# ClassPathExtender

**Repository Path**: debugging/ClassPathExtender

## Basic Information

- **Project Name**: ClassPathExtender
- **Description**: 拓展java CLASSPATH的工具，不用每次更换或添加第三方类库的时候都拷贝的项目中，或手动添加丑陋的环境变量。
- **Primary Language**: Java
- **License**: GPL-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 0
- **Created**: 2014-10-14
- **Last Updated**: 2020-12-18

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# ClassPathExtender

ClassPathExtender is an open source **Java CLASSPATH management tool** built with Java.

## Goals

When we need to use a third-pary library, the first thing we need to do is to add them to the CLASSPATH.
There are some most common ways to do that:

*   Copy to a location where the path is added to the CLASSPATH. But this will mix up all the jars.
*   Copy to your project. Still has the problem above, and requires a lot more disk space.
*   Add the jars to the CLASSPATH. I don't want to see the disgusting Environment Variable at all.

So I decide to change the way managing the third-pary jars.

**NOTE:** this tool is only suitable for [JDK1.6 or later][1].

## Guide

1.  Add a path to the Environment Variable `CLASSPATH` for a folder you want to put the indexing file for all the other jar files.
For example：`D:\java\mylibs\index\*`
2.  Move ClassPathExtender.jar to this folder.
3.  Move the third-party jars to the folder in `D:\java\mylibs\third-party-lib1\`(I suggests), or leave them where they are.
But suppose the jars are in the folder `D:\java\mylibs\third-party-lib1\`.
4.  Open the CMD and cd to `D:\java\mylibs\`.
5.  Type command `java net.debugging.utils.ClassPathExtender ./third-party-lib1`.
6.  The command above will generate a index jar (***-index.jar) file in current path:`D:\java\mylibs\`.
Move it to the folder `D:\java\mylibs\index\*`.

Now the jars are added to the CLASSPATH.

If you want remove a lib, just move the corresponding index jar file out of `D:\java\mylibs\index\*`.

If you want use an another version of a third-pary library, just move the right version of index jar file in and others versions out.

It's getting simple, the world is getting better!

## Feedback

Any questions or bug reporting, please contact debugging#163.com(relpace # with @).

[1]http://docs.oracle.com/javase/1.5.0/docs/tooldocs/windows/classpath.html