项目地址，before 4.0 ：http://www.getopt.org/luke/或https://code.google.com/archive/p/luke/
项目地址，newer: https://github.com/tarzanek/luke 。没有二进制发行版，需要自己用ant编译。
1.简介
Luke is a handy development and diagnostic tool, which accesses already existing Lucene indexes and allows you to display and modify their content in several ways:
· browse by document number, or by term
· view documents / copy to clipboard
· retrieve a ranked list of most frequent terms
· execute a search, and browse the results
· analyze search results
· selectively delete documents from the index
· reconstruct the original document fields, edit them and re-insert to the index
· optimize indexes
· open indexes consisting of multiple parts, and/or located on Hadoop filesystem
· and much more...
2.使用
界面见图2-1.
图2-1 Luck界面