Tomcat启动脚本catalina.sh
Tomcat启动脚本catalina.sh来源: ChinaUnix博客 日期： 2007.08.21 11:04 (共有0条评论) 我要评论
1 - 概述
脚本catalina.sh用于启动和关闭tomcat服务器，是最关键的脚本
另外的脚本startup.sh和shutdown.sh都是使用不同的参数调用了该脚本
该脚本的使用方法如下（引自该脚本本身）：
echo "Usage: catalina.sh ( commands ... )"
echo "commands:"
echo "debug Start Catalina in a debugger"
echo "debug -security Debug Catalina with a security manager"
echo "embedded Start Catalina in embedded mode"
echo "jpda start Start Catalina under JPDA debugger"
echo "run Start Catalina in the current window"
echo "run -security Start in the current window with security manager"
echo "start Start Catalina in a separate window"
echo "start -security Start in a separate window with security manager"
echo "stop Stop Catalina"
2 - 脚本分析
#!/bin/sh# =============================================================# 该脚本设置正确的环境变量和系统信息，然后启动或者停止tomcat server# 具体的操作是：# 使用命令行参数作为args的实参，调用org.apache.catalina.startup.Bootstrap.main(String[])# ==============================================================# -----------------------------------------------------------------------------# Start/Stop Script for the CATALINA Server## Environment Variable Prequisites## CATALINA_HOME May point at your Catalina "build" directory.## CATALINA_BASE (Optional) Base directory for resolving dynamic portions# of a Catalina installation.If not present, resolves to# the same directory that CATALINA_HOME points to.## CATALINA_OPTS (Optional) Java runtime options used when the "start",# "stop", or "run" command is executed.## CATALINA_TMPDIR (Optional) Directory path location of temporary directory# the JVM should use (java.io.tmpdir).Defaults to# $CATALINA_BASE/temp.## JAVA_HOME Must point at your Java Development Kit installation.## JAVA_OPTS (Optional) Java runtime options used when the "start",# "stop", or "run" command is executed.## JPDA_TRANSPORT(Optional) JPDA transport used when the "jpda start"# command is executed. The default is "dt_socket".## JPDA_ADDRESS (Optional) Java runtime options used when the "jpda start"# command is executed. The default is 8000.## JSSE_HOME (Optional) May point at your Java Secure Sockets Extension# (JSSE) installation, whose JAR files will be added to the# system class path used to start Tomcat.## CATALINA_PID (Optional) Path of the file which should contains the pid# of catalina startup java process, when start (fork) is used# -----------------------------------------------------------------------------# OS specific support.$var _must_ be set to either true or false.cygwin=falsecase "`uname`" inCYGWIN*) cygwin=true;;esac# PRG是被执行的脚本的名称，可以认为PRG=="catalina.sh"，也可能是某个符号链，指向该脚本。PRG="$0"# 处理了一下PRG，等循环跳出之后PRG成为 ????while [ -h "$PRG" ]; dols=`ls -ld "$PRG"`link=`expr "$ls" : '.*-> \(.*\)$'`if expr "$link" : '.*/.*' > /dev/null; then PRG="$link"else PRG=`dirname "$PRG"`/"$link"fidone# PRGDIR是PRG的目录路径名称PRGDIR=`dirname "$PRG"`# 执行$CATALINA_HOME/BIN/setenv.sh来设置环境变量# [ -r filename ] 是判断是否文件存在且可读CATALINA_HOME=`cd "$PRGDIR/.." ; pwd`if [ -r "$CATALINA_HOME"/bin/setenv.sh ]; then. "$CATALINA_HOME"/bin/setenv.shfi# For Cygwin, 确保所有的路径名都符合UNIX格式if $cygwin; then[ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`[ -n "$CATALINA_HOME" ] && CATALINA_HOME=`cygpath --unix "$CATALINA_HOME"`[ -n "$CATALINA_BASE" ] && CATALINA_BASE=`cygpath --unix "$CATALINA_BASE"`[ -n "$CLASSPATH" ] && CLASSPATH=`cygpath --path --unix "$CLASSPATH"`[ -n "$JSSE_HOME" ] && JSSE_HOME=`cygpath --path --unix "$JSSE_HOME"`fi# 设置用来初始化SystemClassLoader的CLASSPATH变量：通过执行脚本setclasspath.sh完成# 注意：脚本setclasspath.sh改变了原来的$CLASSPATH变量，而把它设为：# CLASSPATH=$CATALINA_HOME/bin/bootstrap.jar:$JAVA_HOME/lib/tools.jar# 其中bootstrap.jar是package org.apache.catalina.startup的打包文件，# 含有启动方法org.apache.catalina.startup.Bootstrap.main(String[] args)# tools.jar含有javac编译器，用来把jsp文件编译成为servlet classif [ -r "$CATALINA_HOME"/bin/setclasspath.sh ]; thenBASEDIR="$CATALINA_HOME". "$CATALINA_HOME"/bin/setclasspath.shelseecho "Cannot find $CATALINA_HOME/bin/setclasspath.sh"echo "This file is needed to run this program"exit 1fi# 在CLASSPATH环境变量后面补上一些JAR文件# [ -n string ] 判断字符串是否长度非0；[ -z string ] 判断字符串是否长度为0# 它们可以用来判断是否某个环境变量已经被设置if [ -n "$JSSE_HOME" ]; thenCLASSPATH="$CLASSPATH":"$JSSE_HOME"/lib/jcert.jar:"$JSSE_HOME"/lib/jnet.jar:"$JSSE_HOME"/lib/jsse.jarfiCLASSPATH="$CLASSPATH":"$CATALINA_HOME"/bin/bootstrap.jar# 指定CATALINA_BASE变量# 如果CATALINA_BASE没有值，就让CATALINA_BASE=$CATALINA_HOMEif [ -z "$CATALINA_BASE" ] ; thenCATALINA_BASE="$CATALINA_HOME"fi# 指定CATALINA_TMPDIR变量# 如果CATALINA_TMPDIR没有值，就让CATALINA_TMPDIR=$CATALINA_BASE/tempif [ -z "$CATALINA_TMPDIR" ] ; then# Define the java.io.tmpdir to use for CatalinaCATALINA_TMPDIR="$CATALINA_BASE"/tempfi# For Cygwin, 在执行java程序前把路径名转换成WINDOWS格式if $cygwin; thenJAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`CATALINA_HOME=`cygpath --path --windows "$CATALINA_HOME"`CATALINA_BASE=`cygpath --path --windows "$CATALINA_BASE"`CATALINA_TMPDIR=`cygpath --path --windows "$CATALINA_TMPDIR"`CLASSPATH=`cygpath --path --windows "$CLASSPATH"`JSSE_HOME=`cygpath --path --windows "$JSSE_HOME"`fi# 显示信息，然后执行命令echo "Using CATALINA_BASE: $CATALINA_BASE"echo "Using CATALINA_HOME: $CATALINA_HOME"echo "Using CATALINA_TMPDIR: $CATALINA_TMPDIR"echo "Using JAVA_HOME: $JAVA_HOME"# ......当执行catalina.sh的参数是jpda的时候......if [ "$1" = "jpda" ] ; thenif [ -z "$JPDA_TRANSPORT" ]; then JPDA_TRANSPORT="dt_socket"fiif [ -z "$JPDA_ADDRESS" ]; then JPDA_ADDRESS="8000"fiif [ -z "$JPDA_OPTS" ]; then JPDA_OPTS="-Xdebug -Xrunjdwp:transport=$JPDA_TRANSPORT,address=$JPDA_ADDRESS,server=y,suspend=n"fiCATALINA_OPTS="$CATALINA_OPTS $JPDA_OPTS"shiftfi# ......当执行catalina.sh的参数是debug的时候......if [ "$1" = "debug" ] ; thenshiftif [ "$1" = "-security" ] ; then echo "Using Security Manager" shift exec "$_RUNJDB" $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \ -sourcepath "$CATALINA_HOME"/../../jakarta-tomcat-4.0/catalina/src/share \ -Djava.security.manager \ -Djava.security.policy=="$CATALINA_BASE"/conf/catalina.policy \ -Dcatalina.base="$CATALINA_BASE" \ -Dcatalina.home="$CATALINA_HOME" \ -Djava.io.tmpdir="$CATALINA_TMPDIR" \ org.apache.catalina.startup.Bootstrap "$@" startelse exec "$_RUNJDB" $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \ -sourcepath "$CATALINA_HOME"/../../jakarta-tomcat-4.0/catalina/src/share \ -Dcatalina.base="$CATALINA_BASE" \ -Dcatalina.home="$CATALINA_HOME" \ -Djava.io.tmpdir="$CATALINA_TMPDIR" \ org.apache.catalina.startup.Bootstrap "$@" startfi# ......当执行catalina.sh的参数是embedded的时候......elif [ "$1" = "embedded" ] ; thenshiftecho "Embedded Classpath: $CLASSPATH"exec "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \ -Dcatalina.base="$CATALINA_BASE" \ -Dcatalina.home="$CATALINA_HOME" \ -Djava.io.tmpdir="$CATALINA_TMPDIR" \ org.apache.catalina.startup.Embedded "$@"# +----------------------------------------------------+# |......当执行catalina.sh的参数是run的时候...... |# |在当前窗口中启动tomcat服务器！！！ |# +----------------------------------------------------+elif [ "$1" = "run" ]; then# 把参数run去掉shift # 如果参数是run -security，则启动Security Managerif [ "$1" = "-security" ] ; then echo "Using Security Manager" shift exec "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \ -Djava.security.manager \ -Djava.security.policy=="$CATALINA_BASE"/conf/catalina.policy \ -Dcatalina.base="$CATALINA_BASE" \ -Dcatalina.home="$CATALINA_HOME" \ -Djava.io.tmpdir="$CATALINA_TMPDIR" \ org.apache.catalina.startup.Bootstrap "$@" start # 如果参数是孤单的run，则在本窗口中启动tomcat服务器# 在本窗口中启动的方法是使用exec，让当前进程fork一个新进程来启动tomcat，当前进程是tomcat的父进程# 启动tomcat的类是org.apache.catalina.startup.Bootstrap.main("start");else exec "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \ -Dcatalina.base="$CATALINA_BASE" \ -Dcatalina.home="$CATALINA_HOME" \ -Djava.io.tmpdir="$CATALINA_TMPDIR" \ org.apache.catalina.startup.Bootstrap "$@" startfi# +----------------------------------------------------+# |......当执行catalina.sh的参数是start的时候......|# |在新窗口中启动tomcat服务器！！！ |# +----------------------------------------------------+elif [ "$1" = "start" ] ; then# 把参数start去掉shift # 创建一个文件（如果文件不存在的话）$CATALINA_BASE/logs/catalina.out touch "$CATALINA_BASE"/logs/catalina.out# 如果参数是start -security，则启动Security Managerif [ "$1" = "-security" ] ; then echo "Using Security Manager" shift "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \ -Djava.security.manager \ -Djava.security.policy=="$CATALINA_BASE"/conf/catalina.policy \ -Dcatalina.base="$CATALINA_BASE" \ -Dcatalina.home="$CATALINA_HOME" \ -Djava.io.tmpdir="$CATALINA_TMPDIR" \ org.apache.catalina.startup.Bootstrap "$@" start \ >> "$CATALINA_BASE"/logs/catalina.out 2>&1 & if [ ! -z "$CATALINA_PID" ]; then echo $! > $CATALINA_PID fi # 如果参数是孤单的start，那么在新窗口中启动tomcatelse "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \ -Dcatalina.base="$CATALINA_BASE" \ -Dcatalina.home="$CATALINA_HOME" \ -Djava.io.tmpdir="$CATALINA_TMPDIR" \ org.apache.catalina.startup.Bootstrap "$@" start \ >> "$CATALINA_BASE"/logs/catalina.out 2>&1 & if [ ! -z "$CATALINA_PID" ]; then echo $! > $CATALINA_PID fi fi# +----------------------------------------------------+# |......当执行catalina.sh的参数是stop的时候...... |# |关闭tomcat服务器！！！ |# +----------------------------------------------------+elif [ "$1" = "stop" ] ; then# 把参数stop去掉shift # 关闭tomcat服务器的类是org.apache.catalina.startup.Bootstrap->main("stop");# 注意：java -D 是设置系统属性 exec "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \ -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \ -Dcatalina.base="$CATALINA_BASE" \ -Dcatalina.home="$CATALINA_HOME" \ -Djava.io.tmpdir="$CATALINA_TMPDIR" \ org.apache.catalina.startup.Bootstrap "$@" stop# +----------------------------------------------------+# |......当执行catalina.sh的参数不可辨认的时候...... |# |打印帮助信息，由此查看各种参数代表的意义！！！ |# +----------------------------------------------------+elseecho "Usage: catalina.sh ( commands ... )"echo "commands:"echo "debug Start Catalina in a debugger"echo "debug -security Debug Catalina with a security manager"echo "embedded Start Catalina in embedded mode"echo "jpda start Start Catalina under JPDA debugger"echo "run Start Catalina in the current window"echo "run -security Start in the current window with security manager"echo "start Start Catalina in a separate window"echo "start -security Start in a separate window with security manager"echo "stop Stop Catalina"exit 1fi
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