Spring Boot 2整合Redis做缓存

Spring Boot 2整合Redis做缓存

既然是要用Redis做缓存，自然少不了安装了。但是本文主要讲Spring Boot与Redis整合。安装教程请另行百度！

1.首先是我们的Redis配置类

 1 package com.tyc;
 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.annotation.EnableCaching;
 7 import org.springframework.context.annotation.Bean;
 8 import org.springframework.context.annotation.Configuration;
 9 import org.springframework.data.redis.connection.RedisConnectionFactory;
10 import org.springframework.data.redis.core.RedisTemplate;
11 import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
12 import org.springframework.data.redis.serializer.StringRedisSerializer;
13 
14 /**
15  * @Description: Redis配置类
16  * @Author: wushumin
17  * @CreateDate: 2019/9/12 16:00
18  * @Version: 1.0
19  */
20 @Configuration
21 public class RedisConfig {
22     @Bean
23     @SuppressWarnings("all")
24     public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
25         RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
26         template.setConnectionFactory(factory);
27         Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
28         ObjectMapper om = new ObjectMapper();
29         om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
30         om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
31         jackson2JsonRedisSerializer.setObjectMapper(om);
32         StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
33         // key采用String的序列化方式
34         template.setKeySerializer(stringRedisSerializer);
35         // hash的key也采用String的序列化方式
36         template.setHashKeySerializer(stringRedisSerializer);
37         // value序列化方式采用jackson
38         template.setValueSerializer(jackson2JsonRedisSerializer);
39         // hash的value序列化方式采用jackson
40         template.setHashValueSerializer(jackson2JsonRedisSerializer);
41         template.afterPropertiesSet();
42         return template;
43     }
44 }

package com.tyc.annotation;

import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.data.redis.RedisProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.cache.RedisCacheWriter;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisOperations;
import org.springframework.data.redis.core.StringRedisTemplate;

import java.net.UnknownHostException;
import java.time.Duration;
import java.util.HashMap;
import java.util.Map;

@Configuration
@ConditionalOnClass(RedisOperations.class)
@EnableConfigurationProperties(RedisProperties.class)
public class RedisAutoConfiguration extends CachingConfigurerSupport {//缓存管理器
    @Bean
    public CacheManager cacheManager(RedisConnectionFactory connectionFactory) {
        //缓存配置
        RedisCacheConfiguration userCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
                .entryTtl(Duration.ofSeconds(60)).disableCachingNullValues();
        Map<String, RedisCacheConfiguration> redisCacheConfigurationMap = new HashMap<>();
　　　　　//手动指定缓存模块
        redisCacheConfigurationMap.put("legal", userCacheConfiguration);
        redisCacheConfigurationMap.put("fuzzySearch", userCacheConfiguration);
        //初始化一个RedisCacheWriter
        RedisCacheWriter redisCacheWriter = RedisCacheWriter.nonLockingRedisCacheWriter(connectionFactory);
        RedisCacheConfiguration defaultCacheConfig = RedisCacheConfiguration.defaultCacheConfig();
        //设置默认超过期时间是半小时
        defaultCacheConfig.entryTtl(Duration.ofSeconds(60 * 30));
//        //初始化RedisCacheManager
        RedisCacheManager cacheManager = new RedisCacheManager(redisCacheWriter, defaultCacheConfig, redisCacheConfigurationMap);
        return cacheManager;
    }

}

  @Cacheable(cacheNames = "fuzzySearch", key = "targetClass+methodName+#fuzzySearchName")
    public Map fuzzySearch(String fuzzySearchName) {
        //返回结果集合
        Map resultMap = new LinkedHashMap();
        return resultMap 
}

到这就可以测试了。由于时间原因就先不贴测试截图了。

原文链接:https://www.cnblogs.com/wushumin/p/11641590.html
如有疑问请与原作者联系

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