1. import java.io.File;
2. import java.io.FileOutputStream;
4. import de.innosystec.unrar.Archive;
5. import de.innosystec.unrar.rarfile.FileHeader;
7. public class UnRARTools {
9. public void unrar(File sourceRar, File destDir) throws Exception {
10. Archive archive = null;
11. FileOutputStream fos = null;
12. System.out.println("Starting...");
13. try {
14. archive = new Archive(sourceRar);
15. FileHeader fh = archive.nextFileHeader();
16. int count = 0;
17. File destFileName = null;
18. while (fh != null) {
19. System.out.println((++count) + ") " + fh.getFileNameString());
20. String compressFileName = fh.getFileNameString().trim();
21. destFileName = new File(destDir.getAbsolutePath() + "/" + compressFileName);
22. if (fh.isDirectory()) {
23. if (!destFileName.exists()) {
24. destFileName.mkdirs();
25. }
26. fh = archive.nextFileHeader();
27. continue;
28. }
29. if (!destFileName.getParentFile().exists()) {
30. destFileName.getParentFile().mkdirs();
31. }
32. fos = new FileOutputStream(destFileName);
33. archive.extractFile(fh, fos);
34. fos.close();
35. fos = null;
36. fh = archive.nextFileHeader();
37. }
39. archive.close();
40. archive = null;
41. System.out.println("Finished !");
42. } catch (Exception e) {
43. throw e;
44. } finally {
45. if (fos != null) {
46. try {
47. fos.close();
48. fos = null;
49. } catch (Exception e) {
50. //ignore
51. }
52. }
53. if (archive != null) {
54. try {
55. archive.close();
56. archive = null;
57. } catch (Exception e) {
58. //ignore
59. }
60. }
61. }
62. }
64. }

需要引用到以下兩個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

Java代碼中解壓RAR文件