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 前言：SpringBoot中使用Cache缓存可以提高对缓存的开发效率

此图片是SpringBootCache常用注解

第一步：引入依赖

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

 第二步：在启动类添加@EnableCachin

@EnableCaching    //开启缓存注解功能

 第三步：在实体类上继承序列化接口

public class User implements Serializable 

第四步：使用注解

    @PostMapping("/add")@CachePut(cacheNames = "userCache",key = "#user.id")   //缓存数据public User addInfo(@RequestBody User user){boolean save = userService.save(user);return user;}@GetMapping("/get/{id}")@Cacheable(cacheNames = "userCache", key = "#id")     //查询redis中是否存储的有数据，有数据直接返回，没有数据前往MySQL查询数据public User getUser(@PathVariable Integer id){return userService.getById(id);}@DeleteMapping("/del/{id}")@CacheEvict(cacheNames = "userCache",key = "#id")    //删除数据的时候同时删除缓存数据public void delUser(@PathVariable Integer id){userService.removeById(id);}@DeleteMapping("/delAll")@CacheEvict(cacheNames = "userCache",allEntries = true)    //删除全部数据的时候同时删除缓存中全部数据public void delUser(){userService.deleteAll();}