这篇文章主要介绍了JDBC连接集群数据库的方法，有需要的朋友可以参考一下

在连接数据库的url地址有点不一样     代码如下: jdbc:oracle:thin:@(DESCRIPTION= (LOAD_BALANCE=on) (ADDRESS_LIST= (ADDRESS=(PROTOCOL=TCP)(HOST=IP1)(PORT=1521)) (ADDRESS=(PROTOCOL=TCP)(HOST=IP2)(PORT=1521)) ) (CONNECT_DATA=(SERVICE_NAME=服务名)))   url=jdbc:oracle:thin:@(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.77)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.91)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = hostIp3)(PORT = 1521)) ) (CONNECT_DATA =(SERVICE_NAME = APPDB))) username=imei_app password=imei_app