c# 反射初探【转】

首先新建一个类库,将它生成ClassLibrary1.dll

using System;
using System.Collections.Generic;
using System.Text;

namespace WebTest
{
    public class ReflectTest
    {
        private string word;

        public String Word
        {
            get
            {
                return word;
            }
            set
            {
                word = value;
            }
        }

        public ReflectTest(string w)
        {
            this.word = w;
        }

        public ReflectTest()
        {
            this.word = "word";
        }

        public string WriteString(String s)
        {
            return "Welcome + " + s;
        }

        public static string WriteStatic(String name)
        {
            return "Static : Welcome + " + name;
        }

        public string WriteNoPara()
        {
            return "NoPara : Welcome !";
        }
        private String WritePrivate()
        {
            return "Private ";
        }
    }
    public class TestClass
    {
    }
}

using System; using System.Collections.Generic; using System.Text; namespace WebTest { public class ReflectTest { private string word; public String Word { get { return word; } set { word = value; } } public ReflectTest(string w) { this.word = w; } public ReflectTest() { this.word = "word"; } public string WriteString(String s) { return "Welcome + " + s; } public static string WriteStatic(String name) { return "Static : Welcome + " + name; } public string WriteNoPara() { return "NoPara : Welcome !"; } private String WritePrivate() { return "Private "; } } public class TestClass { } }

然后新建立一个项目以入该dll(代码里有e文注释)

using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;

namespace TestReflect
{
    class Program
    {
        static void Main(string[] args)
        {
            System.Reflection.Assembly ass;
            Type type;
            Object obj;
            try
            {
                ass = Assembly.Load("ClassLibrary1");

                Console.WriteLine("-----------All the class In this dll-----------");
                foreach (Type t in ass.GetTypes())
                {
                    Console.WriteLine(t.Name);
                }

                Console.WriteLine("---------All the Module In this dll----------");
                Module[] miar = ass.GetModules();
                foreach (Module m in miar)
                {
                    Console.WriteLine(m.Name);
                }

                type = ass.GetType("WebTest.ReflectTest");

                Console.WriteLine("-----------All the method In WebTest.ReflectTest-----------");
                MethodInfo[] miarr = type.GetMethods();
                foreach (MethodInfo m in miarr)
                {
                    Console.WriteLine(m.Name);
                }

                Console.WriteLine("-----------All the Property In WebTest.ReflectTest-----------");
                PropertyInfo[] piarr = type.GetProperties(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public);
                foreach (PropertyInfo p in piarr)
                {
                    Console.WriteLine(p.Name);
                }

                Console.WriteLine("----------Call some methods in WebTest.ReflectTest-----------");
                obj = ass.CreateInstance("WebTest.ReflectTest");

                MethodInfo method = type.GetMethod("WriteString");
                String s = (String)method.Invoke(obj, new string[] { "WriteString" });
                Console.WriteLine(s);

                method = type.GetMethod("WriteStatic");
                s = (String)method.Invoke(null, new string[] { "WriteName" });
                Console.WriteLine(s);

                method = type.GetMethod("WriteNoPara");
                s = (String)method.Invoke(obj, null);
                Console.WriteLine(s);

                method = type.GetMethod("WritePrivate", BindingFlags.Instance | BindingFlags.NonPublic);
                s = (String)method.Invoke(obj, null);
                Console.WriteLine(s);

                Console.WriteLine("---------Use the Property---------");
                PropertyInfo pi = type.GetProperty("Word");
                pi.SetValue(obj, "Word", null);
                Console.WriteLine(pi.GetValue(obj,null));

                Console.WriteLine("--------- Get All Constructor ----------");
                ConstructorInfo[] ci = type.GetConstructors();
                foreach (ConstructorInfo c in ci)
                {
                    Console.WriteLine(c.ToString());
                }

                Console.WriteLine("-------- Construct --------");
                ConstructorInfo ci1 = type.GetConstructor(new Type[] { typeof(string) });
                WebTest.ReflectTest wr1 = (WebTest.ReflectTest)ci1.Invoke(new string[] { "XXX" });
                Console.WriteLine(wr1.Word);

                ConstructorInfo ci2 = type.GetConstructor(new Type[0] );
                WebTest.ReflectTest wr2 = (WebTest.ReflectTest)ci2.Invoke(null);
                Console.WriteLine(wr2.Word);

            }
            catch (Exception ex)
            {
                Console.WriteLine(ex);
            }
            finally
            {
                ass = null;
                type = null;
                obj = null;
            }

        }
    }
}

using System; using System.Collections.Generic; using System.Text; using System.Reflection; namespace TestReflect { class Program { static void Main(string[] args) { System.Reflection.Assembly ass; Type type; Object obj; try { ass = Assembly.Load("ClassLibrary1"); Console.WriteLine("-----------All the class In this dll-----------"); foreach (Type t in ass.GetTypes()) { Console.WriteLine(t.Name); } Console.WriteLine("---------All the Module In this dll----------"); Module[] miar = ass.GetModules(); foreach (Module m in miar) { Console.WriteLine(m.Name); } type = ass.GetType("WebTest.ReflectTest"); Console.WriteLine("-----------All the method In WebTest.ReflectTest-----------"); MethodInfo[] miarr = type.GetMethods(); foreach (MethodInfo m in miarr) { Console.WriteLine(m.Name); } Console.WriteLine("-----------All the Property In WebTest.ReflectTest-----------"); PropertyInfo[] piarr = type.GetProperties(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public); foreach (PropertyInfo p in piarr) { Console.WriteLine(p.Name); } Console.WriteLine("----------Call some methods in WebTest.ReflectTest-----------"); obj = ass.CreateInstance("WebTest.ReflectTest"); MethodInfo method = type.GetMethod("WriteString"); String s = (String)method.Invoke(obj, new string[] { "WriteString" }); Console.WriteLine(s); method = type.GetMethod("WriteStatic"); s = (String)method.Invoke(null, new string[] { "WriteName" }); Console.WriteLine(s); method = type.GetMethod("WriteNoPara"); s = (String)method.Invoke(obj, null); Console.WriteLine(s); method = type.GetMethod("WritePrivate", BindingFlags.Instance | BindingFlags.NonPublic); s = (String)method.Invoke(obj, null); Console.WriteLine(s); Console.WriteLine("---------Use the Property---------"); PropertyInfo pi = type.GetProperty("Word"); pi.SetValue(obj, "Word", null); Console.WriteLine(pi.GetValue(obj,null)); Console.WriteLine("--------- Get All Constructor ----------"); ConstructorInfo[] ci = type.GetConstructors(); foreach (ConstructorInfo c in ci) { Console.WriteLine(c.ToString()); } Console.WriteLine("-------- Construct --------"); ConstructorInfo ci1 = type.GetConstructor(new Type[] { typeof(string) }); WebTest.ReflectTest wr1 = (WebTest.ReflectTest)ci1.Invoke(new string[] { "XXX" }); Console.WriteLine(wr1.Word); ConstructorInfo ci2 = type.GetConstructor(new Type[0] ); WebTest.ReflectTest wr2 = (WebTest.ReflectTest)ci2.Invoke(null); Console.WriteLine(wr2.Word); } catch (Exception ex) { Console.WriteLine(ex); } finally { ass = null; type = null; obj = null; } } } }

谢谢.