Spring Cache 整合 Redis 实现高效缓存的方法

@Cacheable(value = "users", key = "#id")
public User getUserById(Long id) {
    // 从数据库查询用户
    return userRepository.findById(id);
}

@CachePut(value = "users", key = "#user.id")
public User updateUser(User user) {
    return userRepository.save(user);
}

@CacheEvict(value = "users", key = "#id")
public void deleteUser(Long id) {
    userRepository.deleteById(id);
}

@Caching(
    put = @CachePut(value = "users", key = "#user.id"),
    evict = @CacheEvict(value = "userList", allEntries = true)
)
public User saveUser(User user) {
    return userRepository.save(user);
}

        <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>

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

    /**
     * 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::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);
    }

    /**
     * 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){
        log.info("新增套餐：{}",setmealDTO);
        setmealService.saveWithDish(setmealDTO);
        return Result.success();
    }
    /**
     * 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){
        log.info("批量删除套餐：{}",ids);
        setmealService.deleteBatch(ids);
        return Result.success();
    }
    /**
     * 修改套餐起售停售状态
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    @ApiOperation("修改套餐起售停售状态")
    @CacheEvict(cacheNames = "setmealCache",allEntries = true)
    public Result startOrStop(@PathVariable("status") Integer status, Long id){
        log.info("套餐起售或停售：{}",id);
        setmealService.startOrStop(status,id);
        return Result.success();
    }