js通用的登錄驗證

時間 2021-08-15

標籤 javascript html java ide post spa orm htm 欄目 JavaScript 简体版

原文原文鏈接

/* 試用 Javascript來實現通用的登陸驗證功能 *實現簡單 *代碼少適用於簡單的JSP頁面管理* * */

<%@ 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+"不能爲空!"); 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>用戶名:<input name="name" title="用戶名" type="text"></td> <td>密 碼:<input name="pwd" title="密碼" type="password"></td> </tr> <tr> <td colspan="2">郵   箱<input name="email" title="郵箱" 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>