蜗牛—Ajax学习之登录验证
发布时间:2020-12-16 00:33:18 所属栏目:百科 来源:网络整理
导读:index.html !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"headmeta http-equiv="Content-Type" content="text/html; charset=utf-8
index.html <!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> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Ajax登录</title> <style type="text/css"> .input-text { border:1px solid #999; width:150px; } #msg { color:#f00; } </style> <script type="text/javascript" src="js/jquery-1.5.1.min.js"></script> <script type="text/javascript"> $(function(){ $("#login").bind("click",function(){ var uname = $("#userName").val(); var pwd = $("#passWord").val(); if(uname == "" || pwd == ""){ $("#msg").html("密码和用户名必须填写!"); return false; } //ajax异步请求 //var user_info = "uname="+uname+"&pwd="+pwd; //json var user_info = {"uname":uname,"pwd":pwd}; $.ajax({url:'api.jsp',data:user_info,dataType:"html",success: function(data){ $("#msg").html(data); },error:function(){ }}); }); }); </script> </head> <body> <p>用户名:<input type="text" name="userName" id="userName" class="input-text" /></p> <p>密 码:<input type="password" name="passWord" id="passWord" class="input-text" /></p> <p><input type="button" name="login" id="login" value="登录" /></p> <div id="msg"></div> </body> </html> api.jsp 登录成功! 运行如下两图: 这样的话,传到后台的数据为var user_info = {"uname":uname,"pwd":pwd}; (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |