3.企业级权限管理系统原始的登录request response 登录

矫情吗；* 2022-05-12 01:40 120阅读 0赞

@RequestMapping("/login.page")
        public void login(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
            String username = request.getParameter("username");
            String password = request.getParameter("password");
    
            SysUser sysUser = sysUserService.findByKeyword(username);
            String errorMsg = "";
            String ret = request.getParameter("ret");
    
            if (StringUtils.isBlank(username)) {
                errorMsg = "用户名不可以为空";
            } else if (StringUtils.isBlank(password)) {
                errorMsg = "密码不可以为空";
            } else if (sysUser == null) {
                errorMsg = "查询不到指定的用户";
            } else if (!sysUser.getPassword().equals(MD5Util.encrypt(password))) {
                errorMsg = "用户名或密码错误";
            } else if (sysUser.getStatus() != 1) {
                errorMsg = "用户已被冻结，请联系管理员";
            } else {
                // login success 放入request
                request.getSession().setAttribute("user", sysUser);
                if (StringUtils.isNotBlank(ret)) {
                    //如果ret有值，重定向到ret
                    response.sendRedirect(ret);
                } else {
                    //重定向 到 首页
                    response.sendRedirect("/admin/index.page"); //TODO
                }
                return;
            }
            //设置错误 信息 用户名 需要跳转的路径
            request.setAttribute("error", errorMsg);
            request.setAttribute("username", username);
            if (StringUtils.isNotBlank(ret)) {
                request.setAttribute("ret", ret);
            }
            String path = "signin.jsp";//转发到默认的登录页面
            request.getRequestDispatcher(path).forward(request, response);
        }

<select id="findByKeyword" parameterType="string" resultMap="BaseResultMap">
        SELECT <include refid="Base_Column_List" />
        FROM sys_user
        WHERE telephone = #{keyword}
        OR mail = #{keyword}
      </select>

@RequestMapping("/logout.page")
        public void logout(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
            request.getSession().invalidate();
            String path = "signin.jsp";
            response.sendRedirect(path);
        }