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1.实现思路

具体的实现思路如下：

①导入Spring Cache和Redis相关的Maven坐标

②在启动类加入@EnableCaching注解，开启缓存注解功能

③在用户端接口SetmealController的list方法上加入@Cacheable注解

/*** 条件查询** @param categoryId* @return*/@GetMapping("/list")@ApiOperation("根据分类id查询套餐")@Cacheable(cacheNames = "setmealCache",key = "#categoryId")public Result<List<Setmeal>> list(Long categoryId) {Setmeal setmeal = new Setmeal();setmeal.setCategoryId(categoryId);setmeal.setStatus(StatusConstant.ENABLE);List<Setmeal> list = setmealService.list(setmeal);return Result.success(list);}

④在管理端接口SetmealController的save、delete、update、startOrStop等方法上加入CacheEvict注解

package com.sky.controller.admin;import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.SetmealService;
import com.sky.vo.SetmealVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.web.bind.annotation.*;import java.util.List;/*** 套餐管理*/
@RestController
@RequestMapping("/admin/setmeal")
@Api(tags = "套餐相关接口")
@Slf4j
public class SetmealController {@Autowiredprivate SetmealService setmealService;/*** 新增套餐* @param setmealDTO* @return*/@PostMapping@ApiOperation("新增套餐")@CacheEvict(cacheNames = "setmealCache",key = "setmealDTO.categoryId")public Result save(@RequestBody SetmealDTO setmealDTO) {setmealService.saveWithDish(setmealDTO);return Result.success();}/*** 分页查询* @param setmealPageQueryDTO* @return*/@GetMapping("/page")@ApiOperation("分页查询")public Result<PageResult> page(SetmealPageQueryDTO setmealPageQueryDTO) {PageResult pageResult = setmealService.pageQuery(setmealPageQueryDTO);return Result.success(pageResult);}/*** 批量删除套餐* @param ids* @return*/@DeleteMapping@ApiOperation("批量删除套餐")@CacheEvict(cacheNames = "setmealCache",allEntries = true)public Result delete(@RequestParam List<Long> ids){setmealService.deleteBatch(ids);return Result.success();}/*** 根据id查询套餐，用于修改页面回显数据** @param id* @return*/@GetMapping("/{id}")@ApiOperation("根据id查询套餐")public Result<SetmealVO> getById(@PathVariable Long id) {SetmealVO setmealVO = setmealService.getByIdWithDish(id);return Result.success(setmealVO);}/*** 修改套餐** @param setmealDTO* @return*/@PutMapping@ApiOperation("修改套餐")@CacheEvict(cacheNames = "setmealCache",allEntries = true)public Result update(@RequestBody SetmealDTO setmealDTO) {setmealService.update(setmealDTO);return Result.success();}/*** 套餐起售停售* @param status* @param id* @return*/@PostMapping("/status/{status}")@ApiOperation("套餐起售停售")@CacheEvict(cacheNames = "setmealCache",allEntries = true)public Result startOrStop(@PathVariable Integer status, Long id) {setmealService.startOrStop(status, id);return Result.success();}
}