c# 反射的使用方法_.NET

在网上查找了不少的资料，可以说大同小异，概念性的东西网上一搜一堆，今天把反射的东西整理了一下，供大家使用，我保证我这里是最全面的东西，当然也是基础的东西，在学好了这一切的基础上，大家可以学习反射的具体插件等应用，老鸟就不用看了。首先我们建立一个类库，将它生成为HelloWorld.dll，

using System;

namespace Webtest
...{

        public interface interface1
         ...{
              int add();

         }
         public class ReflectTest:interface1
         ...{

public String Write;
private String Writec;

             public String Writea
             ...{
                 get
                 ...{
                     return Write;
                 }
                 set
                 ...{
                     Write = value;
                 }

}

             private String Writeb
             ...{
                 get
                 ...{
                     return Writec;
                 }
                 set
                 ...{
                     Writec = value;
                 }

}

              public ReflectTest()
              ...{
                  this.Write = "Write";
                  this.Writec = "Writec";
              }

             public ReflectTest(string str1,string str2)
             ...{
                 this.Write = str1;
                 this.Writec = str2;

}

             public string WriteString(string s,int b)
             ...{
                 return "欢迎您，" + s + "---" + b; ;
             }

              public static string WriteName(string s)
              ...{
                 return "欢迎您光临，" + s;
              }

             public string WriteNoPara()
             ...{
                return "您使用的是无参数方法";
             }

             private string WritePrivate()
             ...{
                 return "私有类型的方法";
             }

             public int add()
             ...{
                 return 5;
             }
         }
    }然后,建立再建立一个项目引入该HelloWorld.dll,
    using System;

using System.Threading;
using System.Reflection;

    class Test
    ...{
        delegate string TestDelegate(string value,int value1);

       static void Main()
        ...{
            //Assembly t = Assembly.LoadFrom("HelloWorld.dll"); 与下面相同的效果
            Assembly t = Assembly.Load("HelloWorld");

           foreach (Type aaa in t.GetTypes())
           ...{
                //Console.Write(aaa.Name);   //显示该dll下所有的类
            }

Module[] modules = t.GetModules();

            foreach (Module module in modules)
            ...{
                //Console.WriteLine("module name:" + module.Name);//显示模块的名字本例为"HelloWorld.dll"
            }

Type a = typeof(Webtest.ReflectTest);//得到具体的类的类型,和下面一个效果

//Type a = t.GetType("Webtest.ReflectTest");//
//Console.Write(a.Name);

            string[] bb =...{ "aaaa", "bbbbb" };
            object obj = Activator.CreateInstance(a,bb); //创建该类的实例,后面的bb为有参构造函数的参数
            //object obj = t.CreateInstance("Webtest.ReflectTest");//与上面方法相同

            MethodInfo[] miArr = a.GetMethods();
            foreach (MethodInfo mi0 in miArr)
           ...{
                //Console.Write(mi0.Name); //显示所有的共有方法
           }

            MethodInfo mi = a.GetMethod("WriteString");//显示具体的方法
            object[] aa=...{"使用的是带有参数的非静态方法",2};
            string s = (string)mi.Invoke(obj,aa); //带参数方法的调用

            MethodInfo mi1 = a.GetMethod("WriteName");
            String[] aa1 =...{"使用的是静态方法"};
            string s1 = (string)mi1.Invoke(null, aa1); //静态方法的调用

MethodInfo mi2 = a.GetMethod("WriteNoPara");
string s2 = (string)mi2.Invoke(obj, null); //不带参数的方法调用

MethodInfo mi3 = a.GetMethod("WritePrivate",BindingFlags.Instance | BindingFlags.NonPublic);
string s3 = (string)mi3.Invoke(obj, null); //私有类型方法调用

//Console.Write(s3);

            PropertyInfo[] piArr = a.GetProperties(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public);
            foreach (PropertyInfo pi in piArr)
            ...{
             //Console.Write(pi.Name); //显示所有的方法
            }

            PropertyInfo pi1=a.GetProperty("Writea");
            //pi1.SetValue(obj, "Writea", null);
            //Console.Write(pi1.GetValue(obj,null));

                    PropertyInfo pi2 = a.GetProperty("Writeb", BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public);
            pi2.SetValue(obj, "Writeb", null);
            //Console.Write(pi2.GetValue(obj, null));

FieldInfo fi1 = a.GetField("Write");
//Console.Write(fi1.GetValue(obj));

            ConstructorInfo[] ci1 = a.GetConstructors();
            foreach (ConstructorInfo ci in ci1)
            ...{
                //Console.Write(ci.ToString()); //获得构造函数的形式
            }

ConstructorInfo asCI = a.GetConstructor(new Type[] ...{ typeof(string), typeof(string) });
//Console.Write(asCI.ToString());

            Webtest.interface1 obj1 = (Webtest.interface1)t.CreateInstance("Webtest.ReflectTest");
            Webtest.ReflectTest obj2 = (Webtest.ReflectTest)t.CreateInstance("Webtest.ReflectTest");
            //Console.Write(obj1.add());典型的工厂模式

            foreach (Type tt in t.GetTypes())
            ...{
                if (tt.GetInterface("interface1")!=null)
                ...{
                    Webtest.interface1 obj3 = (Webtest.interface1)Activator.CreateInstance(a);
                    //Console.Write(obj3.add());
                }
            }

            TestDelegate method = (TestDelegate)Delegate.CreateDelegate(typeof(TestDelegate), obj, "WriteString");
             //动态创建委托的简单例子
            Console.Write(method("str1", 2));
            Console.Read();
        }
    }
    在这里我把我们常用的方法,属性,等全部整理了出来,大家不要嫌弃乱,静下心来,自己按照我的分隔一部分一部分的来,保证你对反射的学习,会事半功倍.当然有关于其方法我会继续补充,想了这么些就先写下来吧.

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c# 反射的使用方法