假设从数据库提取数据，在html页面中显示：

1，建立服务器后端处理程序

添加“一般处理程序”，如下图

2.编写“Handler2.ashx”代码，如下：

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Script.Serialization;namespace WebApplication5{/// 
/// Handler1 的摘要说明/// 
public class Handler1 : IHttpHandler{public void Proce***equest(HttpContext context){//采用EF从数据库中提取数据WeatherDBEntities weatherDbcontext = new WeatherDBEntities();var dataset = from data in weatherDbcontext.T_Stationselect new { data.StationName, data.StationPosition, data.Lat, data.Lon };JavaScriptSerializer tool = new JavaScriptSerializer();context.Response.ContentType = "text/plain"; //字符串形式context.Response.Write(tool.Serialize(dataset));//将字符串编码为JSON类型////备注，要从javascript中传参数的话，如下代码，data就是传递的参数。而在本文件中，通过context.request("zipcode")来获取//如context.Response.Write(context.Request.Params["zipcode"]);//            $.ajax({//  url: "/api/getWeather",//data: {//  zipcode: 97201//},//  success: function( data ) {//    $( "#weather-temp" ).html( "" + data + " degrees" );//  }//});}public bool IsReusable{get{return false;}}}}

3.添加Html页面：HtmlPage1.html

4.结果如下