Java - 从 JAR 访问 pom.xml 文件

Question

I'm working on a plugin capable of displaying the list of the dependencies of a Maven project. To make this possible, I read the pom.xml file and print data on the console for debugging. This worked just fine, until I tried it from the JAR file : I got a FileNotFoundException (for the pom.xml file)

• Is there a better way to list dependencies of a Maven project ?
• How to read pom.xml when we are inside the JAR file ?

Here is my original question

Answer 1

As suggested JF Meier , I tried to read the pom.xml file as a resource and it worked.

MyClass obj = new MyClass();
InputStream pomFile = obj.getClass().getClassLoader().getResourceAsStream("META-INF/maven/groupId/artifactId/pom.xml");

The only issue now is that the path to the file will not be the same for each project as it depends of the groupId and the artifactId

Answer 2

What worked for me was

$ unzip foo.jar foo
$ cat foo/META-INF/maven/com.bar/foo/pom.xml

Another idea that didn't work for me instead of unzip ping is jar -xf foo.jar