Method of Connecting Cluster Database with JDBC

The url address connected to the database is a little different

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= Service name )))
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