请帮助，我在任何地方都找不到示例。 this示例中的Java操作方法或类似方法。我将不胜感激。
我有一些桌子enter image description here 如何使TreeView像
Root(someText)
======First(Equipment)
============FirstProduct(Product)
========================FirstComponent (ComponentProduct)
==============================FirstDetail(Detail)
====================================FirstDetailDocument(Document)
==============================FirstComponentDocument(Document)
========================SecondComponent(ComponentProduct)
==============================SecondComponentDocument(Document)
==================FirstProductDocument(Document)
======Second(Equipment)
============SecondProduct(Product)
==================SecondProductDocument(Document)
======Third (Equipment)
============ThirdProduct (Product)
==================ThirdProductDocument(Document)
并从自联接数据库下载数据