可以通过eclipse（和m2e）的方式来处理WEB-INF \lib吗？ [英] Can maven treat WEB-INF\lib the way eclipse (and m2e) does?

问题描述

我有一个servlet / jsp web项目，它在eclipse上运行良好，并被导出为war罚款（一旦我清理它就是）。我把这个项目从除了一个homebrew jar 之外的 WEB-INF \lib 文件夹（删除所有依赖项）工作区）。当我运行包 maven目标时，我会收到来自此jar的缺少类的消息：

  [错误]编译错误：
 [INFO] --------------------------------- ---------------------------- 
＃.....注意这是一个自定义JAR 
 [错误] /C:/path/DataServlet.java:[3,30] package xxx.java.helpers不存在
  

现在已经被问到之前，最严格的解决方案似乎是创建一个本地的回购：我可以添加jar到maven 2构建类路径而不安装它们吗？（注意：我在maven 3 ）。

我想避免这一点 - 所以有什么方法，maven将只是将这个jar填充到$ code> WEB-INF \lib 在 war ？

使用一些maven插件的解决方案 cp 欢迎战争中 WEB-INF \lib 的内容 - 虽然我只是有这样的感觉应该有一个解决方案，考虑到这个文件夹的特殊性质。

观察：

• Alt + F5删除此行：

    classpathentry kind =conpath =org.eclipse.jst.j2ee.internal.web.container/> 
    

  它对应于Java Build Path中的Web App库。所以不仅maven拒绝考虑到 WEB-INF \lib - 它也会完全打破eclipse的构建路径。

相关：

• Maven：如何将jar包含在Eclipse中，它们在存储库中不可用？


• 使用maven eclipse插件： - 与m2e不兼容


• m2e eclipse插件如何与eclipse交互？ - 显然m2e检查pom然后cal ls eclipse构建器（因此读取 .classpath ）


• Eclipse启用maven的Web应用程序引用工作空间项目，但是在运行Tomcat服务器


• 部署一个依赖于在Eclipse中运行的Tomcat或Jboss的Maven项目

解决方案

您是否将WEB-INF \lib中的jar添加为依赖关系：

  <依赖性> 
< groupId> someGroupId< / groupId> 
< artifactId> someArtifactId< / artifactId> 
< version> 1.0.0< / version> 
< scope> system< / scope> 
< systemPath> $ {basedir} / src / main / webapp / WEB-INF / lib / homebrew jar< / systemPath> 
< / dependency> 
  

I have a servlet/jsp web project which runs fine on eclipse and is exported as war fine (once I clean it that is). I mavenized the project deleting all of the dependencies from the WEB-INF\lib folder except a homebrew jar (the output of another project in the workspace). When I run the package maven goal I get messages for missing classes from this jar:

[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
#..... NOTICE THIS COMES FROM A CUSTOM JAR
[ERROR] /C:/path/DataServlet.java:[3,30] package xxx.java.helpers does not exist

Now this has been asked before and the most rigorous solution appears to be to create a local repo: Can I add jars to maven 2 build classpath without installing them? (NB: I am at maven 3).

I would like to avoid this - so is there any way maven will just stuff this jar to WEB-INF\lib in the war ?

Solutions that use some maven plugin to cp the contents of the WEB-INF\lib in the war are welcome - although I just have this feeling that there should be a solution that takes into account the "special" nature of this folder.

Observations:

• Alt+F5 removes this line:

  <classpathentry kind="con" path="org.eclipse.jst.j2ee.internal.web.container"/>
  

  which corresponds to the "Web App libraries" in the Java Build Path. So not only maven refuses to take into account the WEB-INF\lib - it also breaks the build path of eclipse completely.

Related:

• Maven: How to include jars in Eclipse, which are not available in repository?
• Uses the maven eclipse plugin : update my classpath with an Eclipse User Library via the maven eclipse plugin - not compatible with m2e
• How does the m2e eclipse plugin interact with eclipse? - apparently m2e checks the pom then calls the eclipse builders (hence the .classpath is read)
• Eclipse maven-enabled web app references workspace projects, but those are not deployed when running Tomcat server
• Deploying a Maven project with dependencies to Tomcat or Jboss running within Eclipse

解决方案

Did you add this jar from WEB-INF\lib as a dependency like this:

<dependency>
  <groupId>someGroupId</groupId>
  <artifactId>someArtifactId</artifactId>
  <version>1.0.0</version>
  <scope>system</scope>
  <systemPath>${basedir}/src/main/webapp/WEB-INF/lib/homebrew jar</systemPath>
</dependency>

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