SpringBoot Redis 2.0.x

redis的安装

在笔者之前的文章中有介绍redis的安装，不会的可以去看笔者之前写的文章redis安装
完成安装后如果不熟悉redis的操作，redis官方文档也有基本操作指南，redis基本操作,如果觉得没问题了就可以开始对redis的整合

maven安装依赖

<dependency>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-starter-data-redis</artifactId>

</dependency>

redis自动会吧cache的依赖带过来，所有不用配置，如图

启动类增加@EnableCaching 注解

@SpringBootApplication

@MapperScan("com.tanoak.mapper")

@EnableCaching

public class BootRedisApplication {

	public static void main(String[] args) {

		SpringApplication.run(BootRedisApplication.class, args);

	}

}

service层增加@Cacheable 注解

@Override

	@Cacheable(cacheNames= "tea")

	public Teacher getTeaById(Integer id) {

		logger.info("进行查询实体 ID为"+id);

		return teacherMapper.getTeaById(id) ;

	}

controller 查询

@GetMapping("/tea/{id}")

public Teacher getTea(@PathVariable("id")Integer id){

		return	teacherService.getTeaById(id) ;

	}

RedisCacheManager 配置

在SpringBoot2.x中，移除了1.x中的配置，因此要配置Json序列化与1.x的差别很大，看代码



@Configuration

@EnableCaching

public class MyRedisConfig extends CachingConfigurerSupport {

    /*

    *自定义键生成策略

    */

	@Bean

	public KeyGenerator KeyGenerator() {

		return (target, method, params) -> {

			StringBuilder sb = new StringBuilder();

			sb.append(target.getClass().getName());

			sb.append(method.getName());

			for (Object obj : params) {

				sb.append(obj.toString());

			}

			return sb.toString();

		};

	}

	@Bean

	public RedisCacheConfiguration redisCacheConfiguration() {

		Jackson2JsonRedisSerializer<Object> 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);

		RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig();

		redisCacheConfiguration = redisCacheConfiguration.serializeValuesWith(

				RedisSerializationContext

						.SerializationPair

						.fromSerializer(jackson2JsonRedisSerializer)

				//设置默认超过期时间是30秒

		).entryTtl(Duration.ofMinutes(30));

		return redisCacheConfiguration;

	}

}

没有打印sql，说明缓存成功，与redis集成就完成了

巴特西

SpringBoot Redis 2.0.x

RedisCacheManager 配置

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