js通用的登录验证
时间 2021-08-15
标签
javascript
html
java
ide
post
spa
orm
htm
/* 试用 Javascript来实现通用的登陆验证功能 *实现简单 *代码少 适用于简单的JSP页面管理* * */
<%@ page language="java" contentType="text/html; charset=GBK"
pageEncoding="GBK"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "
http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <script type="text/javascript"> function checkform(myform){ for(i=0;i<myform.length;i++){ if(myform.elements[i].value==""){ alert(myform.elements[i].title+"不能为空!"); myform.elements[i].focus(); return false; } } } </script> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Insert title here</title> </head> <body> <form action="" name="form1" method="post" onSubmit="return checkform(form1)"> <table> <tr> <td>用户名:<input name="name" title="用户名" type="text"></td> <td>密 码:<input name="pwd" title="密码" type="password"></td> </tr> <tr> <td colspan="2">邮 箱<input name="email" title="邮箱" type="text" ></td> </tr> <tr> <td><input type="submit" name="Submit" value="提交"></td> <td><input type="reset" name="Reset" value="重置"></td> </tr> </table> </form> </body> </html>