假設從數據庫提取數據,在html頁面中顯示:javascript
1,創建服務器後端處理程序html
添加「通常處理程序」,以下圖java
2.編寫「Handler2.ashx」代碼,以下:ajax
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Script.Serialization; namespace WebApplication5 { /// <summary> /// Handler1 的摘要說明 /// </summary> public class Handler1 : IHttpHandler { public void Proce***equest(HttpContext context) { //採用EF從數據庫中提取數據 WeatherDBEntities weatherDbcontext = new WeatherDBEntities(); var dataset = from data in weatherDbcontext.T_Station select 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));//將字符串編碼爲JSON類型 // //備註,要從javascript中傳參數的話,以下代碼,data就是傳遞的參數。而在本文件中,經過context.request("zipcode")來獲取 //如context.Response.Write(context.Request.Params["zipcode"]); // $.ajax({ // url: "/api/getWeather", //data: { // zipcode: 97201 //}, // success: function( data ) { // $( "#weather-temp" ).html( "<strong>" + data + "</strong> degrees" ); // } //}); } public bool IsReusable { get { return false; } } } }
3.添加Html頁面:HtmlPage1.html數據庫
4.結果以下c#