分析 Tomcat catalina.bat 脚本

2008-04-16 09:47:45　来源:中国自学编程网　作者:佚名点击:

Catalina.bat是tomcat所有脚本中最重要的脚本，完成几乎所有的tomcat操作。如启动，关闭等等,都是由catalina.bat脚本来完成的。接下来，我将对Tomcat catalina.bat脚本进行分析。

　　:noJuli

set JAVA_OPTS=%JAVA_OPTS% -Xms128m -Xmx512m -Dfile.encoding=UTF8 -Duser.timezone=GMT -Djava.security.auth.login.config=%CATALINA_HOME%/conf/jaas.config  设定JAVA_OPTS变量

echo Using CATALINA_BASE:   %CATALINA_BASE%     输出CATALINA_BASE变量值
echo Using CATALINA_HOME:   %CATALINA_HOME%     输出CATALINA_HOME变量值
echo Using CATALINA_TMPDIR: %CATALINA_TMPDIR% 输出CATALINA_TMPDIR变量值
if ""%1"" == ""debug"" goto use_jdk        如果变量%1里存在debug ，转到use_jdk位置
echo Using JRE_HOME:        %JRE_HOME%     输出JRE_HOME变量值
goto java_dir_displayed      转到java_dir_displayed
:use_jdk
echo Using JAVA_HOME:       %JAVA_HOME%    输出JAVA_HOME变量值
:java_dir_displayed
                        下面几行设定相应变量
set _EXECJAVA=%_RUNJAVA%
set MAINCLASS=org.apache.catalina.startup.Bootstrap
set ACTION=start
set SECURITY_POLICY_FILE=
set DEBUG_OPTS=
set JPDA=

if not ""%1"" == ""jpda"" goto noJpda
set JPDA=jpda
if not "%JPDA_TRANSPORT%" == "" goto gotJpdaTransport
set JPDA_TRANSPORT=dt_shmem
:gotJpdaTransport
if not "%JPDA_ADDRESS%" == "" goto gotJpdaAddress
set JPDA_ADDRESS=jdbconn
:gotJpdaAddress
if not "%JPDA_SUSPEND%" == "" goto gotJpdaSuspend
set JPDA_SUSPEND=n
:gotJpdaSuspend
if not "%JPDA_OPTS%" == "" goto gotJpdaOpts
set JPDA_OPTS=-Xdebug -Xrunjdwp:transport=%JPDA_TRANSPORT%,address=%JPDA_ADDRESS%,server=y,suspend=%JPDA_SUSPEND%
:gotJpdaOpts
shift
:noJpda

if ""%1"" == ""debug"" goto doDebug    如果%1为debug，转到doDebug，运行debug模式
if ""%1"" == ""run"" goto doRun        如果%1为run，转到doRun，运行正常模式
if ""%1"" == ""start"" goto doStart    如果%1为start，转到doStart，启动tomcat
if ""%1"" == ""stop"" goto doStop      如果%1为stop，转到doStop，关闭tocmat
if ""%1"" == ""version"" goto doVersion 如果%1为version，转到doVersion，显示tomcat的版本号

echo Usage:  catalina ( commands ... ) 如果%1没有上述内容，输出下面几行，并结束
echo commands:
echo   debug             Start Catalina in a debugger
echo   debug -security   Debug Catalina with a security manager
echo   jpda start        Start Catalina under JPDA debugger
echo   run               Start Catalina in the current window