讨厌的批处理文件的编写

做这个项目真是郁闷呀.遇到好多东西以前没用过的,简直不知道他们表示什么意思.

@echo off
REM Verify if JORAM_HOME is well defined
if not exist "%JORAM_HOME%\samples\bin\admin.bat" goto nokHome
REM Verify if JAVA_HOME is well defined
if not exist "%JAVA_HOME%\bin\java.exe" goto nokJava

set CONFIG_DIR=%JORAM_HOME%\samples\config
set JORAM_LIBS=%JORAM_HOME%\ship\lib
set RUN_DIR=%JORAM_HOME%\samples\run
set SEND_CLASS=%JORAM_HOME%\samples\class

REM  Building the Classpath
set CLASSPATH=%JORAM_LIBS%\joram-mom.jar
set CLASSPATH=%CLASSPATH%;%JORAM_LIBS%\joram-shared.jar
set CLASSPATH=%CLASSPATH%;%JORAM_LIBS%\JCup.jar
set CLASSPATH=%CLASSPATH%;%JORAM_LIBS%\jakarta-regexp-1.2.jar
set CLASSPATH=%CLASSPATH%;%JORAM_LIBS%\ow_monolog.jar
set CLASSPATH=%CLASSPATH%;%JORAM_LIBS%\jmxri.jar
set CLASSPATH=%CLASSPATH%;%JORAM_LIBS%\jms.jar
set CLASSPATH=%CLASSPATH%;%JORAM_LIBS%\joram-client.jar
set CLASSPATH=%CLASSPATH%;%RUN_DIR%
set CLASSPATH=%CLASSPATH%;%SEND_CLASS%

copy %CONFIG_DIR%\a3config.dtd %RUN_DIR%\a3config.dtd
copy %CONFIG_DIR%\a3debug.cfg %RUN_DIR%\a3debug.cfg
copy %CONFIG_DIR%\centralized_a3servers.xml %RUN_DIR%\a3servers.xml
copy %CONFIG_DIR%\jndi.properties %RUN_DIR%\jndi.properties

echo == Creat Queue and Topic ! ==
start /D %RUN_DIR% /B %JAVA_HOME%\bin\java -classpath %CLASSPATH% ClassicAdmin
goto end
:nokHome
echo The JORAM_HOME environment variable is not defined correctly
echo This environment variable is needed to run this program
goto end
:nokJava
echo The JAVA_HOME environment variable is not defined correctly
echo This environment variable is needed to run this program
goto end

:end