今天完成的事情：

把任务一到任务五的结合做完了。

贴一下项目结构：

public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object var3) throws Exception {
    Cookie[] cookies = request.getCookies();
    if(cookies!=null) {
        for (Cookie cookie: cookies) {
            if(cookie.getName().equals("name")){
                int id = Integer.parseInt(util.decrypt(cookie.getValue()));
                if(userService.findByID(id)!=null){
                    return true;
                }
            }
        }

    }else {
        response.sendRedirect("/user");
        return false;
    }
    response.sendRedirect("/user");
    return false;
}

CRUD
//新增的同时，提交了创建时间，同时还提交了更新时间。
@RequestMapping(value = "/newStudent",method = RequestMethod.POST)
public String insert(String name, Long QQ, String studyType, Date date, String graduation, String studentID, String dailyLink, String desire, String bro){
    Calendar c =Calendar.getInstance();
    c.setTime(date);
    System.out.println("name----->"+name);
    System.out.println("date----->"+date);
    Long newDate = c.getTimeInMillis();
    System.out.println(newDate);
    Long newUpdate_at = System.currentTimeMillis();
    Long newCreate_at = System.currentTimeMillis();
    studentService.insert(name,QQ,studyType,newDate,graduation,studentID,dailyLink,desire,bro,newUpdate_at,newCreate_at);
    //重定向到所有学生页
    return "redirect:allStudent";
}
//查看所有学生
@RequestMapping(value = "/allStudent",method = RequestMethod.GET)
public String list(Model model){
    List<Student> studentList = studentService.list();
    model.addAttribute("studentList",studentList);
    return "studentList";
}
//编辑学生
@RequestMapping(value = "/student",method = RequestMethod.GET)
public String update(int id,Model model){
    Student student = studentService.getStudent(id);
    model.addAttribute("student",student);
    System.out.println(student.getDate());
    System.out.println("********************");
    return "editStudent";
}
@RequestMapping(value = "/student",method = RequestMethod.POST)
public String update(int id ,String name,Long QQ, String studyType, Date date, String graduation, String studentID, String dailyLink, String desire, String bro){
    Calendar c =Calendar.getInstance();
    c.setTime(date);
    System.out.println("name----->"+name);
    System.out.println("date----->"+date);
    Long newDate = c.getTimeInMillis();
    System.out.println(newDate);
    Long newUpdate_at = System.currentTimeMillis();
    studentService.update(id,name,QQ,studyType,newDate,graduation,studentID,dailyLink,desire,bro,newUpdate_at);
    return "redirect:allStudent";
}
//删除学生
@RequestMapping(value = "/oldStudent",method = RequestMethod.GET)
public String delete(int id){
    studentService.delete(id);
    return "redirect:allStudent";
}
//查看一个学生
@RequestMapping("singleStudent")
public String getStudent(int id,Model model){
    Student student = studentService.getStudent(id);
    model.addAttribute("student",student);
    return "singleStudent";
}

//登录流程。登录注销
@RequestMapping(value = "/user",method = RequestMethod.POST)
public String forLogin(String name, String password, HttpServletRequest request, HttpServletResponse response, Model model, HttpSession session) throws Exception{
    logger.info("把用户输入密码执行MD5加密后进入用户身份判断");
    System.out.println("登录是输入密码"+password);
    password = MD5UtilAndSalt.getMD5(password);
    System.out.println("登录时加密后密码为："+password);
    User user =  userService.findByNameAndPassword(name,password);
    System.out.println("user为"+user);
    if(user!=null){
        String des =user.getId()+"="+System.currentTimeMillis();
        System.out.println("userID为---->"+user.getId());
        String token = util.encryption(des);
        Cookie cookie  = new Cookie("name",token);
        cookie.setPath("/");
        cookie.setMaxAge(24*60*60);
        model.addAttribute("user",user);
        response.addCookie(cookie);
        return "hello";
    }else {
        logger.info("帐密错误");
        return "web";
    }
}
//注销登录
@RequestMapping(value = "/loginOut",method = RequestMethod.GET)
public String loginOut(HttpServletRequest request, HttpServletResponse response, ModelAndView modelAndView){
    Cookie[] cookies =  request.getCookies();
    if(cookies !=null){
        for (Cookie cookie:cookies) {
            if(cookie.getName().equals("name")){
                cookie.setValue(null);
                cookie.setMaxAge(0);
                cookie.setPath("/");
                response.addCookie(cookie);
                System.out.println("删除cookie");
                return"web";
            }
        }
    }
    return null;
}

@RequestMapping(value = "/newUser", method = RequestMethod.GET)
public String register(){
    System.out.println("进入注册界面");
    logger.info("注册界面");
    return "register";
}
@RequestMapping(value = "/newUser", method = RequestMethod.POST)
public String forRegister(String name,String password){
    logger.info("传入的姓名是："+name);
    logger.info("传入的密码为："+password);
    System.out.println(name);
    List<User> list  = userService.nameList();
    System.out.println("list为"+list);
        //前台表单如果不输入数据，直接提交，值是""，而不是NULL
    if(name==null||name.trim().equals("")){
        logger.info("姓名不能为空");
        return null;
        }else if(password==null||password.trim().equals("") ) {
            logger.info("密码不能为空");
            return null;
        }else{
            for (User user:list) {
                if(name.equals(user.getName())){
                    System.out.println("name不能一样");
                    break;
                }else {
                    Calendar c = Calendar.getInstance();
                    Long create_at =c.getTimeInMillis();
                    password = MD5UtilAndSalt.getMD5(password);
                    logger.info("加密后的密码为："+password);
                    userService.addUser(name, password,create_at);
                    return "web";
                }
            }
        }
        System.out.println("&&&&&&&&&");
        return null;
}

//拦截器
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object var3) throws Exception {
Cookie[] cookies = request.getCookies();
    if(cookies!=null) {
        for (Cookie cookie: cookies) {
            if(cookie.getName().equals("name")){
                int id = Integer.parseInt(util.decrypt(cookie.getValue()));
                if(userService.findByID(id)!=null){
                    return true;
                }
            }
        }

    }else {
        response.sendRedirect("/user");
        return false;
    }
    response.sendRedirect("/user");
    return false;
}

嗯，整合了一下之前做的很多东西。感觉还不错。一个基本流程吧。

明天计划的事情：

服务器蹦了，明天搞小课堂，把服务器搞好吧。
遇到的问题：

每太大问题。多个页面整合，要注意各个界面之间的关系。理清各个层次这样更容易理解。

收获：熟悉了一下基本流程。