jsp如何实现word文档转换成tif格式

james_yan

我听说虚拟机可以实现，便不知道怎么样实现，兄弟急，哪位大G帮帮忙

bbcode

我收藏过一个文章里面讲到用JMF把PDF转换为PNG 有使用TIF 你看看能不能帮助你

1. 
   
2. Here is some code that does the trick..
   
3. 
   
4. import java.awt.Graphics2D;
   
5. import java.awt.RenderingHints;
   
6. 
   
7. import java.awt.image.BufferedImage;
   
8. import java.awt.image.RenderedImage;
   
9. import java.io.ByteArrayInputStream;
   
10. import java.io.ByteArrayOutputStream;
    
11. import java.io.File;
    
12. import java.util.Vector;
    
13. 
    
14. import javax.imageio.ImageIO;
    
15. import javax.servlet.http.HttpServlet;
    
16. import javax.servlet.http.HttpServletResponse;
    
17. 
    
18. import com.sun.media.jai.codec.ImageCodec;
    
19. import com.sun.media.jai.codec.ImageDecoder;
    
20. import com.sun.media.jai.codec.ImageEncoder;
    
21. import com.sun.media.jai.codec.PNGEncodeParam;
    
22. import com.sun.media.jai.codec.SeekableStream;
    
23. import com.sun.media.jai.codec.TIFFDecodeParam;
    
24. import com.sun.media.jai.codec.TIFFDirectory;
    
25. 
    
26. import multivalent.Behavior;
    
27. import multivalent.Context;
    
28. import multivalent.Document;
    
29. import multivalent.Node;
    
30. import multivalent.std.adaptor.pdf.PDF;
    
31. 
    
32. public class PDFToPNG extends HttpServlet {
    
33. 
    
34. /**
    
35. *
    
36. */
    
37. private static final long serialVersionUID = 1L;
    
38. 
    
39. public byte[] ConvertToPngImage(byte[] tiffRawData, HttpServletResponse res)
    
40. throws Exception {
    
41. Vector pngs = new Vector();
    
42. // set stream to the tiff url
    
43. SeekableStream tiffStream = SeekableStream.wrapInputStream(
    
44. new ByteArrayInputStream(tiffRawData), true);
    
45. 
    
46. // how many pages in one tiff
    
47. int pageNumber = TIFFDirectory.getNumDirectories(tiffStream);
    
48. 
    
49. TIFFDecodeParam decodeParam = new TIFFDecodeParam();
    
50. decodeParam.setDecodePaletteAsShorts(true);
    
51. 
    
52. ImageDecoder tiffDecoder = ImageCodec.createImageDecoder("tiff",
    
53. tiffStream, decodeParam);
    
54. 
    
55. // for (int p = 0; p < pageNumber; p ++) {
    
56. // render the current page
    
57. RenderedImage tiffPage = tiffDecoder.decodeAsRenderedImage();
    
58. 
    
59. PNGEncodeParam png = PNGEncodeParam.getDefaultEncodeParam(tiffPage);
    
60. 
    
61. // The png stream is outputted to a file. Change the directory
    
62. // accordingly.
    
63. ByteArrayOutputStream baos = new ByteArrayOutputStream();
    
64. 
    
65. // Gets a PNG encoder.
    
66. ImageEncoder pngEncoder = ImageCodec.createImageEncoder("PNG", baos,png);
    
67. 
    
68. // Encodes the RenderedImage object.
    
69. pngEncoder.encode(tiffPage);
    
70. 
    
71. byte[] content = baos.toByteArray();
    
72. baos.close();
    
73. return content;
    
74. }
    
75. 
    
76. public static void main(String args[]) {
    
77. File outfile = new File("c:
    
78. file.png");
    
79. 
    
80. try {
    
81. 
    
82. PDF pdf = (PDF) Behavior.getInstance("AdobePDF", "AdobePDF", null,
    
83. null, null);
    
84. File file = new File("c:
    
85. somepdf.pdf");
    
86. pdf.setInput(file);
    
87. 
    
88. Document doc = new Document("doc", null, null);
    
89. pdf.parse(doc);
    
90. doc.clear();
    
91. 
    
92. doc.putAttr(Document.ATTR_PAGE, Integer.toString(1));
    
93. pdf.parse(doc);
    
94. 
    
95. Node top = doc.childAt(0);
    
96. doc.formatBeforeAfter(200, 200, null);
    
97. int w = top.bbox.width;
    
98. int h = top.bbox.height;
    
99. BufferedImage img = new BufferedImage(w, h,
    
100. BufferedImage.TYPE_INT_RGB);
     
101. Graphics2D g = img.createGraphics();
     
102. g.setClip(0, 0, w, h);
     
103. 
     
104. g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
     
105. RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
     
106. g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
     
107. RenderingHints.VALUE_ANTIALIAS_ON);
     
108. g.setRenderingHint(RenderingHints.KEY_RENDERING,
     
109. RenderingHints.VALUE_RENDER_QUALITY);
     
110. Context cx = doc.getStyleSheet().getContext(g, null);
     
111. top.paintBeforeAfter(g.getClipBounds(), cx);
     
112. 
     
113. ImageIO.write(img, "png", outfile);
     
114. doc.removeAllChildren();
     
115. cx.reset();
     
116. g.dispose();
     
117. 
     
118. pdf.getReader().close();
     
119. outfile = null;
     
120. 
     
121. doc = null;
     
122. } catch (Exception e) {
     
123. 
     
124. }
     
125. }
     
126. }
     

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bbcode

原文 http://forum.java.sun.com/thread ... p;messageID=9460087