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 descriptorThe 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.(PhysicalConnection.java:414) at oracle.jdbc.driver.T4CConnection. (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) ) )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。