java实现将多个文件用gzip压缩成tar.gz格式

╰半橙微兮° 2022-05-09 02:16 409阅读 0赞

以下是一个工具类：

import java.io.*;
    import java.util.ArrayList;
    import java.util.List;
    import java.util.zip.GZIPOutputStream;
    import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
    import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;
    import org.apache.commons.compress.utils.IOUtils;
    
    public class TargzUtil {
    
    	/**
    	 *
    	 * @Title: pack
    	 * @Description: 将一组文件打成tar包
    	 * @param sources
    	 *            要打包的原文件数组
    	 * @param target
    	 *            打包后的文件
    	 * @return File 返回打包后的文件
    	 * @throws
    	 */
    	public static File pack(List<File> sources, File target) throws IOException {
    		FileOutputStream out = null;
    		try {
    			out = new FileOutputStream(target);
    		} catch (FileNotFoundException e1) {
    			e1.printStackTrace();
    		}
    		TarArchiveOutputStream os = new TarArchiveOutputStream(out);
    		for (File file : sources) {
    			InputStream inputStream = null;
    			try {
    				os.putArchiveEntry(new TarArchiveEntry(file,file.getName()));//打包的时候只是包含文件，不带路径
    				//os.putArchiveEntry(new TarArchiveEntry(file));  //打包的时候带路径
    				inputStream = new FileInputStream(file);
    				IOUtils.copy(inputStream, os);
    				os.closeArchiveEntry();
    
    			} catch (FileNotFoundException e) {
    				e.printStackTrace();
    			} catch (IOException e) {
    				e.printStackTrace();
    			}
    			if(inputStream!=null){
    				inputStream.close();
    			}
    		}
    		if (os != null) {
    			try {
    				os.flush();
    				os.close();
    				System.out.println("打包后文件为：" + target);
    			} catch (IOException e) {
    				e.printStackTrace();
    			}
    		}
    
    		return target;
    	}
    
    
    	/**
    	 * tar打包压缩
    	 * @param source  需要压缩的文件
    	 * @param FilePath  压缩后的文件全文件名(.tar)
    	 * @return  返回压缩后的文件
    	 */
    	public static File compress(File source,String FilePath) {
    		File target = new File(FilePath);
    		FileInputStream in = null;
    		GZIPOutputStream out = null;
    		try {
    			in = new FileInputStream(source);
    			out = new GZIPOutputStream(new FileOutputStream(target));
    			byte[] array = new byte[1024];
    			int number;
    			while ((number = in.read(array, 0, array.length)) != -1) {
    				out.write(array, 0, number);
    			}
    		} catch (FileNotFoundException e) {
    			e.printStackTrace();
    			return null;
    		} catch (IOException e) {
    			e.printStackTrace();
    			return null;
    		} finally {
    			if (in != null) {
    				try {
    					in.close();
    					source.delete();//解压成功后，删除tar文件
    				} catch (IOException e) {
    					e.printStackTrace();
    					return null;
    				}
    			}
    			if (out != null) {
    				try {
    					out.close();
    					System.out.println("打包后文件为：" + target);
    				} catch (IOException e) {
    					e.printStackTrace();
    					return null;
    				}
    			}
    		}
    		return target;
    	}
    
    	public static void main(String[] args) {
    		try {
    			List<File> testFile = new ArrayList<>();
    			String target = "D:/data/file/ceshi.tar";
    			testFile.add(new File("D:/data/file/mock3.log"));
    			testFile.add(new File("D:/data/file/mock4.log"));
    			testFile.add(new File("D:/data/file/mock5.log"));
    			//testFile.add(new File("app.properties"));
    			compress(pack(testFile, new File(target)),"D:/data/file/ceshi.tar.gz");
    		} catch (Exception e) {
    			e.printStackTrace();
    		}
     }
    
    }

org.apache.commons.compress

需要引入包的pom:

<dependency>
       <groupId>org.apache.commons</groupId>
       <artifactId>commons-compress</artifactId>
       <version>1.9</version>
    </dependency>