Java代码中解压RAR文件

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1. import java.io.File;
2. import java.io.FileOutputStream;
3. import de.innosystec.unrar.Archive;
4. import de.innosystec.unrar.rarfile.FileHeader;
5. public class UnRARTools {
6. public void unrar(File sourceRar, File destDir) throws Exception {
7. Archive archive = null;
8. FileOutputStream fos = null;
9. System.out.println("Starting...");
10. try {
11. archive = new Archive(sourceRar);
12. FileHeader fh = archive.nextFileHeader();
13. int count = 0;
14. File destFileName = null;
15. while (fh != null) {
16. System.out.println((++count) + ") " + fh.getFileNameString());
17. String compressFileName = fh.getFileNameString().trim();
18. destFileName = new File(destDir.getAbsolutePath() + "/" + compressFileName);
19. if (fh.isDirectory()) {
20. if (!destFileName.exists()) {
21. destFileName.mkdirs();
22. }
23. fh = archive.nextFileHeader();
24. continue;
25. }
26. if (!destFileName.getParentFile().exists()) {
27. destFileName.getParentFile().mkdirs();
28. }
29. fos = new FileOutputStream(destFileName);
30. archive.extractFile(fh, fos);
31. fos.close();
32. fos = null;
33. fh = archive.nextFileHeader();
34. }
35. archive.close();
36. archive = null;
37. System.out.println("Finished !");
38. } catch (Exception e) {
39. throw e;
40. } finally {
41. if (fos != null) {
42. try {
43. fos.close();
44. fos = null;
45. } catch (Exception e) {
46. //ignore
47. }
48. }
49. if (archive != null) {
50. try {
51. archive.close();
52. archive = null;
53. } catch (Exception e) {
54. //ignore
55. }
56. }
57. }
58. }
59. }

需要引用到以下两个lib.

java-unrar-0.5.jar

http://www.java2s.com/Code/JarDownload/java/java-unrar-0.5.jar.zip

apache-commons-logging.jar

http://www.java2s.com/Code/JarDownload/apache-commons/apache-commons-logging.jar.zip