springboot项目

package com.example.dao; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.servlet.ModelAndView; import com.example.dao.User; import com.example.repository.UserRepository; @RestController @RequestMapping("/user") public class UserController { // @RequestMapping("/{id}") // public User getuser(@PathVariable("id") long id) { // return new User(id, "zhangsan", 25); // // } @Autowired private UserRepository userrepo; @RequestMapping("/userlist") public ModelAndView userList(Model model) { model.addAttribute("userList",userrepo.userList());//addAttribute向前传数据，可以是对象 model.addAttribute("title", "用户管理"); return new ModelAndView ("user/list","userModel",model); } //根据id 查询用户 @GetMapping("{id}") public ModelAndView view(@PathVariable("id") Long id, Model model){ User user= userrepo.getUserById(id); model.addAttribute("user",user); model.addAttribute("title","查看用户"); return new ModelAndView("user/view" ,"userModel",model); } //获取创建表单页面 @GetMapping("/form") public ModelAndView createForm(Model model){ model.addAttribute("user",new User()); model.addAttribute("title","创建用户"); return new ModelAndView("user/form","userModel",model); } //保存用户 @PostMapping public ModelAndView saveOrUpdateUser(User user){ user =userrepo.savaOrUpdateUser(user); return new ModelAndView("redirect:/user/userlist"); } //根据id删除用户 @GetMapping(value = "delete/{id}") public ModelAndView delete(@PathVariable("id") Long id){ userrepo.deleteUser(id); return new ModelAndView("redirect:/user/userlist"); } //修改用户界面 @GetMapping(value = "edit/{id}") public ModelAndView editForm(@PathVariable("id") Long id,Model model){ User user =userrepo.getUserById(id); model.addAttribute("user",user); model.addAttribute("title","编辑用户"); return new ModelAndView("user/form" ,"userModel",model); } }