hibernate Connections could not be acquired from the underlying database!

今天Hibernate鏈接oracle出現了錯誤 

java.sql.SQLException: Connections could not be acquired from the underlying database!

 

由於數據庫在本機個人url是這樣寫的：

jdbc:oracle:thin:@127.0.0.1:1521:XE

後來我查看了

XE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = debian-server)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XE)
    )
  )

我把鏈接數據庫的url改成了：jdbc:oracle:thin:@debian-server:1521:XE，這樣問題解決了。