%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
html xmlns="http://www.w3.org/1999/xhtml">
head runat="server">
  title>/title>
  mce:script src="jquery-1.3.2.min.js" mce_src="jquery-1.3.2.min.js" type="text/javascript">/mce:script>
  mce:script type="text/javascript">!--
    var data = {};
    data.Id = 1;
    data.Name = "1  2";
    data.Desc = "b> def /b>";
    var clientMsg = "";
    clientMsg+="font color='green'>1: 客户端编码之前:br/>";
    for (var name in data) {
      clientMsg+=(name + ":" + data[name] + "br/>");
    }
    clientMsg += "1: 客户端编码之后:br/>";
    escapeData(data);
    for (var name in data) {
      clientMsg+=name + ":" + data[name] + "br/>";
    }
    clientMsg += "/font>";
    $.post("Default.aspx", data, function (data) {
      document.write(clientMsg+"br/>"+data);
    });
    function escapeData(data) {
      for (var name in data) {
        data[name] = escape(data[name]);
      }
    }
// -->/mce:script>
/head>
body>
  form id="form1" runat="server">
  div id="divClient" style="color:Green;" mce_style="color:Green;" >
  /div>
  /form>
/body>
/html>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class _Default : System.Web.UI.Page
{
  protected void Page_Load(object sender, EventArgs e)
  {
    if (Request["Id"]!=null)
    {
      string msg = "";
      msg += "font color='red'>服务器得到的值(解码前):br/>";
      foreach (string s in Request.Form.AllKeys)
      {
        msg += string.Format("{0}:{1}br/>", s, Request.Form[s]);
      }
      msg += "服务器得到的值(解码后):br/>";
      foreach (string s in Request.Form.AllKeys)
      {
        msg += string.Format("{0}:{1}br/>", s, HttpUtility.UrlDecode(Request.Form[s]));
      }
      msg += "/font>";
      msg += string.Format("未编码的字符解码1abb>小/b>:{0}",HttpUtility.UrlDecode("1abb>小/b>")); ;
      Response.Write(msg);
      Response.End();
    }
  }
}