Java tutorial
/* ==================================================================== Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ==================================================================== */ package org.apache.poi.xwpf.extractor; import java.io.IOException; import java.util.List; import org.apache.poi.ooxml.POIXMLDocument; import org.apache.poi.ooxml.extractor.POIXMLTextExtractor; import org.apache.poi.openxml4j.exceptions.OpenXML4JException; import org.apache.poi.openxml4j.opc.OPCPackage; import org.apache.poi.xwpf.model.XWPFCommentsDecorator; import org.apache.poi.xwpf.model.XWPFHeaderFooterPolicy; import org.apache.poi.xwpf.usermodel.IBodyElement; import org.apache.poi.xwpf.usermodel.ICell; import org.apache.poi.xwpf.usermodel.IRunElement; import org.apache.poi.xwpf.usermodel.XWPFDocument; import org.apache.poi.xwpf.usermodel.XWPFHyperlink; import org.apache.poi.xwpf.usermodel.XWPFHyperlinkRun; import org.apache.poi.xwpf.usermodel.XWPFParagraph; import org.apache.poi.xwpf.usermodel.XWPFRelation; import org.apache.poi.xwpf.usermodel.XWPFRun; import org.apache.poi.xwpf.usermodel.XWPFSDT; import org.apache.poi.xwpf.usermodel.XWPFSDTCell; import org.apache.poi.xwpf.usermodel.XWPFTable; import org.apache.poi.xwpf.usermodel.XWPFTableCell; import org.apache.poi.xwpf.usermodel.XWPFTableRow; import org.apache.xmlbeans.XmlException; import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTSectPr; /** * Helper class to extract text from an OOXML Word file */ public class XWPFWordExtractor extends POIXMLTextExtractor { public static final XWPFRelation[] SUPPORTED_TYPES = { XWPFRelation.DOCUMENT, XWPFRelation.TEMPLATE, XWPFRelation.MACRO_DOCUMENT, XWPFRelation.MACRO_TEMPLATE_DOCUMENT }; private XWPFDocument document; private boolean fetchHyperlinks; private boolean concatenatePhoneticRuns = true; public XWPFWordExtractor(OPCPackage container) throws XmlException, OpenXML4JException, IOException { this(new XWPFDocument(container)); } public XWPFWordExtractor(XWPFDocument document) { super(document); this.document = document; } public static void main(String[] args) throws Exception { if (args.length < 1) { System.err.println("Use:"); System.err.println(" XWPFWordExtractor <filename.docx>"); System.exit(1); } POIXMLTextExtractor extractor = new XWPFWordExtractor(POIXMLDocument.openPackage(args[0])); System.out.println(extractor.getText()); extractor.close(); } /** * Should we also fetch the hyperlinks, when fetching * the text content? Default is to only output the * hyperlink label, and not the contents */ public void setFetchHyperlinks(boolean fetch) { fetchHyperlinks = fetch; } /** * Should we concatenate phonetic runs in extraction. Default is <code>true</code> * @param concatenatePhoneticRuns */ public void setConcatenatePhoneticRuns(boolean concatenatePhoneticRuns) { this.concatenatePhoneticRuns = concatenatePhoneticRuns; } public String getText() { StringBuilder text = new StringBuilder(64); XWPFHeaderFooterPolicy hfPolicy = document.getHeaderFooterPolicy(); // Start out with all headers extractHeaders(text, hfPolicy); // Process all body elements for (IBodyElement e : document.getBodyElements()) { appendBodyElementText(text, e); text.append('\n'); } // Finish up with all the footers extractFooters(text, hfPolicy); return text.toString(); } public void appendBodyElementText(StringBuilder text, IBodyElement e) { if (e instanceof XWPFParagraph) { appendParagraphText(text, (XWPFParagraph) e); } else if (e instanceof XWPFTable) { appendTableText(text, (XWPFTable) e); } else if (e instanceof XWPFSDT) { text.append(((XWPFSDT) e).getContent().getText()); } } public void appendParagraphText(StringBuilder text, XWPFParagraph paragraph) { CTSectPr ctSectPr = null; if (paragraph.getCTP().getPPr() != null) { ctSectPr = paragraph.getCTP().getPPr().getSectPr(); } XWPFHeaderFooterPolicy headerFooterPolicy = null; if (ctSectPr != null) { headerFooterPolicy = new XWPFHeaderFooterPolicy(document, ctSectPr); extractHeaders(text, headerFooterPolicy); } for (IRunElement run : paragraph.getRuns()) { if (!concatenatePhoneticRuns && run instanceof XWPFRun) { text.append(((XWPFRun) run).text()); } else { text.append(run); } if (run instanceof XWPFHyperlinkRun && fetchHyperlinks) { XWPFHyperlink link = ((XWPFHyperlinkRun) run).getHyperlink(document); if (link != null) text.append(" <").append(link.getURL()).append(">"); } } // Add comments XWPFCommentsDecorator decorator = new XWPFCommentsDecorator(paragraph, null); String commentText = decorator.getCommentText(); if (commentText.length() > 0) { text.append(commentText).append('\n'); } // Do endnotes and footnotes String footnameText = paragraph.getFootnoteText(); if (footnameText != null && footnameText.length() > 0) { text.append(footnameText).append('\n'); } if (ctSectPr != null) { extractFooters(text, headerFooterPolicy); } } private void appendTableText(StringBuilder text, XWPFTable table) { //this works recursively to pull embedded tables from tables for (XWPFTableRow row : table.getRows()) { List<ICell> cells = row.getTableICells(); for (int i = 0; i < cells.size(); i++) { ICell cell = cells.get(i); if (cell instanceof XWPFTableCell) { text.append(((XWPFTableCell) cell).getTextRecursively()); } else if (cell instanceof XWPFSDTCell) { text.append(((XWPFSDTCell) cell).getContent().getText()); } if (i < cells.size() - 1) { text.append("\t"); } } text.append('\n'); } } private void extractFooters(StringBuilder text, XWPFHeaderFooterPolicy hfPolicy) { if (hfPolicy == null) return; if (hfPolicy.getFirstPageFooter() != null) { text.append(hfPolicy.getFirstPageFooter().getText()); } if (hfPolicy.getEvenPageFooter() != null) { text.append(hfPolicy.getEvenPageFooter().getText()); } if (hfPolicy.getDefaultFooter() != null) { text.append(hfPolicy.getDefaultFooter().getText()); } } private void extractHeaders(StringBuilder text, XWPFHeaderFooterPolicy hfPolicy) { if (hfPolicy == null) return; if (hfPolicy.getFirstPageHeader() != null) { text.append(hfPolicy.getFirstPageHeader().getText()); } if (hfPolicy.getEvenPageHeader() != null) { text.append(hfPolicy.getEvenPageHeader().getText()); } if (hfPolicy.getDefaultHeader() != null) { text.append(hfPolicy.getDefaultHeader().getText()); } } }