员工培训系统：
登录界面：
<%@ page language="java" contentType="text/ html; charset=UTF-8" pageEncoding="UTF-8" import = "java.util.*"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <form action="sevelet?method=login" method="post" onsubmit="return chech(this)"> <td align="center" colspan="2"> <h2>员工培训管理系统</h2> <hr> </td> <tr> <td align="right">用户：</td> <td> <input type="radio" name="user" value="管理员" checked="checked">管理员 <input type="radio" name="user" value="员工">员工 <input type="radio" name="user" value="教师">教师 </td> </tr> <br> <tr> <td align="right">工号/学号：</td> <td><input type="text" name="num"/></td> </tr> <br> <tr> <td align="right">密码：</td> <td><input type="text" name="password"/></td> </tr> </tr> <br> <tr> <td align="center" colspan="2"> <input type="submit" value="登录"> </td> </tr> </form> </body> </html>