orcle数据库启动listens后提示“the listener supports no service”,监听无服务的解决办法

Q:linux系统下安装oracle数据库后，用命令启动监听，执行完成后有如下显示

 

提示“the listener supports no service”,监听无服务。

发生此种情况的原因是因为监听没有注册成功，可手动在监听配置文件中添加如下命令（监听配置文件位置：在oracle安装目录下/oracle/product/11.2.0/db_1/network/admin/下的listener.ora(见图中Listener Parameter File所在目录)）：

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )
  

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (GLOBAL_DBNAME = orcl)
      (SID_NAME = orcl)
      (ORACLE_HOME = /home/oracle/app/oracle/product/11.2.0/dbhome_1)