使用sax，stax或DOM将XML转换为java中的数据结构

So I've been working on this project of mine for the past two weeks and I've not made any headway with this. My issue isn't with parsing the XML file to begin with, but rather what to do with it afterwards. So I've made programs with SAX, StAX and DOM parsers in which I take a very large XML file and then print out the elements and their values in order. However, the XML I'm dealing with is large so using DOM is inefficient of course. Another problem I have however is that the xml file has 40,000 entries of information and its structure is complicated. This is a little excerpt of it:So I've been working on this project of mine fo