连接oracle时localhost可以ip地址不可以
在本机安装了oracle，使用sqlplus和plsqldev连接的时候，tnsname.ora中host写的是localhost，此时连接oracle都没有任何问题，但是外机连接本机，和tnsname.ora中host写成ip地址（192.168.1.110）是，报错ora-12547，没有监听等
解决问题，oracle自带管理工具，程序-》oracle-oracle...-》配置和移植工具-》Net Manager中找到本地，LISTENER，添加一个监听服务地址，然后重启oracle监听服务，然后就可以使用localhost和ip地址对oracle进行访问了
LISTENER.ORA文件
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.110)(PORT = 1521))
)
）
TNSNAME.ORA文件
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
ORCLIP =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.110)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
