spring中redis怎么用

spring中redis怎么用?

在Spring中使用Redis

Java中操作Redis使用的是Jedis，首先在pom.xml中加入相关依赖：

<!-- redis cache related.....start --> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-redis</artifactId> <version>1.6.0.RELEASE</version> </dependency> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.7.3</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-pool2 --> <dependency>     <groupId>org.apache.commons</groupId>     <artifactId>commons-pool2</artifactId>     <version>2.4.2</version> </dependency> <!-- redis cache related.....end -->

然后实现配置类：

package com.ehelp.util;   import org.springframework.cache.CacheManager; import org.springframework.cache.annotation.CachingConfigurerSupport; import org.springframework.cache.annotation.EnableCaching; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.data.redis.cache.RedisCacheManager; import org.springframework.data.redis.connection.RedisConnectionFactory; import org.springframework.data.redis.connection.jedis.JedisConnectionFactory; import org.springframework.data.redis.core.RedisTemplate;   @Configuration @EnableCaching public class RedisCacheConfig extends CachingConfigurerSupport {   @Bean public JedisConnectionFactory redisConnectionactory() { JedisConnectionFactory redisConnectionFactory = new JedisConnectionFactory(); redisConnectionFactory.setHostName("localhost"); redisConnectionFactory.setPort(6379); return redisConnectionFactory; }   @Bean public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory cf) { RedisTemplate<String, String> redisTemplate = new RedisTemplate<String, String>(); redisTemplate.setConnectionFactory(cf); return redisTemplate; } @Bean public CacheManager cacheManager(RedisTemplate redisTemplate) { RedisCacheManager cacheManger = new RedisCacheManager(redisTemplate); cacheManger.setDefaultExpiration(5); //cache过期时间 return cacheManger; } }

注意：

设置 Cache 过期时间要合适，太长就长期有效，太短你看不到测试结果。建议 5-20秒。

最后直接在需要添加缓存的方法上使用注解就可实现缓存：

更多Redis相关知识，请访问Redis使用教程栏目！

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