Java将文件夹内所有文件及目录压缩为tar

男娘i 2023-05-29 05:30 31阅读 0赞

# 打包 #

*  ## 　思路 ##
    
     *  　准备输出流
        
         *  FileOutputStream
         *  BufferedOutputStream
         *  TarOutputStream
     *  　准备输入流　　
        
         *  FileInputStream
         *  BufferedInputStream
     *  　将文件打包为tar　　
 *  ## 　代码 ##
    
        import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
        import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;
        import org.apache.commons.io.FileUtils;
        import org.apache.commons.io.IOUtils;
        
        import java.io.*;
        
        /**
         * @author myvina@qq.com
         * @date 2019/11/4 0004 21:15
         */
        
        public class CompressUtils {
            public static void tarFiles(String destFileName, File... files) throws IOException {
                File destFile = new File(destFileName);
                if (destFile.exists()) {
                    FileUtils.forceDelete(destFile);
                }
        
                try (FileOutputStream fileOutputStream = new FileOutputStream(destFile);
                     BufferedOutputStream bufferedWriter = new BufferedOutputStream(fileOutputStream);
                     TarArchiveOutputStream tar = new TarArchiveOutputStream(bufferedWriter)) {
        
                    tar.setLongFileMode(TarArchiveOutputStream.LONGFILE_GNU);
        
                    for (File file : files) {
                        addTarArchiveEntryToTarArchiveOutputStream(file, tar, "");
                    }
                }
            }
        
            private static void addTarArchiveEntryToTarArchiveOutputStream(File file, TarArchiveOutputStream tar,
                                                                           String prefix) throws IOException {
                TarArchiveEntry entry = new TarArchiveEntry(file, prefix + File.separator + file.getName());
        
                if (file.isFile()) {
                    entry.setSize(file.length());
                    tar.putArchiveEntry(entry);
                    try (FileInputStream fileInputStream = new FileInputStream(file);
                         BufferedInputStream input = new BufferedInputStream(fileInputStream);) {
                        IOUtils.copy(input, tar);
                    }
                    tar.closeArchiveEntry();
                } else {
                    tar.putArchiveEntry(entry);
                    tar.closeArchiveEntry();
                    prefix += File.separator + file.getName();
                    File[] files = file.listFiles();
                    if (files != null) {
                        for (File f : files) {
                            addTarArchiveEntryToTarArchiveOutputStream(f, tar, prefix);
                        }
                    }
                }
            }
        
            public static void main(String[] args) throws IOException {
                String fileName = "C:\\Users\\Administrator\\Desktop\\article";
                String destFileName = fileName + File.separator + ".tar";
        
                tarFiles(destFileName, new File(fileName).listFiles());
            }
        }
    
    测试效果如下图：![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTcwNDQyOA_size_16_color_FFFFFF_t_70][]

编码文件留作下节解决

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTcwNDQyOA_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20191104224158300.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTcwNDQyOA==,size_16,color_FFFFFF,t_70