完美封装word excel ppt pdf文件解析包，生成手机页面

package com.enterise.web.htmlgen.doc; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.apache.poi.hwpf.HWPFDocument; import org.apache.poi.hwpf.model.PicturesTable; import org.apache.poi.hwpf.usermodel.Paragraph; import org.apache.poi.hwpf.usermodel.Picture; import org.apache.poi.hwpf.usermodel.Range; import com.enterise.web.htmlgen.HtmlGenerator; import com.enterise.web.htmlgen.HtmlPage; public class Word2Html implements HtmlGenerator { private HWPFDocument document; private int preferWordsNumberPerPage; private float pageWordsNumberChangeRatio; private WordHtmlBuilder htmlBuilder; private int wordsNumberCounter1 = 0; private int wordsNumberCounter2 = 0; private List paragraphList; private HtmlPage htmlPage; private List pictureList; public Word2Html(InputStream wordInputStream, OutputStream htmlOutputStream) { this(wordInputStream, htmlOutputStream, 1000, 0.05f); } public Word2Html(InputStream wordInputStream, OutputStream htmlOutputStream, int preferWordsNumberPerPage, float pageWordsNumberChangeRatio) { this.preferWordsNumberPerPage = preferWordsNumberPerPage; this.pageWordsNumberChangeRatio = pageWordsNumberChangeRatio; try { document = new HWPFDocument(wordInputStream); } catch (IOException e) { e.printStackTrace(); } htmlBuilder = new WordHtmlBuilder(); htmlBuilder.addHtmlPage(new WordHtmlPage()); paragraphList = new ArrayList(); pictureList = new ArrayList(); } public void generate() { Range range = document.getRange(); for (int i = 0; i < range.numParagraphs(); i++) { Paragraph p = range.getParagraph(i); paragraphList.add(p); } processParagraphs(); PicturesTable picturesTable = document.getPicturesTable(); List pictures = picturesTable.getAllPictures(); Iterator iter = pictures.iterator(); while (iter.hasNext()) { Picture p = (Picture)iter.next(); pictureList.add(p); } htmlBuilder.addPictures(pictureList); htmlBuilder.writeToFile(); } private int getMinPageWordsNumber() { return preferWordsNumberPerPage - Math.round(preferWordsNumberPerPage * pageWordsNumberChangeRatio); } private int getMaxPageWordsNumber() { return preferWordsNumberPerPage + Math.round(preferWordsNumberPerPage * pageWordsNumberChangeRatio); } private void processParagraphs() { if (paragraphList == null) { return; } Iterator iter = paragraphList.iterator(); if (iter == null) { return; } while (iter.hasNext()) { Paragraph paragraph = (Paragraph)iter.next(); processParagraph(paragraph); } } private void processParagraph(Paragraph paragraph) { String paragraphText = paragraph.text(); wordsNumberCounter2 = wordsNumberCounter1; wordsNumberCounter1 += paragraphText.length(); // 增加一个段落后页面字数不超过preferWordsNumberPagePage限制 if (wordsNumberCounter1 < preferWordsNumberPerPage) { WordHtmlPage currentPage = (WordHtmlPage)htmlBuilder.getCurrentPage(); currentPage.addParagraph(paragraphText); } // 增加一个段落后页面字数超过preferWordsNumberPagePage限制 if (wordsNumberCounter1 > preferWordsNumberPerPage) { int difference1 = wordsNumberCounter1 - preferWordsNumberPerPage; int difference2 = preferWordsNumberPerPage - wordsNumberCounter2; // 增加段落后当前页面字数浮动范围不超出preferWordsNumberPerPage * pageWordsNumberChangeRatio if (difference1 / preferWordsNumberPerPage < pageWordsNumberChangeRatio && difference2 / preferWordsNumberPerPage < pageWordsNumberChangeRatio) { // 如果添加段落后字数浮动差值小于不添加段落后字数浮动差值 if (difference1 < difference2) { WordHtmlPage currentPage = (WordHtmlPage)htmlBuilder.getCurrentPage(); currentPage.addParagraph(paragraphText); // 如果添加段落后字数浮动差值大于不添加段落后字数浮动差值 } else { htmlBuilder.addHtmlPage(new WordHtmlPage()); wordsNumberCounter1 = 0; wordsNumberCounter2 = 0; WordHtmlPage currentPage = (WordHtmlPage)htmlBuilder.getCurrentPage(); currentPage.addParagraph(paragraphText); } // 增加段落后当前页面字数浮动范围超出preferWordsNumberPerPage * pageWordsNumberChangeRatio } else { String subParagraphText1 = paragraphText.substring(0, preferWordsNumberPerPage - wordsNumberCounter2); WordHtmlPage currentPage = (WordHtmlPage)htmlBuilder.getCurrentPage(); currentPage.addParagraph(subParagraphText1); String subParagraphText2 = paragraphText.substring( preferWordsNumberPerPage - wordsNumberCounter2); htmlBuilder.addHtmlPage(new WordHtmlPage()); currentPage = (WordHtmlPage)htmlBuilder.getCurrentPage(); currentPage.addParagraph(subParagraphText2); wordsNumberCounter1 = 0; wordsNumberCounter2 = 0; } } } public static void main(String[] args) { InputStream is = null; try { is = new FileInputStream("test.doc"); } catch (FileNotFoundException e) { e.printStackTrace(); } Word2Html word2Html = new Word2Html(is, null); word2Html.generate(); } }