常用文件的文件头(附JAVA测试类)
1. MIDI (mid),文件头:4D5468642. 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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