C#反射实例讲解
1 创建用于反射使用的DLL 新建一个C#类库项目,拷贝源代码如下,编译生成DLL(假如DLL的文件名是TestReflect.dll) |
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using System;
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namespace Webtest
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{
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/// <summary>
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/// ReflectTest 的摘要说明。
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/// </summary>
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public class ReflectTest
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{
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public ReflectTest()
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{}
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public string WriteString(string s)
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{
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return "欢迎您," + s;
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}
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/// <summary>
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/// dsajkjflasjdfalksdjfaskfd
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/// </summary>
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/// <param name="s"></param>
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/// <returns></returns>
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public static string WriteName(string s)
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{
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return "欢迎您光临," + s;
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}
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public string WriteNoPara()
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{
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return "您使用的是无参数方法";
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}
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}
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}
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/ExpandedBlockStart.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](/Images/OutliningIndicators/ExpandedBlockEnd.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
2 应用于反射的例子
在ASPNET页面中加入以下函数:
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public void test1()
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{
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System.Reflection.Assembly ass;
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Type type ;
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object obj;
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try
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{
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ass = System.Reflection.Assembly.LoadFile(@"d:\TestReflect.dll");
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type = ass.GetType("Webtest.ReflectTest");//必须使用名称空间+类名称
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System.Reflection.MethodInfo method = type.GetMethod("WriteString");//方法的名称
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obj = ass.CreateInstance("Webtest.ReflectTest");//必须使用名称空间+类名称
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string s = (string)method.Invoke(obj,new string[]{"jianglijun"}); //实例方法的调用
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Response.Write(s+"<br>");
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method = type.GetMethod("WriteName");//方法的名称
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s = (string)method.Invoke(null,new string[]{"jianglijun"}); //静态方法的调用
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Response.Write(s+"<br>");
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method = type.GetMethod("WriteNoPara");//无参数的实例方法
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s = (string)method.Invoke(obj,null);
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Response.Write(s+"<br>");
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method = null;
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}
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catch(Exception ex)
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{
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Response.Write(ex+"<br>");
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}
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finally
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{
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ass = null;
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type = null;
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obj = null;
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}
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}
35![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/ExpandedBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](/Images/OutliningIndicators/ExpandedBlockEnd.gif)
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![](/Images/OutliningIndicators/None.gif)