oracle关闭异常，报错：ORA-24324: service handle not initialized

oracle数据库关闭异常，报错如下：

oracle@ app]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Thu Aug 23 07:25:03 2018

Copyright (c) 1982, 2009, Oracle. All rights reserved.

Connected.
SQL> startup
ORA-01012: not logged on
SQL> shutdown
ORA-24324: service handle not initialized
ORA-24323: value not allowed
ORA-01090: shutdown in progress - connection is not permitted

解决办法：

1.使用exit退出sqlplus。

2.使用sqlplus / as sysdba登录sqlplus，具体操作如下：

SQL> exit
Disconnected
[oracle@ app]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Thu Aug 23 07:29:55 2018

Copyright (c) 1982, 2009, Oracle. All rights reserved.

Connected.
SQL> shutdown abort
ORACLE instance shut down.
SQL> startup
ORA-00119: invalid specification for system parameter LOCAL_LISTENER
ORA-00130: invalid listener address '(ADDRESS=(PROTOCOL=TCP)(HOST=.)(PORT=1521))'

以上报错是另一个原因，是/etc/hosts文件中未映射具体的主机名所致，具体可参考我的另一篇博文：

https://www.cnblogs.com/hubery881116/articles/9527117.html