java利用poi 把ppt转化为图片,

导入jar包：
poi-3.8.jar
poi-ooxml-3.9.jar
poi-scratchpad-3.8.jar
代码：
 1 package test4;
 2 
 3 import java.awt.Dimension;
 4 import java.io.File;
 5 import java.io.FileInputStream;
 6 import java.io.FileNotFoundException;
 7 import java.io.FileOutputStream;
 8 import java.io.IOException;
 9 
10 import org.apache.poi.hslf.model.TextRun;
11 import org.apache.poi.hslf.usermodel.RichTextRun;
12 import org.apache.poi.hslf.usermodel.SlideShow;
13 
14 import java.awt.Color;
15 import java.awt.Graphics2D;
16 import java.awt.geom.Rectangle2D;
17 import java.awt.image.BufferedImage;
18 
19     public class PptToJpg_poi {
20         public static void main(String[] args) {
21             // 读入PPT文件
22             File file = new File("C:\Users\Administrator\Desktop\pptToJpg\test8.pptx");
23             doPPTtoImage(file);
24         }
25         
26         public static boolean doPPTtoImage(File file) {
27             boolean isppt = checkFile(file);
28             if (!isppt) {
29                 System.out.println("The image you specify don't exit!");
30                 return false;
31             }
32             try {
33                 FileInputStream is = new FileInputStream(file);
34                 SlideShow ppt = new SlideShow(is);
35                 is.close();
36                 Dimension pgsize = ppt.getPageSize();
37                 org.apache.poi.hslf.model.Slide[] slide = ppt.getSlides();
38                 for (int i = 0; i < slide.length; i++) {
39                     TextRun[] truns = slide[i].getTextRuns();
40                     for (int k = 0; k < truns.length; k++) {
41                         RichTextRun[] rtruns = truns[k].getRichTextRuns();
42                         for (int l = 0; l < rtruns.length; l++) {
43                             rtruns[l].setFontIndex(1);
44                             rtruns[l].setFontName("宋体");
45                         }
46                     }
47                     BufferedImage img = new BufferedImage(pgsize.width, pgsize.height,
48                     BufferedImage.TYPE_INT_RGB);
49                     Graphics2D graphics = img.createGraphics();
50                     graphics.setPaint(Color.BLUE);
51                     graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));
52                     slide[i].draw(graphics);
53                     // 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
54                     File path = new File("C:/Users/Administrator/Desktop/pptToJpg/images");
55                     if (!path.exists()) {
56                         path.mkdir();
57                     }
58                     // 可测试多种图片格式
59 //                    FileOutputStream out = new FileOutputStream(path + "/" + (i + 1) + ".jpg");
60 //                    javax.imageio.ImageIO.write(img, "jpeg", out);
61                     FileOutputStream out = new FileOutputStream(path + "/" + (i + 1) + ".jpg");
62                     javax.imageio.ImageIO.write(img, "png", out);
63                     out.close();
64                 }
65                 System.out.println("success!!");
66                 return true;
67             } catch (FileNotFoundException e) {
68                 System.out.println(e);
69             } catch (IOException e) {
70                 
71             }
72             return false;
73         }
74         
75         // function 检查文件是否为PPT
76         public static boolean checkFile(File file) {
77             boolean isppt = false;
78             String filename = file.getName();
79             String suffixname = null;
80             if (filename != null && filename.indexOf(".") != -1) {
81                 suffixname = filename.substring(filename.lastIndexOf("."));
82                 if (suffixname.equals(".ppt") || suffixname.equals(".pptx")) {
83                     isppt = true;
84                 }
85                 return isppt;
86             } else {
87                 return isppt;
88             }
89         }
90         
91 }
亲测有效