Oracle出现 The Network Adapter could not establish the connection
错误截图如下
排障
首先确保你的Oracle实例和监听服务是开启的,如下
然后,产生问题的原因就是你的主机名写错了
解决
打开listener.ora文件
D:\SoftwareDevelopment\Oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora (具体看你的实际路径)
文件内容大致如下
# listener.ora Network Configuration File: D:\SoftwareDevelopment\Oracle\product\11.2.0\dbhome_1\network\admin\listener.ora
# Generated by Oracle configuration tools.SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = orcl.168.6.168)
(ORACLE_HOME = D:\SoftwareDevelopment\Oracle\product\11.2.0\dbhome_1)
(SID_NAME = ORCL)
)(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = D:\SoftwareDevelopment\Oracle\product\11.2.0\dbhome_1)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:D:\SoftwareDevelopment\Oracle\product\11.2.0\dbhome_1\bin\oraclr11.dll")
)
)LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.6.168)(PORT = 1521))
)
)ADR_BASE_LISTENER = D:\SoftwareDevelopment\Oracle
上面红色部分,host就是你的主机名,port就是端口,你可以自己配,但是登陆时一定要用这个文件中配置的HOST的实际值,也可以用电脑的计算机全名
如下图所示
使用配置文件中的指定值-OK
使用计算机全名-也OK