直接上代码：
HTML代码，其中表单中input标签中的value值首先用一个占位符占位，然后在ashx中将其替换
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <title></title> </head> <body> <form action = "02jsqHandler.ashx" method = "post"> <input type = "text" name = "txtNum1" value = "@txtNum1" />+ <input type = "text" name = "txtNum2" value = "@txtNum2" /> =<input type = "text" name = "txtResult" value = "@txtResult" /> <input type = "hidden" name = "IsPostBack" value = "false" /> <input type = "submit" value = "计算" /> </form> </body> </html>
ashx代码：
首先用io中的File.ReadAllText（）方法将html文件读出来
public class _02jsqHandler : IHttpHandler { public void ProcessRequest (HttpContext context) { context.Response.ContentType = "text/html"; //获得html文件的内容 string path = context.Server.MapPath("03jsq2.htm"); string strHtml = File.ReadAllText(path); //声明三个整形变量 int n1 = 0, n2 = 0, result = 0; bool ispostback = Convert.ToBoolean(context.Request.Form["IsPostBack"]); if (!ispostback) //判断是否是第一次加载相当于aspx.cs中的IsPostBack { //分别获得数1和数2 string sn1 = context.Request.Form["txtNum1"]; string sn2 = context.Request.Form["txtNum2"]; if (int.TryParse(sn1, out n1) && int.TryParse(sn2, out n2)) { result = n1 + n2; } //context.Response.Write(result.ToString()); } //将html中的@参数（占位符替换为对应的数据） strHtml = strHtml.Replace("@txtNum1", n1.ToString()) .Replace("@txtNum2", n2.ToString()) .Replace("@txtResult", result.ToString()); //将html写回页面 context.Response.Write(strHtml); } public bool IsReusable { get { return false; } }