weblogic 配置 数据源的方法 ，RAC 环境

jdbc:oracle:thin:@ 
(DESCRIPTION= 
    (ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=10.151.50.65)(PORT=1521)) 
                  (ADDRESS=(PROTOCOL=TCP)(HOST=10.151.50.66)(PORT=1521)) 
     ) 
   (FAILOVER=yes) 
   (LOAD_BALANCE=yes) 
    ( 
        CONNECT_DATA= 
       (SERVER=DEDICATED) 
       (SERVICE_NAME=ypdb) 
       (instance_name=ypdb1)      --实例名1
       (instance_name=ypdb2)      --实例名2
    ) 
)