java批量解压文件夹下的所有压缩文件（.rar、.zip、.gz、.tar.gz）

// java批量解压文件夹下的所有压缩文件（.rar、.zip、.gz、.tar.gz）

新建工具类：

package com.mobile.utils;

import com.github.junrar.Archive;
import com.github.junrar.rarfile.FileHeader;
import org.apache.tools.tar.TarEntry;
import org.apache.tools.tar.TarInputStream;

import java.io.*;
import java.nio.charset.Charset;
import java.util.Enumeration;
import java.util.zip.GZIPInputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

/**
* @Description: UnzipUtil 工具类
* @Param:
* @return:
* @Author: mufeng
* @Date: 2018/8/20
*/
public class UnzipUtil {

    //解压.zip文件
    public static void unZip(String sourceFile, String outputDir) throws IOException {
        ZipFile zipFile = null;
        File file = new File(sourceFile);
        try {
            Charset CP866 = Charset.forName("CP866");  //specifying alternative (non UTF-8) charset
            zipFile =  new ZipFile(file, CP866);
            createDirectory(outputDir,null);//创建输出目录

            Enumeration<?> enums = zipFile.entries();
            while(enums.hasMoreElements()){

                ZipEntry entry = (ZipEntry) enums.nextElement();
                System.out.println("解压." +  entry.getName());

                if(entry.isDirectory()){//是目录
                    createDirectory(outputDir,entry.getName());//创建空目录
                }else{//是文件
                    File tmpFile = new File(outputDir + "/" + entry.getName());
                    createDirectory(tmpFile.getParent() + "/",null);//创建输出目录

                    InputStream in = null;
                    OutputStream out = null;
                    try{
                        in = zipFile.getInputStream(entry);;
                        out = new FileOutputStream(tmpFile);
                        int length = 0;

                        byte[] b = new byte[2048];
                        while((length = in.read(b)) != -1){
                            out.write(b, 0, length);
                        }

                    }catch(IOException ex){
                        throw ex;
                    }finally{
                        if(in!=null)
                            in.close();
                        if(out!=null)
                            out.close();
                    }
                }
            }

        } catch (IOException e) {
            throw new IOException("解压缩文件出现异常",e);
        } finally{
            try{
                if(zipFile != null){
                    zipFile.close();
                }
            }catch(IOException ex){
                throw new IOException("关闭zipFile出现异常",ex);
            }
        }
    }

    /**
     * 构建目录
     * @param outputDir
     * @param subDir
     */
    public static void createDirectory(String outputDir,String subDir){
        File file = new File(outputDir);
        if(!(subDir == null || subDir.trim().equals(""))){//子目录不为空
            file = new File(outputDir + "/" + subDir);
        }
        if(!file.exists()){
            if(!file.getParentFile().exists())
                file.getParentFile().mkdirs();
            file.mkdirs();
        }
    }

    //解压.rar文件
    public static void unRar(String sourceFile, String outputDir) throws Exception {
        Archive archive = null;
        FileOutputStream fos = null;
        File file = new File(sourceFile);
        try {
            archive = new Archive(file);
            FileHeader fh = archive.nextFileHeader();
            int count = 0;
            File destFileName = null;
            while (fh != null) {
                System.out.println((++count) + ") " + fh.getFileNameString());
                String compressFileName = fh.getFileNameString().trim();
                destFileName = new File(outputDir + "/" + compressFileName);
                if (fh.isDirectory()) {
                    if (!destFileName.exists()) {
                        destFileName.mkdirs();
                    }
                    fh = archive.nextFileHeader();
                    continue;
                }
                if (!destFileName.getParentFile().exists()) {
                    destFileName.getParentFile().mkdirs();
                }
                fos = new FileOutputStream(destFileName);
                archive.extractFile(fh, fos);
                fos.close();
                fos = null;
                fh = archive.nextFileHeader();
            }

            archive.close();
            archive = null;
        } catch (Exception e) {
            throw e;
        } finally {
            if (fos != null) {
                try {
                    fos.close();
                    fos = null;
                } catch (Exception e) {
                    //ignore
                }
            }
            if (archive != null) {
                try {
                    archive.close();
                    archive = null;
                } catch (Exception e) {
                    //ignore
                }
            }
        }
    }

    //解压.gz文件
    public static void unGz(String sourceFile, String outputDir) {
        String ouputfile = "";
        try {
            //建立gzip压缩文件输入流
            FileInputStream fin = new FileInputStream(sourceFile);
            //建立gzip解压工作流
            GZIPInputStream gzin = new GZIPInputStream(fin);
            //建立解压文件输出流
            /*ouputfile = sourceFile.substring(0,sourceFile.lastIndexOf('.'));
            ouputfile = ouputfile.substring(0,ouputfile.lastIndexOf('.'));*/
            File file = new File(sourceFile);
            String fileName = file.getName();
            outputDir = outputDir + "/" + fileName.substring(0, fileName.lastIndexOf('.'));
            FileOutputStream fout = new FileOutputStream(outputDir);

            int num;
            byte[] buf=new byte[1024];

            while ((num = gzin.read(buf,0,buf.length)) != -1)
            {
                fout.write(buf,0,num);
            }

            gzin.close();
            fout.close();
            fin.close();
        } catch (Exception ex){
            System.err.println(ex.toString());
        }
        return;
    }

    //解压.tar.gz文件
    public static void unTarGz(String sourceFile,String outputDir) throws IOException{
        TarInputStream tarIn = null;
        File file = new File(sourceFile);
        try{
            tarIn = new TarInputStream(new GZIPInputStream(
                    new BufferedInputStream(new FileInputStream(file))),
                    1024 * 2);

            createDirectory(outputDir,null);//创建输出目录

            TarEntry entry = null;
            while( (entry = tarIn.getNextEntry()) != null ){

                if(entry.isDirectory()){//是目录
                    entry.getName();
                    createDirectory(outputDir,entry.getName());//创建空目录
                }else{//是文件
                    File tmpFile = new File(outputDir + "/" + entry.getName());
                    createDirectory(tmpFile.getParent() + "/",null);//创建输出目录
                    OutputStream out = null;
                    try{
                        out = new FileOutputStream(tmpFile);
                        int length = 0;

                        byte[] b = new byte[2048];

                        while((length = tarIn.read(b)) != -1){
                            out.write(b, 0, length);
                        }

                    }catch(IOException ex){
                        throw ex;
                    }finally{

                        if(out!=null)
                            out.close();
                    }
                }
            }
        }catch(IOException ex){
            throw new IOException("解压归档文件出现异常",ex);
        } finally{
            try{
                if(tarIn != null){
                    tarIn.close();
                }
            }catch(IOException ex){
                throw new IOException("关闭tarFile出现异常",ex);
            }
        }
    }

    public static void main(String[] args) throws Exception {
        //测试解压文件（1. .zip   2. .rar   3. .gz   4. .tar.gz）
        String gzPath = "E:\\project11_LogAnalysis\\dc.weilianupup.com_2018_08_07_110000_120000.gz";
        String zipPath = "E:\\project11_LogAnalysis\\Shadowsocks-3.4.3.zip";
        String tarGzPath = "E:\\project11_LogAnalysis\\nginx-1.12.0.tar.gz";
        String rarPath = "E:\\project11_LogAnalysis\\test.rar";

        String outputDir = "E:\\project11_LogAnalysis\\test";

        // 传入参数（待解压的压缩文件路径, 解压文件到的目标文件夹）
//        unZip(zipPath, outputDir);
//        unGz(gzPath, outputDir);
//        unTarGz(tarGzPath, outputDir);
        unRar(rarPath, outputDir);

    }

}

调用工具类，实现批量解压：

package com.mobile.web.api;

import com.mobile.commons.JsonResp;
import com.mobile.model.LogInfo;
import com.mobile.service.LogInfoService;
import com.mobile.utils.UnzipUtil;
import org.apache.commons.lang3.StringUtils;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import java.io.*;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;

@RestController
@RequestMapping(value = "/test")
@Transactional
public class ImportController {
    Logger log = Logger.getLogger(this.getClass());

    @Autowired
    private LogInfoService logInfoService;

    @RequestMapping(value = "/unZipFiles", method = RequestMethod.POST)
    public JsonResp unZipFiles(@RequestBody Map map) throws Exception {
        log.debug("批量解压指定文件夹下的压缩文件文件至另一指定文件夹下");

        String sourceDir = map.get("sourceDir").toString();
        String outputDir = map.get("outputDir").toString();
        File file = new File(sourceDir);
        List<File> sourceFile = new ArrayList();
        listFiles(file, sourceFile);
        for (File file2 : sourceFile){
            String fileName = file2.getName();
            String fileType = fileName.substring(fileName.lastIndexOf("."));
            if (".gz".equals(fileType)){
                fileName = fileName.substring(0, fileName.lastIndexOf("."));
                String fileType2 = fileName.substring(fileName.lastIndexOf("."));
                if (".tar".equals(fileType2)){
                    fileType = ".tar.gz";
                }
            }
            String fileSource = file2.getAbsolutePath();
            switch(fileType){
                case ".gz" : UnzipUtil.unGz(fileSource, outputDir);  break;       //解压压缩文件
                case ".zip" : UnzipUtil.unZip(fileSource, outputDir); break;
                case ".tar.gz" : UnzipUtil.unTarGz(fileSource, outputDir); break;
                case ".rar" : UnzipUtil.unRar(fileSource, outputDir); break;        //解压rar文件时，暂时有问题
                default: log.debug(fileSource + ": 此文件无法解压");
            }
//            file2.delete();           //解压完后，是否删除
        }
        return JsonResp.ok();
    }

    //循环出文件夹下的所有压缩文件
    public static void listFiles(File file, List<File> sourceFile){

        if(file.isDirectory()){
            File[] files = file.listFiles();
            for (File file1 : files){
                if(file1.isDirectory()){    //若是目录，则递归该目录下的文件
                    listFiles(file1, sourceFile);
                }else if (file1.isFile()){
                    sourceFile.add(file1);  //若是文件，则保存
                }
            }
        }

    }

使用到的maven依赖：

　　　　  <dependency>
            <groupId>org.apache.ant</groupId>
            <artifactId>ant</artifactId>
            <version>1.8.1</version>
        </dependency>

        <dependency>
            <groupId>com.github.junrar</groupId>
            <artifactId>junrar</artifactId>
            <version>0.7</version>
        </dependency>

参考： https://www.cnblogs.com/scw2901/p/4379143.html

　　     https://blog.csdn.net/u012100371/article/details/75029961