springboot连接redis并动态切换database的实现⽅法
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
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-redis</artifactId>
<version>1.3.8.RELEASE</version>
</dependency>
application.properties
#redis配置
TestCRedis.java
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = Application.class)
public class TestCRedis{
protected static Logger LOGGER = Logger(TestCRedis.class);
@Autowired
private StringRedisTemplate stringRedisTemplate;
@Test
public void t1(){
ValueOperations<String, String> stringStringValueOperations = stringRedisTemplate.opsForValue();
stringStringValueOperations.set("testkey","testvalue");
String testkey = ("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
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = Application.class)
public class TestCRedis{
protected static Logger LOGGER = Logger(TestCRedis.class);
spring framework版本@Autowired
private StringRedisTemplate stringRedisTemplate;
@Test
public void t1(){
ValueOperations<String, String> stringStringValueOperations = stringRedisTemplate.opsForValue();
stringStringValueOperations.set("testkey","testvalue");
String testkey = ("testkey");
LOGGER.info(testkey);
}
public void t2() {
for (int i = 0; i <= 2; i++) {
JedisConnectionFactory jedisConnectionFactory = (JedisConnectionFactory) ConnectionFactory();
jedisConnectionFactory.setDatabase(i);
stringRedisTemplate.setConnectionFactory(jedisConnectionFactory);
ValueOperations valueOperations = stringRedisTemplate.opsForValue();
String test = (String) ("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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