JavaWeb大作业基于springboot+JPA的网络点餐系统源码+数据库.zip

package top.naccl.controller.admin; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.domain.Pageable; import org.springframework.data.domain.Sort; import org.springframework.data.web.PageableDefault; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.validation.BindingResult; import org.springframework.web.bind.annotation.*; import org.springframework.web.servlet.mvc.support.RedirectAttributes; import top.naccl.annotation.OnlyAdmin; import top.naccl.bean.Food; import top.naccl.service.FoodService; import top.naccl.service.TypeService; import javax.validation.Valid; /** * @Description: 菜品管理 * @Author: Naccl * @Date: 2020-05-17 */ @Controller @RequestMapping("/admin") @OnlyAdmin public class FoodController { @Autowired private FoodService foodService; @Autowired private TypeService typeService; /** * 菜品管理页面 */ @GetMapping("/foods") public String foods(@PageableDefault(size = 10, sort = {"id"}, direction = Sort.Direction.DESC) Pageable pageable, Model model) { model.addAttribute("types", typeService.listType()); model.addAttribute("page", foodService.listFood(pageable)); return "admin/foods"; } /** * 按分类查询菜品 */ @PostMapping("/foods/search") public String search(@PageableDefault(size = 10, sort = {"id"}, direction = Sort.Direction.DESC) Pageable pageable, @RequestParam Integer typeId, Model model) { if (typeId != null && typeId != 0) { model.addAttribute("page", foodService.listFood(pageable, typeId)); } else { model.addAttribute("page", foodService.listFood(pageable)); } return "admin/foods :: foodList"; } /** * 跳转菜品添加页面 */ @GetMapping("/foods/input") public String input(Model model) { model.addAttribute("types", typeService.listType()); model.addAttribute("food", new Food()); return "admin/foods-input"; } /** * 跳转菜品修改页面 */ @GetMapping("/foods/{id}/input") public String edit(@PathVariable Integer id, Model model) { model.addAttribute("types", typeService.listType()); model.addAttribute("food", foodService.getFood(id)); return "admin/foods-input"; } /** * POST提交 添加、修改菜品 */ @PostMapping("/foods") public String post(@Valid Food food, BindingResult bindingResult, RedirectAttributes redirectAttributes, Model model) { if (food.getType().getId() == null) { bindingResult.rejectValue("name", "nameError", "分类不能为空"); } if (bindingResult.hasErrors()) { model.addAttribute("types", typeService.listType()); return "admin/foods-input"; } Food food1 = foodService.getFoodByName(food.getName()); if (food.getId() == null) {//添加 if (food1 != null) {//不能添加已存在的菜品名称 bindingResult.rejectValue("name", "nameError", "菜品已存在"); model.addAttribute("types", typeService.listType()); return "admin/foods-input"; } Food f = foodService.saveFood(food); if (f == null) {//没保存成功 redirectAttributes.addFlashAttribute("message", "添加失败"); } else {//保存成功 redirectAttributes.addFlashAttribute("message", "添加成功"); } } else {//修改 if (food1 != null && food1.getId() != food.getId()) {//不能修改成其它已存在的菜品名称 bindingResult.rejectValue("name", "nameError", "菜品已存在"); model.addAttribute("types", typeService.listType()); return "admin/foods-input"; } Food f = foodService.updateFood(food.getId(), food); if (f == null) {//没保存成功 redirectAttributes.addFlashAttribute("message", "修改失败"); } else {//保存成功 redirectAttributes.addFlashAttribute("message", "修改成功"); } } return "redirect:/admin/foods"; } /** * 删除菜品 */ @GetMapping("/foods/{id}/delete") public String delete(@PathVariable Integer id, RedirectAttributes redirectAttributes) { foodService.deleteFood(id); redirectAttributes.addFlashAttribute("message", "删除成功"); return "redirect:/admin/foods"; } }