一、用户的登陆功能 ,根据用户的用户名和密码登陆到系统主页面，登陆过程中会验证用户的用户名和密码是否正确，如果不正确就会提示用户且停留在登陆页面等待用户继续输入。并设置有登陆拦截器所以不能跳过登陆而直接访问系统主页面。 二、主页面功能主要有：报销单查询、报销单申请、报销单审核、报销单审批、退出系统等功能。因为每个登陆用户都有一个权限状态码，其中报销单查询、报销单申请、退出系统功能所有用户都能使用，而报销单审批只有权限状态为1的用户才能使用，报销单审核只有权限状态为2的用户才能使用。

-First, the user s login function, based on the user s login user name and password to the system home page, landing process will validate the user s username and password are correct, if not correct, and it will prompt the user to stay in the waiting for the user to continue to enter the login page. And is provided so you can not skip the login interceptor and direct access to the system login page. Second, the main page features are: single query reimbursement, reimbursement single application, a single audit reimbursement, reimbursement single approval, exit the system functions. Because each user has a landing permission status code, which reimbursed a single query, reimbursement single application, exit the system functions available to all users, and reimbursement approval of only a single state is 1 user permissions to use, reimbursement is only a single audit authority status 2 for users to use.