本文将为大家详细介绍SpringBoot集成springcache和redis的方法，内容详细步骤清晰，细节处理妥当，希望大家通过这篇文章有所收获。

添加service.UserService接口，再创建实现类service.impl.UserServiceimpl，记得实现类要加上@Service注解。并实现user的增删改查功能。同时将Controller的调用改成UserService。

<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-cache</artifactId> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-pool2</artifactId> </dependency>4.配置redis

server: port: 8090# 扫描mapper.xml文件mybatis: mapper-locations: - classpath:mapping/*.xmlspring: application: name: springboot-ssm datasource: type: com.alibaba.druid.pool.DruidDataSource driver-class-name: com.mysql.cj.jdbc.Driver url: jdbc:mysql://127.0.0.1:3306/springboot?serverTimezone=GMT%2B8&useUnicode=true&characterEncoding=utf-8&useSSL=false username: root password: 123zxc redis: host: 127.0.0.1 port: 6379 password: 123zxc database: 0 lettuce: pool: max-active: 32 max-wait: 300ms max-idle: 16 min-idle: 85.启动类加上@EnableCaching注解6.Service加缓存

@Servicepublic class UserServiceImpl implements UserService { private Logger logger = LoggerFactory.getLogger(UserServiceImpl.class); @Resource private UserMapper userMapper; @Override @Cacheable(value = "user:id",key = "#id") public User getOneUser(int id) { logger.info("get one go mysql ..."); return userMapper.selectByPrimaryKey(id); } @Cacheable(value = "user:list") @Override public List<User> findAll() { logger.info("find all go mysql ..."); return userMapper.list(); } @CacheEvict(value = "user:list",allEntries = true) @Override public int add(User user) { return userMapper.insert(user); } @Caching( evict = { @CacheEvict(value = "user:id", key = "#user.id"), @CacheEvict(value = "user:list", allEntries = true) } ) @Override public int update(User user) { return userMapper.updateByPrimaryKey(user); } @Caching( evict = { @CacheEvict(value = "user:id", key = "#id"), @CacheEvict(value = "user:list", allEntries = true) } ) @Override public int delete(int id) { return delete(id); }}以上SpringBoot默认对redis 的配置，如果我们想修改redis的配置，如序列化方式、默认过期时间等等。则需要我们创建RedisConfig.java配置类。二.手动配置RedisConfig.java

具体配置如下，其中一个是操作redis 的RedisTemplate，一个是缓存使用的CacheManager,其中修改了序列化方式，所以要把原来的缓存清空。

@Component@Configuration@ConfigurationProperties("spring.cache.redis")public class RedisConfig extends CachingConfigurerSupport { private Duration timeToLive = Duration.ofMinutes(30); public void setTimeToLive(Duration timeToLive) { this.timeToLive = timeToLive; } @Bean public CacheManager cacheManager(RedisConnectionFactory factory) { RedisSerializer<String> redisSerializer = new StringRedisSerializer(); Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class); //解决查询缓存转换异常的问题 ObjectMapper om = new ObjectMapper(); om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY); om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL); jackson2JsonRedisSerializer.setObjectMapper(om); // 配置序列化（解决乱码的问题） RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig() .entryTtl(timeToLive) .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer)) .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer)) .disableCachingNullValues(); RedisCacheManager cacheManager = RedisCacheManager.builder(factory) .cacheDefaults(config) .build(); return cacheManager; } //RedisTemplate配置 @Bean @SuppressWarnings("all") public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) { RedisTemplate<String, Object> template = new RedisTemplate<String, Object>(); template.setConnectionFactory(factory); //配置事务 template.setEnableTransactionSupport(true); 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); StringRedisSerializer stringRedisSerializer = new StringRedisSerializer(); // key采用String的序列化方式 template.setKeySerializer(stringRedisSerializer); // hash的key也采用String的序列化方式 template.setHashKeySerializer(stringRedisSerializer); // value序列化方式采用jackson template.setValueSerializer(jackson2JsonRedisSerializer); // hash的value序列化方式采用jackson template.setHashValueSerializer(jackson2JsonRedisSerializer); template.afterPropertiesSet(); return template; }}二.SpringBoot如何操作Redis

Springboot 操作redis引入的依赖可以不用引入

<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-cache</artifactId></dependency>1.说明

SpringBoot Redis提供一个强大的模版操作redis，它就是RedisTemplate，使用它可以很方便的操作redis 的五大数据类型。下面我们写一个测试类使用RedisTemplate的相关API。

首先把引入spring-boot-starter-test依赖，同时去掉junit依赖，否则会报错！

在test/java/xyz.java1024 下创建RedisTemplateTest测试类，加上@RunWith(SpringRunner.class)
@SpringBootTest(classes = RedisApp.class)注解，指定启动类作用是读取配置信息。具体代码如下：

@RunWith(SpringRunner.class)@SpringBootTest(classes = RedisApp.class)public class RedisTemplateTest { @Resource private RedisTemplate redisTemplate; /** * * 介绍 如何使用 redisTemplate 操作String List Set ZSet Hash五种数据类型 * 本测试只 使用了部分常用的 api，如在集合等复杂数据类型 有更多的api 实现更加强大的功能，查阅相关文档即可！ * */ /** * String 类型set */ @Test public void testSet() { redisTemplate.opsForValue().set("test","this is test"); } /** * String 类型get */ @Test public void testGet() { Object test = redisTemplate.opsForValue().get("test"); System.out.println("test = " + test); } /** * 添加元素 */ @Test public void testLSet() { redisTemplate.opsForList().leftPush("testList","testList1"); } /** * 获取List 的所有元素 */ @Test public void testLGet() { List testList = redisTemplate.opsForList().range("testList", 0, -1); System.out.println("testList = " + testList); } /** * Set类型 set */ @Test public void testSSet() { redisTemplate.opsForSet().add("testSet","testSet1"); } /** * Set 类型get */ @Test public void testSGet() { Set testSet = redisTemplate.opsForSet().members("testSet"); System.out.println("testSet = " + testSet); } /** * hash set */ @Test public void testHSet() { redisTemplate.opsForHash().put("testHash","value1","key1"); redisTemplate.opsForHash().put("testHash","value2","key2"); } /** * hash get */ @Test public void testHget() { Object o = redisTemplate.opsForHash().get("testHash", "value1"); System.out.println("o = " + o); } /** * Zset set */ @Test public void testZSet() { redisTemplate.opsForZSet().add("java1024","SpringBoot",10); redisTemplate.opsForZSet().add("java1024","SpringCloud",3); } /** * Zset get */ @Test public void testZGet() { // 正序 Set all = redisTemplate.opsForZSet().range("java1024", 0, -1); System.out.println("all = " + all); //反序 Set reverseRange = redisTemplate.opsForZSet().reverseRange("java1024", 0, -1); System.out.println("reverseRange = " + reverseRange); }}

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