poi ppt转换为html，实现在线预览

ppt转换为html的原理就是将ppt转换为图片

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.imageio.ImageIO;

import org.apache.poi.hslf.usermodel.HSLFShape;
import org.apache.poi.hslf.usermodel.HSLFSlideShow;
import org.apache.poi.hslf.usermodel.HSLFSlideShowImpl;
import org.apache.poi.hslf.usermodel.HSLFTextParagraph;
import org.apache.poi.hslf.usermodel.HSLFTextRun;
import org.apache.poi.hslf.usermodel.HSLFTextShape;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xslf.usermodel.XSLFShape;
import org.apache.poi.xslf.usermodel.XSLFTextParagraph;
import org.apache.poi.xslf.usermodel.XSLFTextRun;
import org.apache.poi.xslf.usermodel.XSLFTextShape;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.maiyue.base.utils.ComUtil;
import com.maiyue.base.utils.FileUtils;

/**
* ppt转换为html
* @author chen
*
*/
public class POIPptToHtmlUtils {

private static Logger logger = LoggerFactory.getLogger(POIPptToHtmlUtils.class);

/**
*
* @param sourceFilePath
* @param targetFolder
* @param targetFileName
* @return
*/
public static String pptToHtml(String sourceFilePath, String targetFolder, String targetFileName) {
  FileUtils.createFileFolder(targetFolder);
  File pptFile = new File(sourceFilePath);
  if (pptFile.exists()) {
   try {
    String type = FileUtils.getFileSuffix(sourceFilePath);
    String targetFilePath = targetFolder + "/"+ targetFileName;
    if ("ppt".equals(type)) {
     String htmlStr = toImage2003(sourceFilePath, targetFolder);
     return FileUtils.writeToFile(htmlStr, targetFilePath, "UTF-8");
    } else if ("pptx".equals(type)) {
     String htmlStr = toImage2007(sourceFilePath, targetFolder);
     return FileUtils.writeToFile(htmlStr, targetFilePath, "UTF-8");
    } else {
     logger.error("ppt转换为html,源文件={}不是ppt文件", sourceFilePath);
     return null;
    }

} catch (Exception e) {
    logger.error("ppt文档转换为html,发生异常,源文件={},", sourceFilePath, e);
    return null;
   }
  } else {
   logger.error("ppt文档转换为html,源文件={}不存在", sourceFilePath);
   return null;
  }
}

public static String toImage2007(String sourcePath, String targetDir) throws Exception {
  String htmlStr = "";
  FileInputStream is = new FileInputStream(sourcePath);
  XMLSlideShow ppt = new XMLSlideShow(is);
  is.close();
  FileUtils.createDir(targetDir);
  Dimension pgsize = ppt.getPageSize();
  String imageFileName = "ppt" + ComUtil.genUUID(3);
  StringBuffer sb = new StringBuffer();
  for (int i = 0; i < ppt.getSlides().size(); i++) {
   try {
    for (XSLFShape shape : ppt.getSlides().get(i).getShapes()) {
     if (shape instanceof XSLFTextShape) {
      XSLFTextShape tsh = (XSLFTextShape) shape;
      for (XSLFTextParagraph p : tsh) {
       for (XSLFTextRun r : p) {
        r.setFontFamily("宋体");
       }
      }
     }
    }
    BufferedImage img = new BufferedImage(pgsize.width, pgsize.height, BufferedImage.TYPE_INT_RGB);
    Graphics2D graphics = img.createGraphics();
    // clear the drawing area
    graphics.setPaint(Color.white);
    graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));
    // render
    ppt.getSlides().get(i).draw(graphics);
    // save the output
    String imageDir = targetDir + "/" + imageFileName + "/";
    FileUtils.createDir(imageDir);// create image dir
    // 相对路径
    String relativeImagePath = imageFileName + "/" + imageFileName + "-" + (i + 1) + ".png";
    // 绝对路径
    String imagePath = imageDir + imageFileName + "-" + (i + 1) + ".png";
    sb.append("<br>");
    sb.append("<img src=" + "\"" + relativeImagePath + "\"" + "/>");
    FileOutputStream out = new FileOutputStream(imagePath);
    javax.imageio.ImageIO.write(img, "png", out);
    out.close();
   } catch (Exception e) {
    logger.error("ppt转换为html,发生异常,源文件={}", sourcePath, e);
    System.out.println("第" + i + "张ppt转换出错");
    return null;
   }
  }
  htmlStr = sb.toString();
  return htmlStr;
}

public static String toImage2003(String sourcePath, String targetDir) {
  String htmlStr = "";
  try {
   HSLFSlideShow ppt = new HSLFSlideShow(new HSLFSlideShowImpl(sourcePath));
   FileUtils.createDir(targetDir);
   Dimension pgsize = ppt.getPageSize();
   StringBuffer sb = new StringBuffer();
   String imageFileName = ComUtil.genUUID(5);
   for (int i = 0; i < ppt.getSlides().size(); i++) {
    for (HSLFShape shape : ppt.getSlides().get(i).getShapes()) {
     if (shape instanceof HSLFTextShape) {
      HSLFTextShape tsh = (HSLFTextShape) shape;
      for (HSLFTextParagraph p : tsh) {
       for (HSLFTextRun r : p) {
        r.setFontFamily("宋体");
       }
      }
     }
    }
    BufferedImage img = new BufferedImage(pgsize.width, pgsize.height, BufferedImage.TYPE_INT_RGB);
    Graphics2D graphics = img.createGraphics();
    // clear the drawing area
    graphics.setPaint(Color.white);
    graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));
    // render
    ppt.getSlides().get(i).draw(graphics);
    String imageDir = targetDir + "/" + imageFileName + "/";
    // create image dir
    FileUtils.createDir(imageDir);
    // 相对路径
    String relativeImagePath = imageFileName + "/" + imageFileName + "-" + (i + 1) + ".png";
    // 绝对路径
    String imagePath = imageDir + imageFileName + "-" + (i + 1) + ".png";
    sb.append("<br>");
    sb.append("<img src=" + "\"" + relativeImagePath + "\"" + "/>");
    FileOutputStream out = new FileOutputStream(imagePath);
    javax.imageio.ImageIO.write(img, "png", out);
    out.close();
   }
   htmlStr = sb.toString();
  } catch (Exception e) {
   logger.error("ppt转换为html,发生异常,源文件={}", sourcePath, e);
   return null;
  }

  return htmlStr;
}

/**
*
* @param srcImgPath
* @param distImgPath
* @param width
* @param height
* @throws IOException
*/
public static void resizeImage(String srcImgPath, String distImgPath, int width, int height) throws IOException {
  File srcFile = new File(srcImgPath);
  Image srcImg = ImageIO.read(srcFile);
  BufferedImage buffImg = null;
  buffImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
  buffImg.getGraphics().drawImage(srcImg.getScaledInstance(width, height, Image.SCALE_SMOOTH), 0, 0, null);
  ImageIO.write(buffImg, "JPEG", new File(distImgPath));
}

/*public static void main(String[] args) {
  //POIPptToHtmlUtils.pptToHtml("D:/diagnosis/file/temp//ppt2007.pptx", "D:/diagnosis/file/temp/", "test5.html");
  POIPptToHtmlUtils.pptToHtml("D:/diagnosis/file/temp//ppt2003.ppt", "D:/diagnosis/file/temp/", "test6.html");
}*/

}

poi ppt转换为html，实现在线预览相关推荐

使用aspose方式使excel，ppt，word进行在线预览。（无水印）
使用aspose方式使excel,ppt,word进行在线预览.(无水印) 1.首先,页面需要用jquery中window.open();打开一个新页面. window.open(../fileMan ...
html怎么转换到百度,类似百度文库在线预览文档flash版（支持word、excel、ppt、pdf）+在线预览文档html版...
类似百度文库在线预览文档flash版(支持word.excel.ppt.pdf)+在线预览文档html版 (1).将文档转换为html,只支持支持office文档 (2).将文档转换为flash,实现 ...
OpenOffice在线预览附件
OpenOffice在线预览附件 Author xiuhong.chen@hand-china.com Date 2018/1/20 Desc 在线预览附件功能 1.下载安装包官方下载: http: ...
实现PPT的在线预览（动态，及转PDF）
实现PPT的在线预览(动态,及转PDF) 公司的新需求,需要在网页上动态预览PPT,此处记录下,防止忘记. 之前在网上找了很多资料,比如:用POI 实现等,这里写下自己的实现方法 1.PPT 转PDF ...
SpringBoot 使用LibreOffice 在线预览 doc，doxc，xls，xlsx，ppt，pptx 文件
接上一篇:linux环境源码安装unoconv Linux环境_源码安装Unoconv实现文件在线预览doc,doxc,xls,xlsx,ppt,pptx 文件 https://gblfy.blog. ...
SpringBoot 使用unoconv 在线预览 doc，doxc，xls，xlsx，ppt，pptx 文件
接上一篇:linux环境源码安装unoconv Linux环境_源码安装Unoconv实现文件在线预览doc,doxc,xls,xlsx,ppt,pptx 文件 https://gblfy.blog. ...
office在线预览哪家强？不能播放ppt动画，不能监听翻页？
前言众所周知,word.excel.ppt 和 pdf 文件在线预览有很多解决方案,但大多无法播放 ppt 动画,或者功能非常单一.这不,最近产品经理闭关修炼三天,提出了如下需求: 监听文档翻页,根 ...
实现word在线预览有php的写法也有插件似
1 <?php2 //header("Content-type:text/html;charset=utf-8");3 //word转html 展示4 $lj=$_GET[' ...
前端实现文件在线预览
需求: 一个览pdf.word.xls.ppt等文件需要在线预览功能介绍使用 XDOC文档预览云服务文档地址基于HTTP的REST方式调用,只需要传入URL! 支持pdf.docx.xlsx.p ...
office 文档在线预览新姿势之永中云转换
你知道的越多,你不知道的越多点赞再看,养成习惯如果您有疑问或者见解,或者需要毕业设计,大作业指导,购买付费源码等,欢迎指教: 企鹅:869192208 文章目录前言: 一.接入准备二.预览 w ...

poi ppt转换为html，实现在线预览

poi ppt转换为html，实现在线预览相关推荐

最新文章

热门文章