External jars in eclipse plug-in

Question

I'm creating an eclipse plug-in and I'm having trouble with external jars. In my plug-in I start an application which requires some external jars. What do I have to do to export them automatically with the rest of the plug-in?

Thanks in advance :)

Answer 1

1. Open your plugin.xml
2. Go to Runtime tab and add your JAR in the classpath section

Answer 2

By following the steps below, the external JARs will be included when you export your plug-in:

1. Copy the required external JAR files into a folder in your plug-in project; I like to call this folder lib , but whatever works for you.
2. Open the build.properties in your plug-in project and check the JARs you want to include in the build in the Binary Build section on the left.

Answer 3

This is an easy way, though it does create an additional plug-in.

In Eclipse:

• Choose New>Other , then Plug-in Development>Plug-in from existing JAR archives .
• Choose the jars you want to include.
• On the next page, configure the plug-in.
• In your plug-in's manifest, add the new plug-in as a dependency.
• In your plug-in's Properties, add the new project under Java Build Path on the Projects tab.

Edit: You may be able to combine the jars into your plug-in by instead combining both suggestions of Zsolt and user714965 below.

Answer 4

This is what has worked for me. If they are truly external, and this is a project for your company that is not going to be in the "wild" and you control the environment, and you have them out on the file system say at /opt/java/lib/somedir/some.jar you can tell the bundle where to find them by adding them to the Bundle-ClassPath entry in the MANIFEST.MF under META-INF. The syntax is: Bundle-ClassPath: ., external:/opt/java/lib/somedir/some.jar, external:/opt/java/lib/someotherdir/someother.jar

Also it would be prudent to use these in your build path so that you are working with the same jars in both build and runtime environments.

I have done this where the Jars are multi-purpose (such as apache-commons) on our file systems and again we control the environment.

Reference the following: http://www.eclipsezone.com/eclipse/forums/t51870.html

Answer 5

1. Copy the required external JAR files into a folder in your plug-in project; I like to call this folder lib, but whatever works for you.
2. ..but as apposed to Zsolt Török (his solution did not work for me) I double-clicked on the plugin.xml, went to the build tab, at the bottom, I clicked Add JARs..., and hey presto, it showed my project, and I then navigated to lib and included the external jar, as per step 1.

Answer 6

Andy Thomas的方法大多有效，但您还需要在新的包装器插件中导出现有插件所需的包，以便插件在运行时可以访问它们。