Redis设置database不生效的解决方案

spring:
  redis:
    host: ${REDIS_HOST:localhost}
    port: ${REDIS_PORT:6379}
    password: ${REDIS_PASSWORD:}
    database: ${REDIS_DATABASE:0}

@ConfigurationProperties("spring.redis")
public class RedisConfiguration {
	private String host;
	private int port;
	private String password;
	private int database;
    // getters and setters...
}

<!-- lettuce-core -->
<dependency>
    <groupId>io.lettuce.core</groupId>
    <artifactId>lettuce-core</artifactId>
</dependency>

/**
* Creates an instance that can be served by the pool and wrap it in a
* {@link PooledObject} to be managed by the pool.
*
* @return a {@code PooledObject} wrapping an instance that can be served by the pool
*
* @throws Exception if there is a problem creating a new instance,
*    this will be propagated to the code requesting an object.
*/
PooledObject makeObject()throws Exception;
/**
* Destroys an instance no longer needed by the pool.
* <p>* It is important for implementations of this method to be aware that there
* is no guarantee about what state <code>obj</code>will be in and the
* implementation should be prepared to handle unexpected errors.
* </p> * <p>* Also, an implementation must take in to consideration that instances lost
* to the garbage collector may never be destroyed.
* </p>*
* @param p a {@code PooledObject} wrapping the instance to be destroyed
*
* @throws Exception should be avoided as it may be swallowed by
*    the pool implementation.
*
* @see #validateObject
* @see ObjectPool#invalidateObject
*/
void destroyObject(PooledObject p)throws Exception;
/**
* Ensures that the instance is safe to be returned by the pool.
*
* @param p a {@code PooledObject} wrapping the instance to be validated
*
* @return <code>false</code> if <code>obj</code>is not valid and should
*        be dropped from the pool, <code>true</code>otherwise.
*/
boolean validateObject(PooledObject p);
/**
* Reinitializes an instance to be returned by the pool.
*
* @param p a {@code PooledObject} wrapping the instance to be activated
*
* @throws Exception if there is a problem activating <code>obj</code>,
*    this exception may be swallowed by the pool.
*
* @see #destroyObject
*/
void activateObject(PooledObject p)throws Exception;
/**
* Uninitializes an instance to be returned to the idle object pool.
*
* @param p a {@code PooledObject} wrapping the instance to be passivated
*
* @throws Exception if there is a problem passivating <code>obj</code>,
*    this exception may be swallowed by the pool.
*
* @see #destroyObject
*/
void passivateObject(PooledObject p)throws Exception;