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Jquery异步请求数据实例代码

发布时间:2018-09-13 15:12 作者:admin 来源: 点击: 字号:

一、Jquery向aspx页面请求数据 前台页面JS代码: 复制代码 代码如下: $("#Button1").bind("click", function () { $.ajax({ type: "post", url: "default.aspx", data: "name=" + $("#Text1").val(), success: function (result) { alert(result.msg); } }); }); 复制代码 代码如下: <input id="Text1" type="text" value='张三'/> <input id="Button1" type="button" value="提交" /> 后台cs代码: 复制代码 代码如下: protected void Page_Load(object sender, EventArgs e) { if (Request["name"]!=null) { Response.ContentType = "text/json"; Response.Write("{"msg":""+Request["name"]+""}");//将数据拼凑为Json Response.End(); } } 二、Jquery向WebService页面请求数据 复制代码 代码如下: $("#Button2").bind("click", function () { $.ajax({ type: "post", contentType: "application/json", url: "WebService.asmx/HelloWorld", data: "{name:'" + $("#Text1").val() + "'}", datatype: "json", success: function (result) { alert(result.d); } }); }); <input id="Button2" type="button" value="向WebService提交" /> WebService代码 复制代码 代码如下: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Services; /// <summary> /// Summary description for WebService /// </summary> [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. [System.Web.Script.Services.ScriptService] public class WebService : System.Web.Services.WebService { public WebService () { //Uncomment the following line if using designed components //InitializeComponent(); } [WebMethod] public string HelloWorld( string name) { return "Hello World"+name; } } 三、Jquery向ashx请求数据和向页面相同 Js代码: 复制代码 代码如下: $("#Button3").bind("click", function () { $.ajax({ type: "post", url: "Handler.ashx", data: "name=" + $("#Text1").val(), success: function (result) { alert(result.msg); } }); }); 后台代码: 复制代码 代码如下: <%@ WebHandler Language="C#" Class="Handler" %> using System; using System.Web; public class Handler : IHttpHandler { public void ProcessRequest (HttpContext context) { context.Response.ContentType = "text/json"; context.Response.Write("{"msg":"Hello World"+context.Request["name"]+"来自handler.ashx"}"); context.Response.End(); } public bool IsReusable { get { return false; } } } 代码下载

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