springboot use of cache and redis

Knowledge Point: springboot used in cache and redis

 (1) springboot, the integrated cache, we just need to, in the entrance class plus @EnableCaching to open the cache

 For example: in the service layer and CacheEvict @Cacheable

 

 // add the cache 
@Cacheable ( cacheNames = "TestCACHE" , Key = "#root. MethodName + '_' + #id") 
public the Map <String , Object> testSetCache (Integer ID) { 
the Map <String , Object> = User userMapper.findUserById (ID) ; 
return User ; 
} 

// clear the cache 
@CacheEvict ( cacheNames = "TestCACHE" , allEntries = to true) 
public Boolean testEvictCache () { 
 return to true; 
} 

(2) is introduced redis dependent, data cache will redis into the database and then fetch the data from redis 

a. dependency introduced

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

 b.application.yml provided connections arranged redis

redis: 
  Host: 192.10.21.237 
  Port: 6379 Database: . 5 password: timeout: 1800000 jedis: the pool: max-IDLE: 10 min-IDLE: 0 max-Active: 10 max the wait-: 1000 stored data redis following problems: garbled key will summarize the principles 1.cache other usage 2.springboot the following reference: https: //blog.csdn.net/weixin_36279318/article/details/82820880