ORA-12505, TNS:listener does not currently know of SID given in connect descriptor

使用jdbc连接数据库,出现:
ava.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:ora10

解决方法:
1.到相应的oracle安装目录下,找到listener.ora 和 tnsnames.ora看看里面的端口配置是否是默认的1521,在程序中应该使用在listener.ora中配置的端口号
D:\oracle\product\10.2.0\db_1\NETWORK\ADMIN\listener.ora
2.以下出自:http://joanzq.**.com/blog/264593
oracle10G 的ORA-12505问题解决方法

连接 jdbc Oracle10g 错误 ，JDBC代码无问题，服务也启动，连接字符串也是对的，但是在eclipse 下报错，错误信息如下：

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:orcl



at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:124)

at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:279)

at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:318)

at oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:343)

at oracle.jdbc.driver.T4CConnection.(T4CConnection.java:147)

at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:31)

at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:545)

at java.sql.DriverManager.getConnection(Unknown Source)

at java.sql.DriverManager.getConnection(Unknown Source)

at cn.com.db.DBAccess.getConnection(DBAccess.java:33)

at cn.com.db.DBAccess.main(DBAccess.java:95)

Null

在CMD下snrctl status ，tnsping orcl 显示都正常。

在pl/SQL下用

select open_mode from v$database；

show parameter instance；

select INSTANCE_NAME from v$instance；

sqlplus sys/oracle@orcl

查询都显示正常，就是用pl/sql 登录时 填“数据库名” orcl 就无法登陆，报ora -12514

l最后有效的解决方法：

修改listener.ora文件

原listener.ora文件：

# listener.ora Network Configuration File: D:\oracle\product\10.1.0\Db_4\network\admin\listener.ora

# Generated by Oracle configuration tools.



SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME = D:\oracle\product\10.1.0\Db_4)

(PROGRAM = extproc)

)

)



LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))

)

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))

)

)

)





修改后的文件：

---------------------------------------------------------------------------------------

# listener.ora Network Configuration File: D:\oracle\product\10.1.0\Db_4\network\admin\listener.ora

# Generated by Oracle configuration tools.



SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME = D:\oracle\product\10.1.0\Db_4)

(PROGRAM = extproc)



)



(SID_DESC =

(GLOBAL_DBNAME = orcl)

(ORACLE_HOME = D:\oracle\product\10.1.0\Db_4)

(SID_NAME = orcl)

)

)



LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))

)

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))

)

)

)