oracle xe连接报错
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java.sql.SQLException: Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
The Connection descriptor used by the client was:
localhost:1521:XE

con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:XE", "ty", "ty");

大伙帮帮忙 我用的事oracle xe
[解决办法]
cmd里面sqlplus能连上么