说明：  一本很适合初学者学习jxta的书籍，是一本国外的书，就目前来说是关于这方面最新的资料了，除了jxta官网上提供的文档资料
(A very suitable for beginners to learn jxta books, is a foreign book, at the present, with regard to the latest information, except jxta official documentation available online)