.net Ajax无刷新技术
下载一个.net Ajax开发包,该开发包包括ASP2.0和目前ASP1.1版使用的Ajax,详细地址参见http://ajax.schwarz-interactive.de/,接下来,开始。
1. 新建一个项目,在引用中添加引用Ajax.dll,Ajax.dll位于下载的压缩包里面。
2.建立HttpHandler,在web.config里面加上
<configuration>
<system.web>
<httpHandlers>
<add verb= "POST,GET " path= "ajax/*.ashx " type= "Ajax.PageHandlerFactory, Ajax " />
</httpHandlers>
<system.web>
</configuration>
3.新建一个类DemoMethods,这个类实现获取客户端MAC地址:
using System;
using System.Web;
namespace AjaxSample
{
/**//// <summary>
/// Summary description for Methods.
/// </summary>
public class DemoMethods
{
[Ajax.AjaxMethod]
public string GetCustomerMac(string clientIP) //这里输入客户端IP,这个函数知识测试用,你也可以写一个其他的简单一点的函数代替
{
string mac = " ";
System.Diagnostics.Process process = new System.Diagnostics.Process();
process.StartInfo.FileName = "nbtstat ";
process.StartInfo.Arguments = "-a "+clientIP;
process.StartInfo.UseShellExecute = false;
process.StartInfo.CreateNoWindow = true;
process.StartInfo.RedirectStandardOutput = true;
process.Start();
string output = process.StandardOutput.ReadToEnd();
int length = output.IndexOf( "MAC Address = ");
if(length> 0)
{
mac = output.Substring(length+14, 17);
}
process.WaitForExit();
return mac.Replace( "- ", " ").Trim();
}
}}
4.写javascript,新建一个名为default.js文件如下
function GetMac()
{
var clientIP= "192.168.0.1 ";
//document.getElementById( "Mac ").value=DemoMethods.GetCustomerMac(clientIP).value
alert(DemoMethods.GetCustomerMac(clientIP).value);
}
5.在某个Aspx页面放上一个html 的button
在页面上 <head> 中引用default.js :
<script language= "javascript " src= "default.js "> </script>
在INPUT的onclick事件中加上
onclick= "javascript:GetMac() "
<INPUT style= "Z-INDEX: 101; LEFT: 392px; POSITION: absolute; TOP: 176px " type= "button "
value= "客户端获取IP " onclick= "javascript:GetMac(); ">
6.在page页面的Page_Load事件中加上
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
Ajax.Utility.RegisterTypeForAjax(typeof(AjaxSample.DemoMethods));
}
注意:typeof(AjaxSample.DemoMethods)中,AjaxSample是命名空间,DemoMethods是要包含要调用方法的类,即上面第3步.新建类DemoMethods
7.修改Global.asax的Application_Start事件,设置Ajax的HandlerPath :
protected void Application_Start(Object sender, EventArgs e)