linux下tomcat的80端口被占用的解决办法

分析:netstat -an查看到大量的80端口进程僵死,重启tomcat.tomcat启动失败,网页依然无法打开.

停止tomcat进程shutdown.sh，停止tomcat后telnet 127.0.0.1 80,发现80端口依然可用。netstat -an|grep 80 查看发现有许多80端口进程在里面，使用kill pid命令终止进程，无用。使用lsof -i :80|grep -v "PID"|awk '{print "kill -9",$2}'命令后所有80端口进程删除。重新启动tomcat，系统正常运行。不过为什么tomcat在关闭时却不能将80端口的进程一并关闭的原因需要分析一下。

[root@gzcourt bin]# netstat -an |grep 80
tcp        0      0 ::ffff:127.0.0.1:8005       :::*                        LIST
EN
tcp        0      0 :::8009                     :::*                        LIST
EN
tcp        0      0 :::80                       :::*                        LIST
EN
tcp        0      0 :::8080                     :::*                        LIST
EN
tcp        0      0 ::ffff:172.16.1.153:80      ::ffff:202.160.179.12:36057 TIME
_WAIT
tcp        0      0 ::ffff:172.16.1.153:80      ::ffff:202.160.178.15:39176 TIME
_WAIT
tcp        0      0 ::ffff:172.16.1.153:80      ::ffff:218.20.57.173:55001  ESTA
BLISHED
tcp        0      0 ::ffff:172.16.1.153:80      ::ffff:218.20.57.173:3516   ESTA
BLISHED
tcp        0      0 ::ffff:172.16.1.153:80      ::ffff:218.20.57.173:55037  ESTA
BLISHED
tcp        0      0 ::ffff:172.16.1.153:80      ::ffff:218.20.57.173:3518   ESTA
BLISHED
tcp        0      0 ::ffff:172.16.1.153:80      ::ffff:61.135.162.208:57893 TIME
_WAIT
tcp        0      0 ::ffff:172.16.1.153:80      ::ffff:210.72.4.122:39196   ESTA
BLISHED
tcp        0      0 ::ffff:172.16.1.153:80      ::ffff:59.32.124.136:22529  ESTA
BLISHED
tcp        0      0 ::ffff:172.16.1.153:80      ::ffff:218.20.57.173:55222  ESTA
BLISHED
tcp        0      0 ::ffff:172.16.1.153:80      ::ffff:218.20.57.173:3510   ESTA
BLISHED
tcp        0      0 ::ffff:172.16.1.153:80      ::ffff:59.32.124.136:22530  ESTA
BLISHED
tcp        0      0 ::ffff:172.16.1.153:80      ::ffff:210.72.4.122:39198   ESTA
BLISHED
unix  3      [ ]         STREAM     CONNECTED     6880   /tmp/.X11-unix/X0
# lsof -i :80|grep -v "PID"|awk '{print "kill -9",$2}'|sh
以上脚本可以清除80端口的进程