今天重新启动服务器后，tomcat启动异常，测试oracle后报错，提示ora-12541:tns:无监听程序

关掉监听服务

打开目录：D:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN

修改前配置文件：

# listener.ora Network Configuration File: D:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.SID_LIST_LISTENER =(SID_LIST =(SID_DESC =(SID_NAME = CLRExtProc)(ORACLE_HOME = D:\app\Administrator\product\11.2.0\dbhome_1)(PROGRAM = extproc)(ENVS = "EXTPROC_DLLS=ONLY:D:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll")))LISTENER =(DESCRIPTION_LIST =(DESCRIPTION =(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521)))(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))))ADR_BASE_LISTENER = D:\app\Administrator

修改HOST = localhost为HOST = ecs-dbcc(计算机名)

修改后配置文件：

# listener.ora Network Configuration File: D:\app\Administrator\product\11.2.0\dbhome_1\network\admin\listener.ora
# Generated by Oracle configuration tools.SID_LIST_LISTENER =(SID_LIST =(SID_DESC =(SID_NAME = CLRExtProc)(ORACLE_HOME = D:\app\Administrator\product\11.2.0\dbhome_1)(PROGRAM = extproc)(ENVS = "EXTPROC_DLLS=ONLY:D:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll")))LISTENER =(DESCRIPTION_LIST =(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = ecs-dbcc)(PORT = 1521))))ADR_BASE_LISTENER = D:\app\Administrator

启动监听服务器，测试连接，显示：ORA-12514:TNS: 监听程序当前无法识别连接描述符中请求的服务

使用Net Manager再测试：连接测试成功。