springboot初学---使用redis

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

# REDIS (RedisProperties)
# 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

@Configuration
@EnableCaching
public class RedisConfig extends CachingConfigurerSupport {

    @Bean
    public KeyGenerator keyGenerator() {
        return new KeyGenerator() {
            @Override
            public Object generate(Object target, Method method, Object... params) {
                StringBuilder sb = new StringBuilder();
                sb.append(target.getClass().getName());
                sb.append(method.getName());
                for (Object obj : params) {
                    sb.append(obj.toString());
                }
                return sb.toString();
            }
        };
    }

    @Bean
    public CacheManager cacheManager(RedisTemplate<?, ?> redisTemplate) {
        CacheManager cacheManager = new RedisCacheManager(redisTemplate);

        //设置缓存过期时间
        //rcm.setDefaultExpiration(60);//秒
        return cacheManager;
    }

    @Bean
    @SuppressWarnings("all")
    public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory) {
        RedisTemplate template = new RedisTemplate<>();
        // 配置连接工厂
        template.setConnectionFactory(factory);

        //使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值（默认使用JDK的序列化方式）
        Jackson2JsonRedisSerializer jacksonSeial = new Jackson2JsonRedisSerializer(Object.class);

        ObjectMapper om = new ObjectMapper();
        // 指定要序列化的域，field,get和set,以及修饰符范围，ANY是都有包括private和public
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        // 指定序列化输入的类型，类必须是非final修饰的，final修饰的类，比如String,Integer等会跑出异常
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jacksonSeial.setObjectMapper(om);

        // 值采用json序列化
        template.setValueSerializer(jacksonSeial);
        //使用StringRedisSerializer来序列化和反序列化redis的key值
        template.setKeySerializer(new StringRedisSerializer());

        // 设置hash key 和value序列化模式
        template.setHashKeySerializer(new StringRedisSerializer());
        template.setHashValueSerializer(jacksonSeial);
        template.afterPropertiesSet();

        return template;
    }

@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest
public class RedisTests {
    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    @Autowired
    private RedisTemplate redisTemplate;

    @Test
    public void test() throws Exception {
        stringRedisTemplate.opsForValue().set("aaa", "111");
        Assert.assertEquals("111", stringRedisTemplate.opsForValue().get("aaa"));
    }

    @Test
    public void testObj() throws Exception {
        User user = new User(null, "aa@126.com", "aa", "aa123456", "aa", null);
        ValueOperations<String, User> operations = redisTemplate.opsForValue();
        operations.set("com.neox", user);
        operations.set("com.neo.f", user, 50, TimeUnit.SECONDS);
        Thread.sleep(1000);
        //redisTemplate.delete("com.neo.f");
        boolean exists = redisTemplate.hasKey("com.neo.f");
        if (exists) {
            System.out.println("exists is true");
        } else {
            System.out.println("exists is false");
        }
        // Assert.assertEquals("aa", operations.get("com.neo.f").getUserName());
    }
}

/**
 * 使用hibernate方式连接的数据库
 * @param userName
 * @param email
 * @return
*/
@RequestMapping("/getUser")
@Cacheable(value = "user-key")
public User getUser(String userName, String email) {
　　User user = userService.findByUserNameOrEmil(userName, email);
　　System.out.println("若下面没出现“无缓存的时候调用”字样且能打印出数据表示测试成功");
　　return user;
}

<!-- session共享问题 -->
<dependency>
    <groupId>org.springframework.session</groupId>
    <artifactId>spring-session-data-redis</artifactId>
</dependency>

@Configuration
@EnableRedisHttpSession(maxInactiveIntervalInSeconds = 86400 * 30)
public class SessionConfig {

}

/**
 * 测试session共享问题
 * @param session
 * @return
 */
@RequestMapping("/uid")
public String uid(HttpSession session) {
    UUID uid = (UUID) session.getAttribute("uid");
    if (uid == null) {
        uid = UUID.randomUUID();
    }
    session.setAttribute("uid", uid);
    return session.getId();
}

t<spring:session:sessions:db031986-8ecc-48d6-b471-b137a3ed6bc4
t(spring:session:expirations:1472976480000