如何在Eclipse的library文件夹中组织jar文件？

Question

I have a Java Project in Eclipse, and a Java Dynamic Web Project in Eclipse. In the former, all the jar files are shown individually under the top-level project folder. In the latter, the jar files are under a Libraries folder and the navigation is more convenient.

Is it possible to organize them in the same way in the Java Project also? If so, how?

Update: It is the Project Explorer View. For the Java Project, I see: "my_project_name" with the arrow expanded to point downwards, then I see: "package_icon src/main/java" and below that "package_icon src/main/resources" and then 20 jar files one below the other: "jar_icon activation-1.1.jar", ...

For the Java Dynamic Web Project I see: "my_project_name" as above, then I see: "JAX-WS Web Services" (unexpanded), then "Deployment Descriptor" (unexpanded), then "Java Resources" which I have expandeded, so I see the components of it below, of which the first is: "package_icon src/main/java", then below it, "package_icon src/main/resources", then below it "libraries_icon Libraries" instead of 20 jars ! I have the option of expanding Libraries if I really need to see the 20 jars.

Answer 1

The only option I found to make things prettier in Eclipse Kepler is to:

1. In the Project Explorer window there is a down arrow in the upper right corner. Select that and then Customize View.

2. Select 'Libraries from external' and then OK.

Kind of cheesy...

EDIT: Of course I had to go and do some more digging...and it looks like I'll have to try this and see how it works.

Answer 2

I noticed this "feature" on Eclipse Juno (latest version), when you have a jar file added to the build path it is not shown as a single file on the project.

Try removing one of the jars from the build path to see if it shows up again.

I couldn't find how to turn it off though.

BTW... the project layout for your "Java Project" is more akin to a "Maven Project", which is a bit more powerful.

Answer 3

Similar to M Miller's answer (but for Juno), click Show 'Referenced Libraries' Node in the dropdown of the Package Explorer window:

I'm using:

Eclipse IDE for Java Developers

Version: Juno Release
Build id: 20120614-1722

Answer 4

You should change into the Package Explorer by Window > show View. It will display all the referenced libraries in a Referenced Libraries folder.