Spring boot 2.0.x 集成 redis 使用 @Cacheable等注解

Spring boot 2.0.x 集成 redis

在pom.xml中导入

    
          redis.clients  
          jedis          
         
                 
         com.fasterxml.jackson.core  
          jackson-annotations  
        
        
          org.springframework.boot  
          spring-boot-starter-redis  
          RELEASE  
        

在springboot的application.yml 中进行redis参数设置

spring:  
  redis:  
    database: 0  
    host: 127.0.0.1  
    port: 6379   
    timeout: 5000    

新建配置类RedisConfig.java

1. package com.project.config;  
2.   
3. import com.fasterxml.jackson.annotation.JsonAutoDetect;  
4. import com.fasterxml.jackson.annotation.PropertyAccessor;  
5. import com.fasterxml.jackson.databind.ObjectMapper;  
6. import org.springframework.cache.CacheManager;  
7. import org.springframework.cache.annotation.CachingConfigurerSupport;  
8. import org.springframework.cache.annotation.EnableCaching;  
9. import org.springframework.context.annotation.Bean;  
10. import org.springframework.context.annotation.Configuration;  
11. import org.springframework.data.redis.cache.RedisCacheConfiguration;  
12. import org.springframework.data.redis.cache.RedisCacheManager;  
13. import org.springframework.data.redis.connection.RedisConnectionFactory;  
14. import org.springframework.data.redis.core.RedisTemplate;  
15. import org.springframework.data.redis.core.StringRedisTemplate;  
16. import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;  
17. import org.springframework.data.redis.serializer.RedisSerializer;  
18. import org.springframework.data.redis.serializer.StringRedisSerializer;  
19.   
20. import java.time.Duration;  
21.    
22.   
23. @Configuration  
24. @EnableCaching  
25. public class RedisConfig extends CachingConfigurerSupport {  
26.   
27.     @Bean  
28.     public CacheManager cacheManager(RedisConnectionFactory factory) {  
29.         RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()  
30.                 .entryTtl(Duration.ofSeconds(60))  
31.                 .disableCachingNullValues();  
32.   
33.         return RedisCacheManager.builder(factory)  
34.                 .cacheDefaults(config)  
35.                 .transactionAware()  
36.                 .build();  
37.     }  
38.   
39.     @Bean  
40.     public RedisTemplate redisTemplate(RedisConnectionFactory factory) {  
41.         StringRedisTemplate template = new StringRedisTemplate(factory);  
42.   
43.         RedisSerializer keySerializer = new StringRedisSerializer(); // 设置key序列化类，否则key前面会多了一些乱码  
44.         template.setKeySerializer(keySerializer);  
45.         setValueSerializer(template);//设置value序列化  
46.         template.afterPropertiesSet();  
47.         template.setEnableTransactionSupport(true);  
48.         return template;  
49.     }  
50.   
51.     private void setValueSerializer(StringRedisTemplate template) {  
52.         @SuppressWarnings({"rawtypes", "unchecked"})  
53.         Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);  
54.         ObjectMapper om = new ObjectMapper();  
55.         om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);  
56.         om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);  
57.         jackson2JsonRedisSerializer.setObjectMapper(om);  
58.         template.setValueSerializer(jackson2JsonRedisSerializer);  
59.     }   
60. }   

完成以上步骤即可使用@Cacheable等缓存注解

1. @Service  
2. public class ResourcesOptionService {  
3.       
4.     @Cacheable(value = "xxx" ,key = "#type")  
5.     public List searchxxxlist(String type ,ExpressionList list){  
6.            
7.         List xxxlist= list.findList();  
8.         System.out.println("进入缓存");  
9.         return xxxlist;  
10.     }  
11. }  

具体注解详情请自行百度

以下链接为@Cacheable等注解 操作方式详解

https://blog.csdn.net/dreamhai/article/details/80642010

https://blog.csdn.net/qq_24084605/article/details/81003369

https://blog.csdn.net/BinshaoNo_1/article/details/84579326