eclipse中的Maven动态Web项目为依赖项目部署无效的jar文件(Maven dynamic web project in eclipse deploys invalid jar files for dependent project(s))

 我有一个导入eclipse的maven web项目。 我有另一个maven项目（生成一个jar文件），该web项目依赖。 
 
 这两个项目在从命令行执行时都可以正常工作。 mvn包创建一个war文件，该文件从web项目的maven存储库中获取它所依赖的jar文件。 运行库时，mvn包会创建一个有效的jar文件。 
 
 当我将库导入Eclipse时，m2e认识到Web项目依赖于库并更新了项目的某些部分，以利用这两个Maven项目都驻留在单个Eclipse工作区中的事实。 Web项目的“Java Build Path”首选项的“Libraries”选项卡的“Maven Dependencies”部分将删除库jar文件并将其替换为库项目。 随着库在Eclipse中进行更新，Web项目可识别这些更改，而无需安装/部署库。 
 
 当我尝试在Eclipse中运行Web应用程序时，会发生该问题。 由于Eclipse实际上是针对Eclipse中的库版本构建Web项目的，因此它不会从Maven存储库部署库文件，它会创建一个新的jar文件，该文件是Eclipse中当前版本库的快照。 所有这些对我来说一般都很好，但是在我正在处理的项目中，Eclipse正在创建的jar文件存在问题。 而不是插入库的类文件，它似乎将我的Maven项目的“src”目录并将其压缩为jar文件。 jar文件的内容如下所示： 
 
-main
  -java
    -com
      -... *.java
  -resources
    -...
-test
  -java
    -com
      -... *.java
 
 我期望它看起来更像是： 
 
-com
  -... *.class
 
 既然我已经成功地使用过这种类型的项目，我试图弄清楚是否需要配置一些东西，或者如果我碰到一个bug。 
 
 我在Eclipse Indigo上使用最新的m2e（1.0.200.20111228-1245）更新（Build ID：20120216-1857）。 

I have a maven web project that imported into eclipse. I have another maven project (generates a jar file) that the web project depends on. 
 
Both of these projects work correctly when executed from the command line. mvn package creates a war file which pulls the jar it depends on from the maven repository for the web project. mvn package creates a valid jar file when run for the library.
 
When I import the library into Eclipse, m2e recognizes that the web project depends on the library and updates parts of the project to take advantage of the fact that both maven projects are hosted within a single Eclipse workspace. The "Maven Dependencies" section of the "Libraries" tab of the "Java Build Path" preference for the web project removes the library jar file and replaces it with the library project. As the library is updated in Eclipse, the web project recognizes those changes without having to install/deploy the library.
 
The problem occurs when I attempt to run the web application in Eclipse. Because Eclipse is actually building the Web project against the version of the library in Eclipse, it does not deploy the library file from the maven repository, it creates a new jar file that's a snapshot of the current version of the library in Eclipse. All of this has generally worked well for me, but on the project I'm currently working on there's a problem with the jar file that Eclipse is creating. Instead of inserting the class files for the library, it appears that it's taking the "src" directory of my Maven project and zipping it up as the jar file. The contents of the jar file look something like:
 
-main
  -java
    -com
      -... *.java
  -resources
    -...
-test
  -java
    -com
      -... *.java
 
Where I would expect it to look more like:
 
-com
  -... *.class
 
Since I have successfully used this type of project before, I'm trying to figure out if there's something I need to configure or if I've just run into a bug.
 
I'm using the latest update of m2e (1.0.200.20111228-1245) on Eclipse Indigo (Build id: 20120216-1857).

原文：https://stackoverflow.com/questions/9710925