Redis实现分布式缓存（实现存取对象），Spring与Spring Boot配置

Spring Boot

MAVEN

<dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-data-redis</artifactId></dependency>

配置文件

# Redis数据库索引（默认为0）spring.redis.database=0# Redis服务器地址spring.redis.host=127.0.0.1# Redis服务器连接端口spring.redis.port=6379# Redis服务器连接密码（默认为空）spring.redis.password=# 连接池最大连接数（使用负值表示没有限制）spring.redis.pool.max-active=8# 连接池最大阻塞等待时间（使用负值表示没有限制）spring.redis.pool.max-wait=-1# 连接池中的最大空闲连接spring.redis.pool.max-idle=8# 连接池中的最小空闲连接spring.redis.pool.min-idle=0# 连接超时时间（毫秒）spring.redis.timeout=0

配置类

package com.example.demo.Config;import org.springframework.beans.factory.annotation.Value;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.core.RedisTemplate;import org.springframework.data.redis.core.StringRedisTemplate;import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;import com.fasterxml.jackson.annotation.JsonAutoDetect;import com.fasterxml.jackson.annotation.PropertyAccessor;import com.fasterxml.jackson.databind.ObjectMapper;/** * Redis缓存配置类 * @author szekinwin * */@Configuration@EnableCachingpublic class RedisConfig extends CachingConfigurerSupport{    //缓存管理器    @Bean    public CacheManager cacheManager(@SuppressWarnings("rawtypes") RedisTemplate redisTemplate) {        RedisCacheManager cacheManager = new RedisCacheManager(redisTemplate);        //设置缓存过期时间        cacheManager.setDefaultExpiration(10000);        return cacheManager;    }    @Bean    public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory){        StringRedisTemplate template = new StringRedisTemplate(factory);        setSerializer(template);//设置序列化工具        template.afterPropertiesSet();        return template;    }    private void setSerializer(StringRedisTemplate template){        @SuppressWarnings({ "rawtypes", "unchecked" })        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.setValueSerializer(jackson2JsonRedisSerializer);    }}

工具类

package com.example.demo.Util;import java.io.Serializable;import java.util.Set;import java.util.concurrent.TimeUnit;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.data.redis.core.RedisTemplate;import org.springframework.data.redis.core.ValueOperations;import org.springframework.stereotype.Component;/** * redicache 工具类 * */@SuppressWarnings("unchecked")@Componentpublic class RedisUtils {    @SuppressWarnings("rawtypes")    @Autowired    private RedisTemplate redisTemplate;    /**     * 批量删除对应的value     *     * @param keys     */    public void remove(final String... keys) {        for (String key : keys) {            remove(key);        }    }    /**     * 批量删除key     *     * @param pattern     */    public void removePattern(final String pattern) {        Set<Serializable> keys = redisTemplate.keys(pattern);        if (keys.size() > 0)            redisTemplate.delete(keys);    }    /**     * 删除对应的value     *     * @param key     */    public void remove(final String key) {        if (exists(key)) {            redisTemplate.delete(key);        }    }    /**     * 判断缓存中是否有对应的value     *     * @param key     * @return     */    public boolean exists(final String key) {        return redisTemplate.hasKey(key);    }    /**     * 读取缓存     *     * @param key     * @return     */    public Object get(final String key) {        Object result = null;        ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();        result = operations.get(key);        return result;    }    /**     * 写入缓存     *     * @param key     * @param value     * @return     */    public boolean set(final String key, Object value) {        boolean result = false;        try {            ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();            operations.set(key, value);            result = true;        } catch (Exception e) {            e.printStackTrace();        }        return result;    }    /**     * 写入缓存，并设置失效时间     *     * @param key     * @param value     * @return     */    public boolean set(final String key, Object value, Long expireTime) {        boolean result = false;        try {            ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();            operations.set(key, value);            redisTemplate.expire(key, expireTime, TimeUnit.SECONDS);            result = true;        } catch (Exception e) {            e.printStackTrace();        }        return result;    }}

另外Spring配置参考spring+redis分布缓存