search

Home  >  Article  >  Web Front-end  >  jQuery uses $.ajax to submit a form complete example_jquery

jQuery uses $.ajax to submit a form complete example_jquery

WBOY
WBOYOriginal
2016-05-16 15:26:191472browse

The example in this article describes how jQuery uses $.ajax to submit a form. Share it with everyone for your reference, the details are as follows:

First, create a new Login.html page: 

<!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>
 <title>$.ajax()方法发送请求</title>
 <script type="text/javascript" src="jquery-1.4.1.js"></script>
 <style type="text/css">
  body
  {
   font-size: 13px;
  }
  .divFrame
  {
   width: 225px;
   border: solid 1px #666;
  }
  .divFrame .divTitle
  {
   padding: 5px;
   background-color: #eee;
   height: 23px;
  }
  .divFrame .divTitle span
  {
   float: left;
   padding: 2px;
   padding-top: 5px;
  }
  .divFrame .divContent
  {
   padding: 8px;
   text-align: center;
  }
  .divFrame .divContent .clsShow
  {
   font-size: 14px;
   line-height: 2.0em;
  }
  .divFrame .divContent .clsShow .clsError
  {
   font-size: 13px;
   border: solid 1px #cc3300;
   padding: 2px;
   display: none;
   margin-bottom: 5px;
   background-color: #ffe0a3;
  }
  .txt
  {
   border: #666 1px solid;
   padding: 2px;
   width: 150px;
   margin-right: 3px;
  }
  .btn
  {
   border: #666 1px solid;
   padding: 2px;
   width: 50px;
  }
 </style>
 <script type="text/javascript">
  $(function () {
   $("#txtName").focus();//输入焦点
   $("#txtName").keydown(function (event) {
    if (event.which == "13") {//回车键,移动光标到密码框
     $("#txtPass").focus();
    }
   });
   $("#txtPass").keydown(function (event) {
    if (event.which == "13") {//回车键，用.ajax提交表单
     $("#btnLogin").trigger("click");
    }
   });
   $("#btnLogin").click(function () { //“登录”按钮单击事件
    //获取用户名称
    var strTxtName = encodeURI($("#txtName").val());
    //获取输入密码
    var strTxtPass = encodeURI($("#txtPass").val());
    //开始发送数据
    $.ajax
    ({ //请求登录处理页
     url: "Login.aspx", //登录处理页
     dataType: "html",
     //传送请求数据
     data: { txtName: strTxtName, txtPass: strTxtPass },
     success: function (strValue) { //登录成功后返回的数据
      //根据返回值进行状态显示
      if (strValue == "True") {//注意是True,不是true
       $(".clsShow").html("操作提示，登录成功！" + strValue);
      }
      else {
       $("#divError").show().html("用户名或密码错误！" + strValue);
      }
     }
    })
   })
  })
 </script>
</head>
<body>
 <form id="frmUserLogin">
 <div class="divFrame">
  <div class="divTitle">
   <span>用户登录</span>
  </div>
  <div class="divContent">
   <div class="clsShow">
    <div id="divError" class="clsError">
    </div>
    <div>
     名称：<input id="txtName" type="text" class="txt" /></div>
    <div>
     密码：<input id="txtPass" type="password" class="txt" /></div>
    <div>
     <input id="btnLogin" type="button" value="登录" class="btn" /> &nbsp
     <input id="btnReset" type="reset" value="取消" class="btn" />
    </div>
   </div>
  </div>
 </div>
 </form>
</body>
</html>

Then, create a new Login.aspx to receive and process the data: 

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Login.aspx.cs" Inherits="JSDemo.Login" ResponseEncoding="gb2312"%>
<%
 string strName = System.Web.HttpUtility.UrlDecode(Request["txtName"]);
 string strPass = System.Web.HttpUtility.UrlDecode(Request["txtPass"]);
 bool login = false;
 if (strName == "admin" && strPass == "admin")
 {
  login = true;
 }
 Response.Write(login);
%>

I hope this article will be helpful to everyone in jQuery programming.

Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：How to dynamically insert CSS in JavaScript_javascript skillsNext article：How to dynamically insert CSS in JavaScript_javascript skills

Related articles

See more