Question

我一直在使用oracle数据库编写Java应用程序。最初，我的连接网址是

jdbc:oracle:thin:@localhost:1521:XE

它一直运行良好。我想更改自己的URL，以便可以从任何便携式计算机连接到数据库。我将连接网址更改为

jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS = (PROTOCOL = TCP)(HOST = LAPTOP-3ME2EPSM)(PORT = 1521))(CONNECT_DATA = (SERVER = DEDICATED)(SERVICE_NAME = XE)))

这是我在Internet上找到的格式。更改连接URL后，我无法再连接到数据库。没有错误。该程序将永远保持运行状态，并且连接永远不会结束。

下面是我的listener.ora：

DEFAULT_SERVICE_LISTENER = XE

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = some local address)
      (PROGRAM = extproc)
      (ENVS = "EXTPROC_DLLS=ONLY:some local address")
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = LAPTOP-3ME2EPSM)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )

这是我的tnsnames.ora：

XE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = LAPTOP-3ME2EPSM)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XE)
    )
  )

LISTENER_XE =
  (ADDRESS = (PROTOCOL = TCP)(HOST = LAPTOP-3ME2EPSM)(PORT = 1521))


ORACLR_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
    (CONNECT_DATA =
      (SID = CLRExtProc)
      (PRESENTATION = RO)
    )
  )

XEPDB1 =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = LAPTOP-3ME2EPSM)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XEPDB1)
    )
  )

Answer 1

检查是否可以使用SQL Plus使用URL进行连接？您的数据库可能是本地数据库。

与Oracle数据库的Java连接永远需要

1 个答案: