springboot串連redis並動態切換database

springboot串連redis並動態切換database

眾所周知，redis多有個db，在jedis中可以使用select方法去動態選擇redis的database，但在springboot提供的StringRedisTemplate中確，沒有該方法，好在StringRedisTemplate預留了一個setConnectionFactory方法，本文主為通過修改ConnectionFactory從而達到動態切換database的效果。 springboot串連redis

pom.xml檔案中引入spring-boot-starter-redis,版本可自行選擇

<dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-redis</artifactId>    <version>1.3.8.RELEASE</version></dependency>

application.properties

#redis配置spring.redis.database=0spring.redis.host=127.0.0.1spring.redis.port=6379spring.redis.password=pwdspring.redis.timeout=0spring.redis.pool.max-active=8spring.redis.pool.max-idle=8spring.redis.pool.max-wait=-1spring.redis.pool.min-idle=0

TestCRedis.java

@RunWith(SpringJUnit4ClassRunner.class)@SpringBootTest(classes = Application.class)public class TestCRedis{    protected static Logger LOGGER = LoggerFactory.getLogger(TestCRedis.class);    @Autowired    private StringRedisTemplate stringRedisTemplate;    @Test    public void t1(){        ValueOperations<String, String> stringStringValueOperations = stringRedisTemplate.opsForValue();        stringStringValueOperations.set("testkey","testvalue");        String testkey = stringStringValueOperations.get("testkey");        LOGGER.info(testkey);    }}

運行TestCRedis.t1(),控制台列印“testvalue”redis串連成功 redis動態切換database

首先使用redis-cli,在redis的0、1、2三個庫中，分別設定test 的值，分別為;0、1、2

TestCRedis.java

@RunWith(SpringJUnit4ClassRunner.class)@SpringBootTest(classes = Application.class)public class TestCRedis{    protected static Logger LOGGER = LoggerFactory.getLogger(TestCRedis.class);    @Autowired    private StringRedisTemplate stringRedisTemplate;    @Test    public void t1(){        ValueOperations<String, String> stringStringValueOperations = stringRedisTemplate.opsForValue();        stringStringValueOperations.set("testkey","testvalue");        String testkey = stringStringValueOperations.get("testkey");        LOGGER.info(testkey);    }    @Test    public void t2() {        for (int i = 0; i <= 2; i++) {            JedisConnectionFactory jedisConnectionFactory = (JedisConnectionFactory) stringRedisTemplate.getConnectionFactory();            jedisConnectionFactory.setDatabase(i);            stringRedisTemplate.setConnectionFactory(jedisConnectionFactory);            ValueOperations valueOperations = stringRedisTemplate.opsForValue();            String test = (String) valueOperations.get("test");            LOGGER.info(test);        }    }}

運行TestCRedis.t2(),控制台分別列印 “0、1、2”，database切換成功