最近用oracle做项目，总隔三差五的没监听而过不久就好了，系统问题，然后懵逼了，浪费时间。
哎，装完系统plsql 还能用，过会又没监听，草，然后配置下 文件找了一些总结了一下
杂技这里找到你的文件 jlister.ora
修改
# listener.ora Network Configuration File: D:\app\zyb_pc\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.
LISTENER1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = zyb)(PORT = 1521))
)
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DANAME = ORCL)
(ORACLE_HOME = D:\Oracle\orcle\product\11.2.0\dbhome_1)
)
(SID_NAME = ORCL)
(SID_DESC=
(PROGRAM = extproc)
(SID_NAME=PLSExtProc)
(ORACLE_HOME = D:\Oracle\orcle\product\11.2.0\dbhome_1)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
)
ADR_BASE_LISTENER = D:\oracle
重启监听服务
就好了，因人而异