众所周知，redis多有个db，在jedis中可以使用select方法去动态的选择redis的database，但在springboot提供的StringRedisTemplate中确，没有该方法，好在StringRedisTemplate预留了一个setConnectionFactory方法，本文主为通过修改ConnectionFactory从而达到动态切换database的效果。
springboot连接redis
pom.xml文件中引入spring-boot-starter-redis,版本可自行选择
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<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-redis</artifactId> <version>1.3.8.RELEASE</version></dependency> |
application.properties
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#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
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@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); }} |
运行TestCRedis.t1(),控制台打印“testvalue”redis连接成功
redis动态切换database
首先使用redis-cli,在redis的0、1、2三个库中，分别设置test 的值，分别为;0、1、2
TestCRedis.java
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@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); } 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); }} |
运行TestCRedis.t2(),控制台分别打印 “0、1、2”，database切换成功
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原文链接：https://www.cnblogs.com/yuwentims/articles/9736905.html
