jdbc:oracle:thin:@(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = X.X.X.X)(PORT = 1526))(ADDRESS = (PROTOCOL = TCP)(HOST=X.X.X.X)(PORT = 1526))(LOAD_BALANCE= YES)(FAILOVER = ON))(CONNECT_DATA=(SERVER = DEDICATED)(SERVICE_NAME = ORCL)(FAILOVER_MODE =(TYPE =SELECT )(METHOD = BASIC)(RETRIES = 3)(DELAY = 5))))
HOST、PORT、SERVICE_NAME就不多解释了。
LOAD_BALANCE 表示负载均衡，合法值yes/no；
FAILOVER 表示故障转移，合法值on/off，默认是on；详见：http://www.cnblogs.com/einyboy/archive/2012/11/19/2777855.html
METHOD = BASIC表示初始连接就连接一个接点，他还有个选项是preconnect，表示初始连接所有的接点。RETRIES:重试次数。DELAY:重试的延迟(以秒为单位)。 在上述链接中有详细描述。