83510998 2020-07-18
<script src="js/jquery-1.9.1.js" type="text/javascript"></script> <script type="text/javascript"> $(function () { $(‘#txtUserName‘).blur(function () { var username = $(this).val(); $.ajax({ type: "post", contentType: "application/json",//传值的方式 url: "WebAjaxForMe.aspx/GetValueAjax",//WebAjaxForMe.aspx为目标文件,GetValueAjax为目标文件中的方法 data: "{username:‘" + username + "‘}",//username 为想问后台传的参数(这里的参数可有可无) success: function (result) { alert(result.d);//result.d为后台返回的参数 } }) }) }) </script> //这里是参数的来源 <input id="txtUserName" type="text" />
[WebMethod]//方法前边必须添加 [WebMethod] public static string GetValueAjax(string username)//这个方法需要是静态的方法要用到关键字static { //在这里可以对传进来的参数进行任何操作 return username; }
<%--引入JQuery--%> <script src="js/jquery-2.1.1.min.js"></script> <%--使用AJAX向一般处理程序传递参数,调用函数--%> <script type="text/javascript"> $(function () { <%--当txtYiBan失去焦点的时候触发--%> $(‘#txtYiBan‘).blur(function () { var username = $(this).val(); $.ajax({ type: "GET", url: "ajaxtest.ashx?json=" + username,//ajaxtest.ashx为目标文件 dataType: "text", success: function (result) { alert(result.d);//result.d为后台返回的参数 } }) }) }) </script> <input id="txtYiBan" type="text" />
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Services; using System.Web.SessionState; namespace aspAjaxTest { /// <summary> /// ajaxtest 的摘要说明 /// </summary> [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] public class ajaxtest : IHttpHandler { HttpContext Context; /// <summary> /// 获取传的值,并调用其他的方法 /// </summary> /// <param name="context"></param> public void ProcessRequest(HttpContext context) { Context = context; context.Response.Clear(); context.Response.ContentType = "text/html; charset=utf-8"; //获取传来的值 string methodName = GetQueryString("json"); //可以调用其他方法------看下文 } /// <summary> /// 获取传的值 /// </summary> /// <param name="name"></param> /// <returns></returns> string GetQueryString(string name) { //获取传的值 return Context.Request.Params[name]; } public bool IsReusable { get { return false; } } } }
- 在aspx的后台可以用如下的方式来捕获参数:
workstateValue = Request.QueryString["workstateValue"];
- 在一般处理程序中可以用:
return Context.Request.Params[name];
1)通过webservice,注意去掉注释[System.Web.Script.Services.ScriptService]这行前的注释
2)通过aspx.cs文件中的静态方法
3)通过aspx文件url
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="asp.net.WebForm1" %> <!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> <script src="Scripts/jquery-1.4.1.js" type="text/javascript"></script> <script type="text/javascript"> function Ws() { $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", url: "WebService1.asmx/HelloWorld2", data: "{name:‘xiaoxiao‘}", dataType: ‘json‘, success: function (result) { alert(result.d); } }); } function StaticMethod() { $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", url: "aspxpage.aspx/SayHello2", data: "{name:‘xiaoxiao‘}", dataType: ‘json‘, success: function (result) { alert(result.d); } }); } function FromPage() { $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", url: "dataContent.aspx?nowtime=‘" + new Date() + "‘", data: "{}", dataType: ‘html‘, success: function (result) { alert(result); } }); } </script> </head> <body> <form id="form1" runat="server"> <div> <input id="Button1" type="button" value="jquery调用WebService" onclick="Ws()" /> </div> <div> <input id="Button2" type="button" value="jquery调用aspx页面静态方法" onclick="StaticMethod()" /> </div> <div> <input id="Button3" type="button" value="jquery通过page存储值" onclick="FromPage()" /> </div> </form> </body> </html>
前台code
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Services; namespace asp.net { /// <summary> /// WebService1 的摘要说明 /// </summary> [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [System.ComponentModel.ToolboxItem(false)] // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务,请取消对下行的注释。 [System.Web.Script.Services.ScriptService] public class WebService1 : System.Web.Services.WebService { [WebMethod] public string HelloWorld() { return "Hello World"+System.DateTime.Now.ToLongTimeString(); } [WebMethod] public string HelloWorld2(string name) { return "Hello World" + name + System.DateTime.Now.ToLongTimeString(); } } }
webservice中code
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.Services; namespace asp.net { public partial class aspx页面代替ws : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } [WebMethod] public static string SayHello() { return "Hello"; } [WebMethod] public static string SayHello2(string name) { return "Hello"+name; } } }
aspx.cs中code
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.IO; namespace asp.net { public partial class dataContent : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { Response.Clear(); Page.ViewStateMode = ViewStateMode.Disabled; if (Request.QueryString["nowtime"] != null) { string stime = Request.QueryString["nowtime"].ToString(); Response.Write(stime); } Response.Flush(); } } }
用url传值 通过aspx页面保存数据
结束数据方法的参数,该如何定义?-- 集合为自定义实体类中的结合属性,有几个实体类,改变下标就行了。<input id="add" type="button" value="新增visitor&quo
本文实例讲述了php+ ajax 实现的写入数据库操作。分享给大家供大家参考,具体如下:。<input class="tel" type="text" placeholder="请输入您的手机号码&q