常用文件的文件头(附JAVA测试类)

java

1. MIDI (mid),文件头:4D546864  

2. JPEG (jpg),文件头:FFD8FF

3. PNG (png),文件头:89504E47

4. GIF (gif),文件头:47494638

5. TIFF (tif),文件头:49492A00

6. Windows Bitmap (bmp),文件头:424D

7. CAD (dwg),文件头:41433130

8. Adobe Photoshop (psd),文件头:38425053

9. Rich Text Format (rtf),文件头:7B5C727466

10. XML (xml),文件头:3C3F786D6C

11. HTML (html),文件头:68746D6C3E

12. Email [thorough only] (eml),文件头:44656C69766572792D646174653A

13. Outlook Express (dbx),文件头:CFAD12FEC5FD746F

14. Outlook (pst),文件头:2142444E

15. MS Word/Excel (xls.or.doc),文件头:D0CF11E0

16. MS Access (mdb),文件头:5374616E64617264204A

17. WordPerfect (wpd),文件头:FF575043

18. Postscript (eps.or.ps),文件头:252150532D41646F6265

19. Adobe Acrobat (pdf),文件头:255044462D312E

20. Quicken (qdf),文件头:AC9EBD8F

21. Windows Password (pwl),文件头:E3828596

22. ZIP Archive (zip),文件头:504B0304

23. RAR Archive (rar),文件头:52617221

24. Wave (wav),文件头:57415645

25. AVI (avi),文件头:41564920

26. Real Audio (ram),文件头:2E7261FD

27. Real Media (rm),文件头:2E524D46

28. MPEG (mpg),文件头:000001BA

29. MPEG (mpg),文件头:000001B3

30. Quicktime (mov),文件头:6D6F6F76

31. Windows Media (asf),文件头:3026B2758E66CF11

  

package com.lr.downlaod;

import java.io.FileInputStream;

public class TestDownload {

public static String bytesToHexString(byte[] src) {

StringBuilder stringBuilder = new StringBuilder();

if (src == null || src.length <= 0) {

return null;

}

for (int i = 0; i < src.length; i++) {

int v = src[i] & 0xFF;

String hv = Integer.toHexString(v);

if (hv.length() < 2) {

stringBuilder.append(0);

}

stringBuilder.append(hv);

}

return stringBuilder.toString();

}

public static void main(String[] args) throws Exception {

FileInputStream is = new FileInputStream("G://lr//005.jpg");

byte[] b = new byte[3];

is.read(b, 0, b.length);

System.out.println(bytesToHexString(b));

}

}

  

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