http://anthon-lx.iteye.com/blog/811460

完整的错误信息如下：

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:
192.168.149.128:1521:orcl
 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:261)
 at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:387)
 at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:414)
 at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
 at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
 at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
 at oracle.eclipse.tools.database.connectivity.db.OracleJDBCConnection.createConn(OracleJDBCConnection.java:199)
 at oracle.eclipse.tools.database.connectivity.db.OracleJDBCConnection.createConnection(OracleJDBCConnection.java:149)
 at org.eclipse.datatools.connectivity.DriverConnectionBase.internalCreateConnection(DriverConnectionBase.java:104)
 at org.eclipse.datatools.connectivity.DriverConnectionBase.open(DriverConnectionBase.java:53)
 at org.eclipse.datatools.connectivity.drivers.jdbc.JDBCConnection.open(JDBCConnection.java:72)
 at oracle.eclipse.tools.database.connectivity.db.OracleJDBCConnectionFactory.createConnection(OracleJDBCConnectionFactory.java:42)
 at org.eclipse.datatools.connectivity.internal.ConnectionFactoryProvider.createConnection(ConnectionFactoryProvider.java:83)
 at org.eclipse.datatools.connectivity.internal.ConnectionProfile.createConnection(ConnectionProfile.java:355)
 at org.eclipse.datatools.connectivity.ui.PingJob.createTestConnection(PingJob.java:76)
 at org.eclipse.datatools.connectivity.ui.PingJob.run(PingJob.java:59)
 at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

解决方法：

打开Oracle的 listener.ora 文件：

（oracle/oracle/product/10.2.0/db_1/network/admin/listener.ora）

修改前：

# listener.ora Network Configuration File: /app/oracle/oracle/product/10.2.0/db_1/network/admin/listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = /app/oracle/oracle/product/10.2.0/db_1)
      (PROGRAM = extproc)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
      (ADDRESS = (PROTOCOL = TCP)(HOST = suse10.site)(PORT = 1521))
    )
  )

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

修改后：

# listener.ora Network Configuration File: /app/oracle/oracle/product/10.2.0/db_1/network/admin/listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = /app/oracle/oracle/product/10.2.0/db_1)
      (PROGRAM = extproc)
    )
    (SID_DESC =
      (GLOBAL_DBNAME = ORCL) 
      (ORACLE_HOME = /app/oracle/oracle/product/10.2.0/db_1)
      (SID_NAME = ORCL)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
      (ADDRESS = (PROTOCOL = TCP)(HOST = suse10.site)(PORT = 1521))
    )
  )

上面的红色文字是增加的内容。 (ORCL -- 是你的SID 数据库名)

重启Oracle的监听器。

问题解决。