Question

我试图从JAVA文件中获取摘要信息，但我找不到任何东西。我尝试了org.apache.poi.hpsf.*。

我需要作者，主题，评论，关键词和标题。

       File rep = new File("C:\\Cry_ReportERP006.rpt");


        /* Read a test document <em>doc</em> into a POI filesystem. */
        final POIFSFileSystem poifs = new POIFSFileSystem(new FileInputStream(rep));
        final DirectoryEntry dir = poifs.getRoot();
        DocumentEntry dsiEntry = null;
        try
        {
            dsiEntry = (DocumentEntry) dir.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME);
        }
        catch (FileNotFoundException ex)
        {
            /*
             * A missing document summary information stream is not an error
             * and therefore silently ignored here.
             */
        }

        /*
         * If there is a document summry information stream, read it from
         * the POI filesystem.
         */
        if (dsiEntry != null)
        {
            final DocumentInputStream dis = new DocumentInputStream(dsiEntry);
            final PropertySet ps = new PropertySet(dis);
            final DocumentSummaryInformation dsi = new DocumentSummaryInformation(ps);
            final SummaryInformation si = new SummaryInformation(ps);


            /* Execute the get... methods. */
            System.out.println(si.getAuthor());

Answer 1

如http://poi.apache.org/overview.html中的POI概述所述，文件解析器的类型更多。以下示例从2003 office文件中提取作者/创建者：

public static String parseOLE2FileAuthor(File file) {
String author=null;
try {

    FileInputStream stream = new FileInputStream(file);
    POIFSFileSystem poifs = new POIFSFileSystem(stream);
    DirectoryEntry dir = poifs.getRoot();
    DocumentEntry siEntry =      (DocumentEntry)dir.getEntry(SummaryInformation.DEFAULT_STREAM_NAME);
    DocumentInputStream dis = new DocumentInputStream(siEntry);
    PropertySet ps = new PropertySet(dis);
    SummaryInformation si = new SummaryInformation(ps);

    author=si.getAuthor();
    stream.close();

} catch (IOException ex) {
    ex.getStackTrace();
} catch (NoPropertySetStreamException ex) {
    ex.getStackTrace();
} catch (MarkUnsupportedException ex) {
    ex.getStackTrace();
} catch (UnexpectedPropertySetTypeException ex) {
    ex.getStackTrace();
}
return author;

}

对于docx，pptx，xlsx，POI有专门的类。 .docx文件的示例：

public static String parseDOCX(File file){
String author=null;
FileInputStream stream;
try {
    stream = new FileInputStream(file);
    XWPFDocument docx = new XWPFDocument(stream);
    CoreProperties props = docx.getProperties().getCoreProperties();
    author=props.getCreator();
    stream.close();
} catch (FileNotFoundException ex) {
   ex.printStackTrace();
} catch (IOException ex) {
    ex.printStackTrace();
}


return author;
}

用于PPTX使用XMLSlideShow或XMLWorkbook而不是XMLDocument。

Answer 2

请在此处找到示例代码 - Appache POI how to

简而言之，您可以成为听众MyPOIFSReaderListener：

    SummaryInformation si = (SummaryInformation)
             PropertySetFactory.create(event.getStream());
    String title = si.getTitle();
    String Author= si.getLastAuthor();
    ......

并将其注册为：

    POIFSReader r = new POIFSReader();
    r.registerListener(new MyPOIFSReaderListener(),
                   "\005SummaryInformation");
    r.read(new FileInputStream(filename));

Answer 3

对于2003 Office文件，可以使用从POIDocument继承的类。这是doc文件的示例：

FileInputStream in = new FileInputStream(file);
HWPFDocument doc = new HWPFDocument(in);
author = doc.getSummaryInformation().getAuthor();

和HSLFSlideShowImpl用于ppt，
适用于xls的HSSF工作簿，
HDGF图为vsd。

SummaryInformation类中还有许多其他文件信息。

对于2007年或更高版本的Office文件，请参见@Dragos Catalin Trieanu的答案

如何使用Java / Apache POI获取文件摘要信息

3 个答案: