " +
                                   memberInfo.ReflectedType);
             }
             count = ;

             //获取方法信息
             var methods = personType.GetMethods();
             Console.WriteLine(personType.FullName+" has "+methods.Count()+" methods.");
             foreach (var methodInfo in methods)
             {
                 count += ;
                 var paramInfos = methodInfo.GetParameters();
                 Console.WriteLine("The " + count + "st method is " + methodInfo.Name + ", return type is " +
                                   methodInfo.ReturnType + ", param count is " + paramInfos.Count());

                 Console.WriteLine(paramInfos.Any() ? "参数列表：" : "无参数。");
                 foreach (var parameterInfo in paramInfos)
                 {
                     Console.WriteLine("param name:" + parameterInfo.Name + ", param type: " +
                                       parameterInfo.ParameterType);
                 }
             }
             count = ;

             //propertites
             var pros = personType.GetProperties();
             Console.WriteLine(personType.FullName+" has "+pros.Count()+ "public properties.");

             Console.ReadKey();
         }
     }
 }

下一篇讲如何调用方法。