Eclipse Jar Packaging Details

Method/Step

In fact, packaging edlipse jar bag mainly catch 3 points is good:

First, the entry address is the class from which to run (certainly this class has the main function);

Second, the project relies on other jar package paths;

Finally, create a MANIFEST.MF file under the Eclipse Project, write the first two information into the file, and add the version number, which is explained in detail in the following steps.

Once you know the above 3 points, start detailing the packaging steps:

2. 1. The demo engineering structure under Eclipse is shown, where Task.java is the main class of the current project run

4. 2. The MANIFEST.MF file definition is as follows:

   manifest-version:1.0

   Main-class:com. Task

   Class-path:lib/dom4j-1.6.1.jar Lib/jaxen-1.1-beta-7.jar

   Attention:

   <1> MANIFEST.MF file The last line must be a blank line.

   <2> Lib/dom4j-1.6.1.jar and Lib/jaxen-1.1-beta-7.jar are separated by a space.

   <3> There is a space after each colon.

6. 3. Eclipse Build Jar file Step (1)

   Select the class or package you want to export in Eclipse, right-click, select Export Sub-option

8. 4. Eclipse Build Jar file Step (2)

   In the dialog box that pops up, select the Java file---Select the jar files

10. 5. Eclipse Build Jar File Step (3)

    Select the location and name of the jar package you want to generate in the text box behind the jar file

12. 6. Eclipse Build Jar file Step (4)

    Note the export generated class files and resources and export Java source files and resources in front of the tick

14. 7. Eclipse Build Jar File Step (5)

    Select Manifest file

16. 8. Place the generated Autoruntask.jar file and the Lib folder that holds the reference package in the same directory, and finally click on the generated jar file to run successfully.

This will be packaged and the introduction is complete.

If you want to run it, start the cmd window, find the path, run "Java-jar *.jar + Parameters" and you will see the results after the run.


The jar package can also be introduced later in other projects, but not just the main function of the portal, which is accessible to all class members, just like the Apache open source jar packages.

Eclipse Jar Packaging Details