iText是一个十分强大的用java操作pdf的类库,可以读取和写入pdf,以下是使用iText读取pdf目录结构的方法。
public class HelloWorldBookmarks { public static void main ( String [] args ) throws Exception { PdfReader reader = new PdfReader ( "test.pdf" ) ; List list = SimpleBookmark.getBookmark ( reader ) ; for ( Iterator i = list.iterator () ; i.hasNext () ; ) { showBookmark (( Map ) i.next ()) ; } }
private static void showBookmark ( Map bookmark ) { System.out.println ( bookmark.get ( "Title" )) ; ArrayList kids = ( ArrayList ) bookmark.get ( "Kids" ) ; if ( kids == null ) return ; for ( Iterator i = kids.iterator () ; i.hasNext () ; ) { showBookmark (( Map ) i.next ()) ; } }