pom.xml

      
          
       
        4.0.0
           
       
        demo
           
       
        spring
           
       
        1.0-SNAPSHOT
           
               
        
         9.20-2.00beta
                
        
         2.0.1
            
           
               
                    
         
          net.sf.sevenzipjbinding
                     
         
          sevenzipjbinding
                     
         
          ${sevenzipjbinding.version}
                 
                
                    
         
          net.sf.sevenzipjbinding
                     
         
          sevenzipjbinding-all-platforms
                     
         
          ${sevenzipjbinding.version}
                 
                
                    
         
          commons-io
                     
         
          commons-io
                     
         
          ${commons.io.version}
                 
            
       
      

 

package urar;import net.sf.sevenzipjbinding.*;import net.sf.sevenzipjbinding.impl.RandomAccessFileInStream;import net.sf.sevenzipjbinding.simple.ISimpleInArchive;import net.sf.sevenzipjbinding.simple.ISimpleInArchiveItem;import org.apache.commons.io.IOUtils;import java.io.File;import java.io.FileOutputStream;import java.io.RandomAccessFile;import java.util.Arrays;public class URaR {    /**     * @param file7zPath(7z文件路径)     * @param outPutPath(解压路径)     * @param passWord(文件密码.没有可随便写,或空)     * @return     * @throws Exception     * @Description (解压7z)     */    public static int un7z(String file7zPath, final String outPutPath, String passWord) throws Exception {        IInArchive archive;        RandomAccessFile randomAccessFile;        randomAccessFile = new RandomAccessFile(file7zPath, "r");        archive = SevenZip.openInArchive(null, new RandomAccessFileInStream(randomAccessFile), passWord);        int numberOfItems = archive.getNumberOfItems();        ISimpleInArchive simpleInArchive = archive.getSimpleInterface();        for (final ISimpleInArchiveItem item : simpleInArchive.getArchiveItems()) {            final int[] hash = new int[]{0};            if (!item.isFolder()) {                ExtractOperationResult result;                final long[] sizeArray = new long[1];                result = item.extractSlow(new ISequentialOutStream() {                    public int write(byte[] data) throws SevenZipException {                        try {                            //判断压缩包内的文件是否存在                            String parentFilePath = outPutPath + File.separator + item.getPath().substring(0, item.getPath().lastIndexOf(File.separator));                            if (!new File(parentFilePath).exists()) {                                new File(parentFilePath).mkdirs();                            }                            IOUtils.write(data, new FileOutputStream(new File(outPutPath + File.separator + item.getPath()), true));                        } catch (Exception e) {                            e.printStackTrace();                        }                        hash[0] ^= Arrays.hashCode(data); // Consume data                        sizeArray[0] += data.length;                        return data.length; // Return amount of consumed                    }                }, passWord);                if (result == ExtractOperationResult.OK) {                    System.out.println(String.format("%9X | %10s | %s", hash[0], sizeArray[0], item.getPath()));                } else {                    System.out.printf("Error extracting item: " + result);                }            }        }        archive.close();        randomAccessFile.close();        return numberOfItems;    }    public static void main(String[] args) throws Exception {        un7z("C:\\Users\\spring\\Desktop\\A_(3169).rar", "d:\\111", "SPzfq");    }}

 

 解压

http://sevenzipjbind.sourceforge.net/compression_snippets.html