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上网尝试了很多方法,网上列举的以下常见方法对于我来说无效,且均正常。
1、先检查网络是否能ping通,下图网络状态是正确的。
2、查看服务器监听服务是否启动
3、cmd -》 tnsping ip地址(或者是服务器的实例名SID)如果报“TNS-12535:操作超时”,可能是服务器端防火墙 没有关闭
4、cmd -》 netstat -na 查看1521端口是否关闭,或者将1521端口设为例外
5、cmd-》 lsnrctl status 查看监听的状态
图中出现监听不支持服务等,基本可以确定D:\oracle\product\10.2.0\db_1\network\admin\listener.ora文件或者tnsnames.ora文件中出现问题
listener.ora文件存在如下代码:
这段代码中HOST是否是你的主机名或者IP,如果不是请修改到对应的主机名和IP 或者localhost
# listener.ora Network Configuration File: D:\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 = D:\oracle\product\10.2.0\db_1) (PROGRAM = extproc) ) ) LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1)) (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521)) ) )
tnsnames.ora文件
这段代码中HOST是否是你的主机名或者IP,如果不是请修改到对应的主机名和IP 或者localhost
# tnsnames.ora Network Configuration File: D:\oracle\product\10.2.0\db_1\network\admin\tnsnames.ora # Generated by Oracle configuration tools. LISTENER_ORCL = (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521)) ORCL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST =localhost)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl) ) ) EXTPROC_CONNECTION_DATA = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1)) ) (CONNECT_DATA = (SID = PLSExtProc) (PRESENTATION = RO) ) )
6、我自己解决的
重启如下图所示的两个服务 问题解决