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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
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。
pom.xml文件中引入spring-boot-starter-redis,版本可自行选择
<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=0
spring.redis.host=127.0.0.1
spring.redis.port=6379
spring.redis.passWord=pwd
spring.redis.timeout=0
spring.redis.pool.max-active=8
spring.redis.pool.max-idle=8
spring.redis.pool.max-wait=-1
spring.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);
}
}
运行TestCRedis.t1(),控制台打印“testvalue”redis连接成功
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 = 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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