//HTML代码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>计算器</title>
</head>
<body>
<form action='' method='post'>
<input type='text' name='txtNum1' value='{num1}' />
+
<input type='text' name='txtNum2' value='{num2}' />
=
<input type='text' name='txtSum' value='{res}' /><br />
<input type='submit' value='计算' /><input type='hidden' name='hidIsPostBack' value='1' /></form>
</body>
</html>
//一般处理程序ashx代码
<%@ WebHandler Language="C#" Class="C07Cul" %>
using System;
using System.Web;
using System.IO;
public class C07Cul : IHttpHandler {
public void ProcessRequest (HttpContext context) {
context.Response.ContentType = "text/html";
//-----------------------------------------读取html模板内容------------------------------------------------------
//根据虚拟路径获得物理路径
string path = context.Server.MapPath("C07CulModel.html");
string strHTML = File.ReadAllText(path);
//--------------------------------获得浏览器提交的数据并运算----------------------------------------------
string strNum1 = context.Request.Form["txtNum1"];
string strNum2 = context.Request.Form["txtNum2"];
int x = 0;
int y = 0;
int z = 0;
//如果包含隐藏域的话，才执行相加运算操作
if (!string.IsNullOrEmpty(context.Request.Form["hidIsPostBack"]))
{
if (!string.IsNullOrEmpty(strNum1) && !string.IsNullOrEmpty(strNum2))
{
if (int.TryParse(strNum1, out x) && int.TryParse(strNum2, out y))
{
z = x + y;
}
}
}
//-----------------------------输出html代码到浏览器-------------------------------
strHTML = strHTML.Replace("{num1}", x.ToString()).Replace("{num2}", y.ToString()).Replace("{res}", z.ToString());
context.Response.Write(strHTML);
}
public bool IsReusable {
get {
return false;
}
}
}
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