体验.NET Ajax无刷新技术

 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 description for Methods.
///

public class DemoMethods
{

[Ajax.AjaxMethod]
public string GetCustomerMac(string clientIP) //para IP is the client's IP
{
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 中引用default.js :

  在INPUT的onclick事件中加上onclick="javascript:GetMac()"

value="客户端获取IP" onclick="javascript:GetMac();">

   6.修改Global.asax的Application_Start事件,设置Ajax的HandlerPath :

protected void Application_Start(Object sender, EventArgs e)
{
Ajax.Utility.HandlerPath = "ajax";
}

需要注意的是:该版本的.net Ajax需要手工在中Global.asax加上Ajax.Utility.HandlerPath = "ajax"; 配置文件web.config必须加上HttpHandler的配置信息!

posted @ 2006-08-07 14:53  dodo-yufan  阅读(727)  评论(0编辑  收藏  举报