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.Util;
import com.maiyue.base.utils.FileUtils;
/**
* ppt转换为html
* @authorchen
*
*/
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 = toImage(sourceFilePath, targetFolder);
return FileUtils.writeToFile(htmlStr, targetFilePath, "UTF-8");
} else if ("pptx".equals(type)) {
String htmlStr = toImage(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 toImage(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 toImage(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//ppt.pptx", "D:/diagnosis/file/temp/", "test5.html");
POIPptToHtmlUtils.pptToHtml("D:/diagnosis/file/temp//ppt.ppt", "D:/diagnosis/file/temp/", "test6.html");
}*/
}
如果觉得《poi ppt转换为html 实现预览》对你有帮助，请点赞、收藏，并留下你的观点哦！
