JDBC連接字符串可以指定多個數據庫嗎？

Question

這裏是我當前的連接字符串：

jdbc:amazon;moduleName=Foobar:oracle:thin:@ab1na-orasvr.db.foobar.com:42111:ab1na 

但我需要JDBC訪問多個數據庫。我可以簡單地附加第二個模塊名稱，用分號分隔嗎？

Answer 1

不，我不認爲你可以這樣做。你可以使用Hibernate來完成這個任務，不過通過創建多個持久化單元並根據你給每個單元的名字創建實體管理器。

http://schuchert.wikispaces.com/JPA+Tutorial+1+-+Persistence+Unit

Answer 2

jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST = (ADDRESS =(PROTOCOL=TCP) 
(HOST=1)(PORT=1521))(ADDRESS=(PROTOCOL=TCP) 
(HOST=2)(PORT=1521))(ADDRESS =(PROTOCOL=TCP) 
(HOST=3)(PORT=1521))(ADDRESS =(PROTOCOL=TCP) 
(HOST=4)(PORT=1521))(ADDRESS =(PROTOCOL=TCP) 
(HOST=5)(PORT=1521))(ADDRESS =(PROTOCOL=TCP) 
(HOST=6)(PORT=1521))(ADDRESS =(PROTOCOL=TCP) 
(HOST=7)(PORT=1521))(ADDRESS =(PROTOCOL=TCP) 
(HOST=8)(PORT=1521))(FAILOVER=on) (LOAD_BALANCE=ON)) 
(CONNECT_DATA = (SERVER=DEDICATED) 
(SERVICE_NAME =ccbfsinterface.comp.pge.com)))