Java 환경을 설정할 때 경로 구분자를 semi-colon으로 쓰거나 혹은 colon으로 구분해서 써야 하는 이유

• 윈도우 환경 : 경로 ; 사용
• 유닉스 환경 : 경로 ; 사용

출처: http://aircook.tistory.com/entry/Java-classpath-옵션

 

테스트 프로그램을 구현하다가 웹이 아닌 그냥 자바 클래스를 실행해야 하는 경우가 생겼다.

그런데 -classpath옵션이 window랑 unix를 틀린것을 발견했다. 웹프로그래밍만 하다 보니 이제껏 이걸 모르고 있었다는게 한심하다.

다른점은 구분자(semi-colon과 그냥 colon)의 차이점이다.

예를 들면 다음과 같다.

window

java -cp .;..\lib\mail.jar;..\lib\activation.jar mail.MailSender

unix

java -cp .:../lib/mail.jar:../lib/activation.jar mail.MailSender

java의 help를 보니.. 다음과 같이 정확하게 구분자가 나와 있었다.

window

c:\>ver

Microsoft Windows XP [Version 5.1.2600]

c:\>java -h

Usage: java [-options] class [args...]

(to execute a class)

orjava [-options] -jar jarfile [args...]

(to execute a jar file)

where options include:

-clientto select the "client" VM

-serverto select the "server" VM

-hotspotis a synonym for the "client" VM[deprecated]

The default VM is client.

-cp <class search path of directories and zip/jar files>

-classpath <class search path of directories and zip/jar files>

A ; separated list of directories, JAR archives,

and ZIP archives to search for class files.

-D<name>=<value>

set a system property

-verbose[:class|gc|jni]

enable verbose output

-versionprint product version and exit

-version:<value>

require the specified version to run

-showversionprint product version and continue

-jre-restrict-search | -jre-no-restrict-search

include/exclude user private JREs in the version search

-? -helpprint this help message

-Xprint help on non-standard options

-ea[:<packagename>...|:<classname>]

-enableassertions[:<packagename>...|:<classname>]

enable assertions

-da[:<packagename>...|:<classname>]

-disableassertions[:<packagename>...|:<classname>]

disable assertions

-esa | -enablesystemassertions

enable system assertions

-dsa | -disablesystemassertions

disable system assertions

-agentlib:<libname>[=<options>]

load native agent library <libname>, e.g. -agentlib:hprof

see also, -agentlib:jdwp=help and -agentlib:hprof=help

-agentpath:<pathname>[=<options>]

load native agent library by full pathname

-javaagent:<jarpath>[=<options>]

load Java programming language agent, see java.lang.instrument

unix

test|server:/user/test> uname -a

HP-UX server B.11.23 U ia64 3407499753 무제한-사용자 라이선스

test|server:/user/test> java -h

Usage: java [-options] class [args...]

(to execute a class)

orjava [-options] -jar jarfile [args...]

(to execute a jar file)

where options include:

-d32use a 32-bit data model if available

-d64use a 64-bit data model if available

-serverrun the HotSpot VM, tuned for long-lived,

server applications (default)

-hotspotsynonymous to the -server option

-clientrun the HotSpot VM, tuned for short-lived,

GUI applications

If present, the option to select the VM must be first.

The default VM is -server.

-cp <class search path of directories and zip/jar files>

-classpath <class search path of directories and zip/jar files>

A : separated list of directories, JAR archives,

and ZIP archives to search for class files.

-D<name>=<value>

set a system property

-verbose[:class|gc|jni]

enable verbose output

-versionprint product version and exit

-version:<value>

require the specified version to run

-showversionprint product version and continue

-jre-restrict-search | -jre-no-restrict-search

include/exclude user private JREs in the version search

-? -helpprint this help message

-Xprint help on non-standard options

-ea[:<packagename>...|:<classname>]

-enableassertions[:<packagename>...|:<classname>]

enable assertions

-da[:<packagename>...|:<classname>]

-disableassertions[:<packagename>...|:<classname>]

disable assertions

-esa | -enablesystemassertions

enable system assertions

-dsa | -disablesystemassertions

disable system assertions

-agentlib:<libname>[=<options>]

load native agent library <libname>, e.g. -agentlib:hprof

see also, -agentlib:jdwp=help and -agentlib:hprof=help

-agentpath:<pathname>[=<options>]

load native agent library by full pathname

-javaagent:<jarpath>[=<options>]

load Java programming language agent, see java.lang.instrument

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