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)
using System;
using System.Collections.Generic;
using System.Text;
namespace Webtest
{
public class ReflectTest
{
public ReflectTest()
{}
public string WriteString(string s)
{
return "欢迎您," + s;
}
/**//// <summary>
/// dsajkjflasjdfalksdjfaskfd
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
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";
}
}
}
2 应用于反射的例子
在ASPNET页面中加入以下函数:
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
test1();
}
}
public void test1()
{
System.Reflection.Assembly ass;
Type type ;
object obj;
try
{
ass = System.Reflection.Assembly.LoadFile(@"E:/dev/ForTest/Webtest/Webtest/bin/Debug/TestReflect.dll");
type = ass.GetType("Webtest.ReflectTest");//必须使用名称空间+类名称
System.Reflection.MethodInfo method = type.GetMethod("WriteString");//方法的名称
obj = ass.CreateInstance("Webtest.ReflectTest");//必须使用名称空间+类名称
string s = (string)method.Invoke(obj,new string[]{"jianglijun"}); //实例方法的调用
Response.Write(s+"<br>");
method = type.GetMethod("WriteName");//方法的名称
s = (string)method.Invoke(null,new string[]{"jianglijun"}); //静态方法的调用
Response.Write(s+"<br>");
method = type.GetMethod("WriteNoPara");//无参数的实例方法
s = (string)method.Invoke(obj,null);
Response.Write(s+"<br>");
method = null;
}
catch(Exception ex)
{
Response.Write(ex+"<br>");
}
finally
{
ass = null;
type = null;
obj = null;
}
}
}