lucene-core-2.0.0.jar在lucene-2.0.0.zip中可以找到。其余版本类似
1. Right click on the JAR (must be in build path)
2. Click on Properties
3. Click on JavaDoc Location 选择lucene-2.0.0-src等zip压缩文件即可!!!
4. Add the location
下载时http://archive.apache.org/dist/lucene/java/ 需要下载 lucene-2.0.0.zip和lucene-2.0.0-src.zip