SpringBoot -- 集成Redis/CacheManager

前置工作

• 了解Redis、Cache
• spring-data-redis

Demo

引入 spring-data-Redis

build.gradle

compile ('org.springframework.data:spring-data-redis')compile ('redis.clients:jedis')
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创建 RedisConfig,与Spring Cache进行集成；

• 与Spring Cache进行集成时需要key、value的 序列化，不然会出现 \xAC\xED\x00\x05t\x00\x06之类的
• 与Spring Cache集成后redis key会存入 cachekey+~keys中 xxx~keys

RedisConfig.Java

/** * @author cwenao * @version $Id RedisConfig.java, v 0.1 2017-01-29 15:17 cwenao Exp $$ */@Configuration@EnableCachingpublic class RedisConfig extends CachingConfigurerSupport{    @Bean(name="redisTemplate")    public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory) {        RedisTemplate<String, String> 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(@SuppressWarnings("rawtypes")RedisTemplate redisTemplate) {        RedisCacheManager cacheManager = new RedisCacheManager(redisTemplate);        cacheManager.setDefaultExpiration(3000);        return cacheManager;    }}
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配置 redis连接信息，redis启用了密钥

application.yml

Spring:  redis:    host: 127.0.0.1    port: 6379    password: 111222333444555666    timeout: 5000    pool:      max-idle: 8      min-idle: 0      max-active: 8      max-wait: -1
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创建 Cache 操作类

/** * @author cwenao * @version $Id AbstractCacheSupport.java, v 0.1 2017-01-29 15:35 cwenao Exp $$ */public abstract class AbstractCacheSupport {    /**     * 获取缓存内容     * @param cache     * @param key     * @return     */    protected Object getFromCache(Cache cache, String key) {        final Cache.ValueWrapper valueWrapper = cache.get(key);        return null == valueWrapper ? null : valueWrapper.get();    }    /**     * 设置缓存数据     * @param cache     * @param key     * @param value     * @return     */    protected boolean putCache(Cache cache, String key, Object value) {        if (null == value) {            return false;        }        cache.put(key, value);        return true;    }    /**     * 删除缓存数据     * @param cache     * @param key     * @return     */    protected boolean evictFromCache(Cache cache,Object key){        if(null == key){            return false;        }        cache.evict(key);        return true;    }}
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创建 Controller 类此处用 集成Mybatis时的controller

• 加入缓存key private final static String TEST_REDIS = “test_redis”
• 设置key-value : 
  Cache cache = cacheManager.getCache(TEST_REDIS); 
  putCache(cache,”test_aa”,”111111”);

/** * @author cwenao * @version $Id UserInfoController.java, v 0.1 2017-01-25 18:35 cwenao Exp $$ */@Controllerpublic class UserInfoController extends AbstractCacheSupport {    @Autowired    AccountInfoServer accountInfoServerImpl;    @Autowired    CacheManager cacheManager;    private final static String TEST_REDIS = "test_redis";    @RequestMapping("/accountInfo")    public String accountInfo(String name, ModelMap modelMap) {        Cache cache = cacheManager.getCache(TEST_REDIS);        putCache(cache,"test_aa","111111");        List<AccountInfo> accountInfoList = accountInfoServerImpl.selectByName(name);        modelMap.addAttribute("accountList", accountInfoList);        System.out.println(getFromCache(cache,"test_aa"));        return "userinfo/accountInfo";    }}
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测试

访问 http://localhost:10002/dbserver/accountInfo?name=cwenao

Key 存储在 test_redis~keys中

• test_redis~keys中 test_redis为 Cache的key

value存储在 test_redis~keys中相对应的key

• test_aa 为我们设置的redis key

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代码

代码请移步 Github参考地址

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