Spring Boot 2.1.0.RELEASE 使用 Redis 缓存数据

Spring对缓存的支持，可以参考这篇文章。

本例基于Spring Boot 2.1.0.RELEASE 整合 Redis，在此基础上增加使用Redis缓存数据。

修改RedisConfig配置类，增加CacheManager的配置，修改后的RedisConfig如下：

package com.wuychn;

import com.alibaba.fastjson.support.spring.GenericFastJsonRedisSerializer;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.CacheManager;
import org.springframework.cache.interceptor.KeyGenerator;
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.RedisTemplate;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;

@Configuration
public class RedisConfig {

    @Bean
    public RedisTemplate redisTemplate(RedisConnectionFactory connectionFactory) {
        RedisTemplate redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(connectionFactory);
        GenericFastJsonRedisSerializer genericFastJsonRedisSerializer = new GenericFastJsonRedisSerializer();
        redisTemplate.setValueSerializer(genericFastJsonRedisSerializer);
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }

    // 缓存管理器，与SpringBoot 1.x有很大区别
    @Bean
    public CacheManager cacheManager(RedisConnectionFactory connectionFactory) {
        RedisSerializationContext.SerializationPair