PDFBox 解析PDF文档

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package com.wss.pdfbox;import java.io.File;  import java.io.FileInputStream;  import java.io.InputStream;  import java.text.SimpleDateFormat;  import java.util.Calendar;  import java.util.Iterator;  import java.util.List;  import java.util.Map;  import java.util.Set;    import org.apache.pdfbox.pdmodel.PDDocument;  import org.apache.pdfbox.pdmodel.PDDocumentCatalog;  import org.apache.pdfbox.pdmodel.PDDocumentInformation;  import org.apache.pdfbox.pdmodel.PDPage;  import org.apache.pdfbox.pdmodel.PDResources;  import org.apache.pdfbox.pdmodel.graphics.xobject.PDXObjectImage;  import org.apache.pdfbox.util.PDFTextStripper;    /**  * 这里用一句话描述这个类的作用 * @author   * @date 2015-09-17  */public class pdfBoxDemo {        public static final String DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";            /**      * 解析pdf文档信息      * @param pdfPath   pdf文档路径      * @throws Exception      */      public static void pdfParse( String pdfPath, String imgSavePath ) throws Exception      {          InputStream input = null;          File pdfFile = new File( pdfPath );          PDDocument document = null;          try{              input = new FileInputStream( pdfFile );              //加载 pdf 文档              document = PDDocument.load( input );                            /** 文档属性信息 **/              PDDocumentInformation info = document.getDocumentInformation();              System.out.println( "标题:" + info.getTitle() );              System.out.println( "主题:" + info.getSubject() );              System.out.println( "作者:" + info.getAuthor() );              System.out.println( "关键字:" + info.getKeywords() );                            System.out.println( "应用程序:" + info.getCreator() );              System.out.println( "pdf 制作程序:" + info.getProducer() );                            System.out.println( "作者:" + info.getTrapped() );                            System.out.println( "创建时间:" + dateFormat( info.getCreationDate() ));              System.out.println( "修改时间:" + dateFormat( info.getModificationDate()));                                      //获取内容信息              PDFTextStripper pts = new PDFTextStripper();              String content = pts.getText( document );              System.out.println( "内容:" + content );                                          /** 文档页面信息 **/              PDDocumentCatalog cata = document.getDocumentCatalog();              List pages = cata.getAllPages();              int count = 1;              for( int i = 0; i < pages.size(); i++ )              {                  PDPage page = ( PDPage ) pages.get( i );                  if( null != page )                  {                      PDResources res = page.findResources();                                            //获取页面图片信息                      Map imgs = res.getImages();                      if( null != imgs )                      {                          Set keySet = imgs.keySet();                          Iterator it = keySet.iterator();                          while( it.hasNext() )                          {                              Object obj =  it.next();                              PDXObjectImage img = ( PDXObjectImage ) imgs.get( obj );                              img.write2file( imgSavePath + count );                              count++;                          }                      }                  }              }          }catch( Exception e)          {              throw e;          }finally{              if( null != input )                  input.close();              if( null != document )                  document.close();          }      }            /**      * 获取格式化后的时间信息      * @param dar   时间信息      * @return      * @throws Exception      */      public static String dateFormat( Calendar calendar ) throws Exception      {          if( null == calendar )              return null;          String date = null;          try{              String pattern = DATE_FORMAT;              SimpleDateFormat format = new SimpleDateFormat( pattern );              date = format.format( calendar.getTime() );          }catch( Exception e )          {              throw e;          }          return date == null ? "" : date;      }            public static void main( String [] args ) throws Exception{          pdfParse("H:/PDF201508/test.pdf","H:/PDF201508/");      }  }
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