生產環境中使用腳本實現tomcat start|status|stop|restart

本文轉載自查看原文 2017-04-14 18:56 2385 Steward_Xu的Linux成長之路

一、在實際生產環境中tomcat啟動是在bin目錄下采用自帶腳本startup.sh啟動；使用shutdown.sh關閉。如下圖：

　　再如果對於新手來講在不知道路徑情況下重啟是一件頭痛的事情（注意沒有reload，所以重啟只能shutdown.sh在startup.sh）；而且這里還有一個坑等着：

什么坑呢？如圖：

　　tomcat服務是啟動成功了的。那么我想停止服務用shutdown.sh，會出現什么呢？

　　進程還在而且成為了僵屍進程，萬惡啊？居然關不了，終極方法kill -9 進程號。試試？

　　終於干掉了。

　　再次啟動：

　　OK已經成功；還有一個坑在？請看，服務已經啟動，如果我再次執行startup.sh會出現什么呢？

　　請看紅色，啟動命令能正常執行，而且還能啟動一個服務意思是有雙服務雙進程。萬惡啊……

　　好問題來了我們如何簡單命令的啟動tomcat服務呢？如何讓服務啟動了再次執行啟動就不會執行了呢？ok。shell腳本實現：

二、腳本實現

  1 #!/bin/bash
  2 #############################################
  3 # this script is created by xuxuedong.                                           #
  4 # e_mail:365686746@qq.com                                                      #
  5 # qqinfo:365686746                                                                    #
  6 # This is server start to chkconfig.                                                #
  7 # version:1.1                                                                              #
  8 #############################################
  9 # chkconfig: 2345 92 92
 10 #         description: Saves and restores system entropy pool for \
 11 #         higher quality random number generatio
 12 
 13 . /etc/init.d/functions
 14 #set env
 15 export PATH=$PATH:/bin:/sbin:/usr/sbin
 16 export LANG="zh_CN.GB18030"
 17 
 18 # Require root to run this script.
 19 if [[ "$(whoami)" != "root" ]]; then
 20      echo "Please run this script as root." >&2
 21      exit 1
 22 fi
 23 
 24 # Source function library.
 25 #. /etc/init.d/functions
 26 if [ ! -f /opt/software/apache-tomcat-7.0.72/bin/startup.sh ]
 27        then
 28             echo "tomcat is not exit.please install."
 29             exit 1
 30 fi
 31 #This is a function for start tomcat
 32 function start(){
 33         if [ `ps -ef |grep java|grep -v grep|grep -v sh|wc -l` -eq 0 ]
 34               then
 35                     /bin/sh /opt/software/apache-tomcat-7.0.72/bin/startup.sh >/dev/null 2>&1
 36                     [ $? -eq 0 ]&&\
 37                     sleep 1
 38                     action "tmocat start." /bin/true
 39               else
 40                     action "tomcat had been startted." /bin/true
 41                     exit 3
 42         fi
 43 }
 44 #This is a function for stop tomcat
 45 function stop(){
 46         if [ `ps -ef |grep java|grep -v grep|grep -v sh|wc -l` -gt 0  ]
 47                 then
 48                         PID=`ps -ef |grep java|grep -v grep|awk '{print $2}'`
 49                         kill -9 $PID
 50                         [ $? -eq 0 ]&&\
 51                         echo "tomcat is stopping..."
 52                         sleep 1
 53                         action "tomcat  been stoped." /bin/true
 54                  else
 55                         action "tomcat had been stoped." /bin/true
 56                         exit 4
 57         fi
 58 }
 59 #This is a function for restart tomcat
 60 function restart(){
 61         if [ `ps -ef |grep java |grep -v grep|grep -v sh|wc -l` -gt 0  ]
 62                then
 63                  PID1=`ps -ef |grep java|grep -v grep|awk '{print $2}'`
 64                         kill -9 $PID1
 65                         [ $? -eq 0 ]&&/bin/sh /opt/software/apache-tomcat-7.0.72/bin/startup.sh >/dev/null 2>&1
 66 
 67                         [ $? -eq 0 ]&&echo "tomcat is restarting..."
 68                         sleep 1
 69                         action "tomcat is restartted ." /bin/true
 70                 else
 71                         action "tomcat is not running,please start." /bin/true
 72                         exit 5
 73         fi
 74 }
 75 #This is a function for status tomcat
 76 function status(){
 77         if [ `ps -ef |grep java |grep -v grep|wc -l` -gt 0  ]
 78                 then
 79                      action "tomcat is running."  /bin/true
 80                 else
 81                       action "tomcat is stopped." /bin/false
 82                       exit 5
 83         fi
 84 }
 85 case $1 in
 86         start)
 87         start
 88 ;;
 89         stop)
 90         stop
 91 ;;
 92         restart)
 93         restart
 94 ;;
 95         status)
 96         status
 97 ;;
 98 
 99         *)
100         echo "USAG:start|stop|restart|status"
101 esa