在何处放置JAR文件以避免冲突？ [英] Where To Put JAR Files To Avoid Conflicts?

问题描述

Windows XP Pro
WebLogic 11g
Tomcat 7
JDK 1.6

Windows XP Pro WebLogic 11g Tomcat 7 JDK 1.6

我一直把补充JAR文件放在

I've been putting supplemental JAR files in

JAVA_HOME/jre/lib/ext ( a JDK installation )

多年。它比改变我的CLASSPATH更方便，我开发的所有东西都可以在一个地方访问一组东西。

for years. It is much more convenient than altering my CLASSPATH and everything I develop has access to one set of stuff in one place.

我需要一个不同或更好的方法。

I need a different or better approach though.

我最近在我的计算机上安装了WebLogic 11g。由于我不喜欢在我的机器上安装多个JDK或JVM，因此我将JAVA_HOME变量设置为指向那里。

I recently installed WebLogic 11g on on my computer. Since I do not like having multiple JDKs or JVMs on my machine I set my JAVA_HOME variable to point to there.

然后我将servlet-api.jar放在那里进行编译我的webapps。一切都很好。

I then put a servlet-api.jar there to compile my webapps. All was well.

然后我安装了Tomcat 7. Tomcat 7在CATALINA_HOME / lib中有自己的servlet-api.jar。在CATALINA_HOME / lib中有一个servlet-api.jar，在JAVA_HOME / jre / lib / ext中有一个导致Tomcat 7抛出错误。但是，我需要在JAVA_HOME / jre / lib / ext中编译我的webapps。

Then I installed Tomcat 7. Tomcat 7 has its own servlet-api.jar in CATALINA_HOME/lib. Having a servlet-api.jar in CATALINA_HOME/lib and one in JAVA_HOME/jre/lib/ext causes Tomcat 7 to throw errors. However, I need one in JAVA_HOME/jre/lib/ext to compile my webapps.

是否有比从CATALINA_HOME / lib删除servelt-api.jar更优雅的解决方案？

Is there a more graceful solution than deleting servelt-api.jar from CATALINA_HOME/lib ?

谢谢

推荐答案

不要将Jar放入 / ext ，但是根据您的实际EE框架进行编译。这样，当您的Tomcat（或其他EE安装）随附的 .jar 版本发生更改时，您将不会遇到问题。所以不要再将 .jar 放在ext中，并将构建路径更改为实际的 EE环境。

Don't put the Jar in /ext, but compile against your actual EE framework. In that way you won't run into problems when the version of the .jars delivered with your Tomcat (or other EE installation) changes. So don't put the .jar in ext anymore and change the build path to your actual EE environment.

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