在启动tomcat的时候提示8080端口被占用，后来经过查找发现如下结论：

将oracle与tomcat、jboss等其它占用8080端口的服务器安装在一台机器上，会出现8080端口被占用的错误。

一、首先检查8080端口的使用情况

[root@olivenan root]# lsof -i :8080 -n

COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME

tnslsnr 1031 oracle 12u IPv4 2013 TCP *:webcache (LISTEN)

[root@olivenan root]# lsof -i tcp:8080 -n

COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME

tnslsnr 1031 oracle 12u IPv4 2013 TCP *:webcache (LISTEN)

发现8080端口被oracle使用，注意lsof命令参数的使用。

[root@olivenan root]# lsof -i udp:8080 -n

[root@olivenan root]# lsof -i|grep 8080

[root@olivenan root]# netstat -tln|grep 8080

tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN

[root@olivenan root]#

二、解决方法一

查找解决方法

将*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)'

修改为#*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)'

[oracle@olivenan dbs]$ sqlplus "/as sysdba"

SQL*Plus: Release 9.2.0.4.0 - Production on Fri Jul 6 10:37:32 2007

Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

Connected to:

Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production

With the Partitioning, OLAP and Oracle Data Mining options

JServer Release 9.2.0.4.0 - Production

SQL> shutdown immediate

Database closed.

Database dismounted.

ORACLE instance shut down.

SQL> create spfile from pfile;

File created.

SQL> startup

ORACLE instance started.

Total System Global Area 236000356 bytes

Fixed Size 451684 bytes

Variable Size 201326592 bytes

Database Buffers 33554432 bytes

Redo Buffers 667648 bytes

Database mounted.

Database opened.

SQL> exit

[root@olivenan root]# lsof -i :8080 -n

[root@olivenan root]

结果端口8080停止被占用