Java代码中解压RAR文件

1. [java]  view plain copy

    
   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

转载于:https://www.cnblogs.com/yuanjun1/p/3929971.html