批处理写入windows环境变量

::JAVA_HOME=C:\Program Files\Java\jdk1.6.0_20
::JRE_HOME=%JAVA_HOME%\jre
::CATALINA_HOME=C:\Projects-Solix\Softwares\Apache\tomcat-6
::PATH=%JAVA_HOME%\bin
::JAVA_OPTS="-server -Xms256m -Xmx512m"
::CATALINA_OPTS="-verbose:gc -XX:+AggressiveOpts -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC"
::CLASSPATH=.;%JAVA_HOME%\lib;%JAVA_HOME%\lib\tools.jar;%JAVA_HOME%\jre\lib\rt.jar;%CATALINA_HOME%\lib;%CATALINA_HOME%\lib\ojdbc5.jar;%CATALINA_HOME%\lib\Edms.jar

set java=C:\Java\jdk1.6.0_27
set web=C:\edms

::变量用类似%%Java_Home%%来表示
@reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v JAVA_HOME /t reg_sz /d "%java%" /f
@reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v JRE_HOME /t reg_sz /d "%%Java_Home%%\jre" /f
@reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v CATALINA_HOME /t reg_sz /d "%web%" /f
@reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v PATH /t reg_expand_sz /d ".;%path%;%%Java_Home%%\bin" /f
@reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v JAVA_OPTS /t reg_expand_sz /d "-server -Xms256m -Xmx512m" /f
@reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v CATALINA_OPTS /t reg_expand_sz /d "-verbose:gc -XX:+AggressiveOpts -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC" /f
@reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v CLASSPATH /t reg_expand_sz /d ".;%CLASSPATH%;%%Java_Home%%\lib;%%Java_Home%%\lib\tools.jar;%%Java_Home%%\jre\lib\rt.jar;%%CATALINA_HOME%%\lib;%%CATALINA_HOME%%\lib\ojdbc5.jar;%%CATALINA_HOME%%\lib\Edms.jar" /f

::重启explorer.exe，使环境变量立即生效
taskkill /im explorer.exe /f >nul 2>nul&&start explorer