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【Redis】7.与Spring Boot整合

作者:互联网

整合步骤

  1. 在pom.xml文件中引入redis相关依赖。

    <!-- redis -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>
    
    <!-- spring2.X集成redis所需common-pool2-->
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-pool2</artifactId>
        <version>2.6.0</version>
    </dependency>
    
  2. application.properties配置redis配置。

    #Redis服务器地址
    spring.redis.host=192.168.140.136
    #Redis服务器连接端口
    spring.redis.port=6379
    #Redis数据库索引(默认为0)
    spring.redis.database= 0
    #连接超时时间(毫秒)
    spring.redis.timeout=1800000
    #连接池最大连接数(使用负值表示没有限制)
    spring.redis.lettuce.pool.max-active=20
    #最大阻塞等待时间(负数表示没限制)
    spring.redis.lettuce.pool.max-wait=-1
    #连接池中的最大空闲连接
    spring.redis.lettuce.pool.max-idle=5
    #连接池中的最小空闲连接
    spring.redis.lettuce.pool.min-idle=0
    
  3. 添加redis配置类。

    @EnableCaching
    @Configuration
    public class RedisConfig extends CachingConfigurerSupport {
    
        @Bean
        public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
            RedisTemplate<String, Object> template = new RedisTemplate<>();
            RedisSerializer<String> redisSerializer = new StringRedisSerializer();
            Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
            ObjectMapper om = new ObjectMapper();
            om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
            om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
            jackson2JsonRedisSerializer.setObjectMapper(om);
            template.setConnectionFactory(factory);
            //key序列化方式
            template.setKeySerializer(redisSerializer);
            //value序列化
            template.setValueSerializer(jackson2JsonRedisSerializer);
            //value hashmap序列化
            template.setHashValueSerializer(jackson2JsonRedisSerializer);
            return template;
        }
    
        @Bean
        public CacheManager cacheManager(RedisConnectionFactory factory) {
            RedisSerializer<String> redisSerializer = new StringRedisSerializer();
            Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
            //解决查询缓存转换异常的问题
            ObjectMapper om = new ObjectMapper();
            om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
            om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
            jackson2JsonRedisSerializer.setObjectMapper(om);
            // 配置序列化(解决乱码的问题),过期时间600秒
            RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
                    .entryTtl(Duration.ofSeconds(600))
                    .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))
                    .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer))
                    .disableCachingNullValues();
            RedisCacheManager cacheManager = RedisCacheManager.builder(factory)
                    .cacheDefaults(config)
                    .build();
            return cacheManager;
        }
    }
    
  4. 测试,RedisTestController中添加测试方法。

    @RestController
    @RequestMapping("/redisTest")
    public class RedisTestController {
        @Autowired
        private RedisTemplate redisTemplate;
    
        @GetMapping
        public String testRedis() {
            //设置值到redis
            redisTemplate.opsForValue().set("name", "lucy");
            //从redis获取值
            String name = (String) redisTemplate.opsForValue().get("name");
            return name;
        }
    }
    

标签:om,template,Spring,redis,jackson2JsonRedisSerializer,Boot,spring,new,Redis
来源: https://www.cnblogs.com/haojinglei/p/15168320.html