1. 最原始的ajax請求方式javascript
(1). get請求html
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="AjaxDemo.aspx.cs" Inherits="ajax_AjaxDemo" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title></title> <script src="../js/jquery-1.7.1.js"></script> <script type="text/javascript"> $(function () { $("#btnGetDate").click(function () { //開始經過AJAX向服務器發送請求. var xhr; if (XMLHttpRequest) {//表示用戶使用的高版本IE，谷歌，狐火等瀏覽器 xhr = new XMLHttpRequest(); } else {// 低IE xhr = new ActiveXObject("Microsoft.XMLHTTP"); } xhr.open("get", "GetDate.ashx?name=zhangsan&age=12", true); xhr.send();//開始發送 //回調函數:當服務器將數據返回給瀏覽器後，自動調用該方法。 xhr.onreadystatechange = function () { if (xhr.readyState == 4) {//表示服務端已經將數據完整返回，而且瀏覽器所有接受完畢。 if (xhr.status == 200) {//判斷響應狀態碼是否爲200. alert(xhr.responseText); } } } }); }); </script> </head> <body> <form id="form1" runat="server"> <div> <input type="button" value="獲取服務端時間" id="btnGetDate" /> </div> </form> </body> </html>
(2). post請求java
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="AjaxPostDemo.aspx.cs" Inherits="ajax_AjaxPostDemo" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title></title> <script src="../js/jquery-1.7.1.js"></script> <script type="text/javascript"> $(function () { $("#btnPost").click(function () { var xhr; if (XMLHttpRequest) { xhr = new XMLHttpRequest(); } else { xhr = new ActiveXObject("Microsoft.XMLHTTP"); } xhr.open("post", "GetDate.ashx", true); // 表示想服務端發送的請求都放在請求報文體中，而且如下面的形式發送出去 xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); xhr.send("name=zhangsan&pwd=123"); xhr.onreadystatechange = function () { if (xhr.readyState == 4) { if (xhr.status == 200) { alert(xhr.responseText); } } } }); }); </script> </head> <body> <form id="form1" runat="server" > <div> <input type="button" value="獲取數據" id="btnPost" /> </div> </form> </body> </html>
(3). 請求的公共ashx文件jquery
<%@ WebHandler Language="C#" Class="GetDate" %> using System; using System.Web; public class GetDate : IHttpHandler { public void ProcessRequest(HttpContext context) { context.Response.ContentType = "text/plain"; // context.requrest該方法會自動判斷請求的方式是get仍是post context.Response.Write(context.Request["name"]); } public bool IsReusable { get { return false; } } }
(4) .經過Jquery請求Ajax的方式ajax
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="JqueryAjax.aspx.cs" Inherits="ajax_JqueryAjax" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title></title> <script src="../js/jquery-1.7.1.js"></script> <script type="text/javascript"> $(function () { $("#btnGet").click(function () { //回調函數 $.get("GetDate.ashx", { "name": "lisi", "pwd": "123" }, function (data) { alert(data) }); }); $("#btnPost").click(function () { $.post("GetDate.ashx", { "name": "lisi", "pwd": "123" }, function (data) { alert(data) }) }); $("#btnAjax").click(function () { $.ajax({ type: "POST", //請求類型 url: "GetDate.ashx", //請求地址 data: "name=John&location=Boston", //請求參數 success: function (msg) { //回調函數 alert("Data Saved: " + msg); } }); }); }); </script> </head> <body> <form id="form1" runat="server"> <div> <input type="button" value="GET獲取數據" id="btnGet" /> <input type="button" value="POST獲取數據" id="btnPost" /> <input type="button" value="AJAX獲取數據" id="btnAjax" /> </div> </form> </body> </html>
(5). serializeArray方法的使用json
//將對象轉成json對象傳遞給後端 $("button").click(function(){ var par =$("form表單id的值").serializeArray(); });