search

Home  >  Article  >  php教程  >  ajax验证用户名和密码，ajax验证用户名

ajax验证用户名和密码，ajax验证用户名

WBOY
WBOYOriginal
2016-06-13 09:29:261370browse

ajax验证用户名和密码，ajax验证用户名

<span><span> 1</span>     <span>var</span> user = form.name.<span>value;
</span><span> 2</span>     <span>var</span> password = form.password.<span>value;
</span><span> 3</span>     <span>var</span> url = "chkname.php?user="+user+"&password="+password;<span>//</span><span>以前只知道ajax用于对用户名的检测，原来还可以对密码进行检测。</span>
<span> 4</span>     xmlhttp.open("GET",url,<span>true</span><span>);
</span><span> 5</span>     xmlhttp.onreadystatechange = <span>function</span><span>(){
</span><span> 6</span>     <span>if</span>(xmlhttp.readyState == 4<span>){
</span><span> 7</span>             <span>var</span> msg = xmlhttp.<span>responseText;
</span><span> 8</span>             <span>if</span>(msg == '1'<span>){
</span><span> 9</span>                 alert('用户名或密码错误!!'<span>);
</span><span>10</span>                 form.password.<span>select();
</span><span>11</span>                 form.check.value = ''<span>;
</span><span>12</span> <span>                code(form);
</span><span>13</span>                 <span>return</span> <span>false</span><span>;
</span><span>14</span>             }<span>if</span>(msg == "3"<span>){
</span><span>15</span>                 alert("用户名被占用，请重新输入！"<span>);
</span><span>16</span>                 <span>return</span> <span>false</span><span>;
</span><span>17</span>             }<span>else</span><span>{
</span><span>18</span>                 alert('欢迎光临'<span>);
</span><span>19</span>                 location.<span>reload();
</span><span>20</span> <span>            }
</span><span>21</span> <span>        }
</span><span>22</span> <span>    }
</span><span>23</span>     xmlhttp.send(<span>null</span><span>);
</span><span>24</span>     <span>return</span> <span>false</span>;</span>

php通过ajax实现用户名与数据库中用户验证

第一步需要一个 jq的js文件
#47;/W3C//DTD HTML 4.01 Transitional//EN" "www.w3.org/TR/html4/loose.dtd">



Login<br><script type="text/javascript" src="<?php%20echo%20%24this->baseUrl%20?>/public/js/jq1.7.js"></script><br /><script language="javascript"><br />$(document).ready(function(){<br />$("#submit").click(function(){<br />if( $("#uname").val() == "" || $("#upas").val() == "" ){<br />alert("用户名或者密码不能为空");<br />return false;<br />}else{<br />$("#showerrormessage").load(<br />'<?php echo $this->baseUrl ?>/index/login',<br />{uname:$("#uname").val(),upas:$("#upas").val()},<br />function(data){<br />if(data == 1){<br />$("#showerrormessage").html('login success!!!');<br />}else{<br />$("#showerrormessage").html('login error~~~');<br />}<br />}<br />);<br />}<br />});<br />});<br /></script><br /></head><br /><body><br /><form id="form1" name="form1" method="post" action=""><br />用户名：<input type="te......余下全文>><br/>   <p class="header2"><span class="icon i-relatedanswer"><h3>我想用jsp+ajax技术实现登录的用户名与密码验证，主要是用javascript来做<p class="best-replyer"> <p class="ft p1">Ajax我会.但JSP我只是个半吊子<br/>   </script>
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：项目整合Discuz UCenter，整合discuzucenterNext article：php中json_encode gbk/gb2312中文乱码

Related articles

See more