(The Lucene source code analysis carried by the Java Niuren's Juexian (forfuture1978) has a very thorough explanation of 527 pages, which is a great work to deeply understand the principles of Lucene. We strongly recommend blog.csdn/forfuture1978cnblogs/forfuture1978/forfuture1978.javaeye/This material includes the following attachments:
Lucene Principle and Code Analysis Complete Version. pdf
Including multiple files, please download and test by yourself!)