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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：
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 5 namespace PersonMoudle 6 { 7 public class Person 8 { 9 public Person()10 {11 Name = "Sirius";12 Age = 25;13 Height = 172;14 Sex = "Middle";15 }16 public Person(string name, int age, float height, string sex)17 {18 Name = name;19 Age = age;20 Height = height;21 Sex = sex;22 }23 24 public string Name { get; set; }25 public int Age { get; set; }26 public float Height { get; set; }27 public string Sex { get; set; }28 29 public void Speak(string words)30 {31 Console.WriteLine(words);32 }33 private string GetMyName()34 {35 return Name.Trim();36 }37 38 public string GetMySex()39 {40 return Sex;41 }42 43 public List<string> BeenCity()44 {45 return new List<string>46 {47 "Beijing",48 "Jinan",49 "NewYork"50 };51 }52 53 public List<string> BennCity(int count)54 {55 return new List<string>56 {57 "Beijing",58 "Jinan",59 "NewYork"60 }.Take(count).ToList();61 }62 }63 }
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）：
1 using System; 2 using System.Linq; 3 using PersonMoudle; 4 5 namespace ReflectionTest 6 { 7 class Program 8 { 9 static void Main(string[] args)10 {11 var count = 0;//public count set;12 13 var person = new Person();14 var personType = person.GetType();15 Console.WriteLine("类型名： " + personType.Name);16 Console.WriteLine("类全名： " + personType.FullName);17 Console.WriteLine("命名空间名： " + personType.Namespace);18 Console.WriteLine("程序集名： " + personType.Assembly);19 Console.WriteLine("模块名： " + personType.Module.Name);20 Console.WriteLine("是否支持泛型： "+personType.IsConstructedGenericType);21 22 //获取构造函数信息23 var conInfo = personType.GetConstructors();24 Console.WriteLine(personType.FullName + "共有" + conInfo.Count() + "个构造函数");25 foreach (var constructorInfo in conInfo)26 {27 count += 1;28 Console.WriteLine("第" + count + "个构造函数：");29 var paramsInfo = constructorInfo.GetParameters();30 Console.WriteLine(paramsInfo.Any() ? "参数列表：" : "无参数。");31 foreach (var parameterInfo in paramsInfo)32 {33 Console.WriteLine("第" + (parameterInfo.Position + 1) + "参数名：" + parameterInfo.Name + ", 参数类型：" +34 parameterInfo.ParameterType.FullName);35 }36 }37 count = 0;38 39 //获取事件信息40 var eventInfo = personType.GetEvents();41 Console.WriteLine(personType.FullName+"共有"+eventInfo.Count()+"个事件");42 43 //获取字段信息44 var fields = personType.GetFields();45 Console.WriteLine(personType.FullName + " has " + fields.Count() + "fields.");46 foreach (var fieldInfo in fields)47 {48 count += 1;49 Console.WriteLine("The "+count+"st field is"+fieldInfo.Name+", type is "+fieldInfo.FieldType); 50 }51 count = 0;52 53 //获取接口信息54 var ifaces = personType.GetInterfaces();55 Console.WriteLine(personType.FullName + " has " + ifaces.Count() + " interfaces.");56 57 58 //获取成员信息59 var members = personType.GetMembers();60 Console.WriteLine(personType.FullName+" has "+members.Count()+" members.");61 foreach (var memberInfo in members)62 {63 count += 1;64 Console.WriteLine("The " + count + "st member name is " + memberInfo.Name + ", type is " +65 memberInfo.ReflectedType);66 }67 count = 0;68 69 //获取方法信息70 var methods = personType.GetMethods();71 Console.WriteLine(personType.FullName+" has "+methods.Count()+" methods.");72 foreach (var methodInfo in methods)73 {74 count += 1;75 var paramInfos = methodInfo.GetParameters();76 Console.WriteLine("The " + count + "st method is " + methodInfo.Name + ", return type is " +77 methodInfo.ReturnType + ", param count is " + paramInfos.Count());78 79 Console.WriteLine(paramInfos.Any() ? "参数列表：" : "无参数。");80 foreach (var parameterInfo in paramInfos)81 {82 Console.WriteLine("param name:" + parameterInfo.Name + ", param type: " +83 parameterInfo.ParameterType);84 }85 }86 count = 0;87 88 //propertites89 var pros = personType.GetProperties();90 Console.WriteLine(personType.FullName+" has "+pros.Count()+ "public properties.");91 92 Console.ReadKey();93 }94 }95 }
下一篇讲如何调用方法。
C#中反射的使用（How to use reflect in CSharp）（1）
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