缓存套餐

---

引入依赖

导入 Spring Cache 和 Redis 相关 maven 坐标，在初始工程中已导入，此步可跳过

<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-cache</artifactId>
</dependency>

加入 @EnableCaching 注解

在启动类上加入@EnableCaching 注解，开启缓存注解功能

package com.sky;

import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@SpringBootApplication
@EnableTransactionManagement //开启注解方式的事务管理
@Slf4j
@EnableCaching
public class SkyApplication {
    public static void main(String[] args) {
        SpringApplication.run(SkyApplication.class, args);
        log.info("server started");
    }
}

SetmealController

用户端

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") //key: setmealCache::100
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);
}

管理端

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

/**
 * 新增套餐
 *
 * @param setmealDTO
 * @return
 */
@PostMapping
@ApiOperation("新增套餐")
@CacheEvict(cacheNames = "setmealCache",key = "#setmealDTO.categoryId")//key: setmealCache::100
public Result save(@RequestBody SetmealDTO setmealDTO) {
    setmealService.saveWithDish(setmealDTO);
    return Result.success();
}

/**
 * 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();
}

/**
 * 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();
}