Java代码中解压RAR文件

Posted 2020-09-23 请叫我码农怪蜀黍

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1. import java.io.File;  
2. import java.io.FileOutputStream;  
3.   
4. import de.innosystec.unrar.Archive;  
5. import de.innosystec.unrar.rarfile.FileHeader;  
6.   
7. public class UnRARTools {  
8.   
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.             }  
38.   
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.     }  
63.   
64. }  

 

 

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