poi 读取 ppt，并将内容转换成图片

package com.test;

import java.awt.Dimension;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;

import org.apache.poi.hslf.model.TextRun;
import org.apache.poi.hslf.usermodel.RichTextRun;
import org.apache.poi.hslf.usermodel.SlideShow;

public class PptReader {
public static void main(String[] args) {
// 读入PPT文件
File file = new File("F:/20110618.ppt");
doPPTtoImage(file);
}

public static boolean doPPTtoImage(File file) {
boolean isppt = checkFile(file);
if (!isppt) {
System.out.println("你指定的文件不是ppt文档!");
return false;
}
try {

FileInputStream is = new FileInputStream(file);
SlideShow ppt = new SlideShow(is);
is.close();
Dimension pgsize = ppt.getPageSize();
org.apache.poi.hslf.model.Slide[] slide = ppt.getSlides();
for (int i = 0; i < slide.length; i++) {
System.out.print("第" + i + "页。");
if(slide[i].getNotesSheet()!=null&&slide[i].getNotesSheet().getTextRuns()!=null){
//获取第一个备注
System.out.println("备注：" + slide[i].getNotesSheet().getTextRuns()[0].getText());
}
TextRun[] truns = slide[i].getTextRuns();
for (int k = 0; k < truns.length; k++) {
RichTextRun[] rtruns = truns[k].getRichTextRuns();
for (int l = 0; l < rtruns.length; l++) {
rtruns[l].setFontIndex(1);
rtruns[l].setFontName("宋体");
// 获取文本列表
System.out.println(rtruns[l].getText());
}
}
BufferedImage img = new BufferedImage(pgsize.width,
pgsize.height, BufferedImage.TYPE_INT_RGB);
Graphics2D graphics = img.createGraphics();
graphics.setPaint(Color.white);
graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width,
pgsize.height));
slide[i].draw(graphics);
// 这里设置图片的存放路径和图片的格式(jpeg,png,bmp等等),注意生成文件路径
FileOutputStream out = new FileOutputStream("F:/ppttest/pict_"
+ (i + 1) + ".jpeg");
javax.imageio.ImageIO.write(img, "jpeg", out);
out.close();
}
System.out.println("ok");
return true;
} catch (FileNotFoundException e) {
System.out.println(e);
} catch (IOException e) {
e.printStackTrace();
}
return false;
}

// function 检查文件是否为PPT
public static boolean checkFile(File file) {
boolean isppt = false;
String filename = file.getName();
String suffixname = null;
if (filename != null && filename.indexOf(".") != -1) {
suffixname = filename.substring(filename.indexOf("."));
if (suffixname.equals(".ppt")) {
isppt = true;
}
return isppt;
} else {
return isppt;
}
}
}

需要的jar包: poi.jar和poi-scratchpad.jar

转自：http://yijianfengvip.blog.163.com/blog/static/175273432201152311960/