Java实现把文件及文件夹压缩成zip

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
/**
 * @author Nemo
 * @version 1.0
 * @date 2019/11/5
 */
public class ZipUtils {
  private static final int BUFFER_SIZE = 2 * 1024;
  /**
   * 压缩成ZIP 方法1
   * @param sourceFile 压缩文件夹路径
   * @param out  压缩文件输出流
   * @param KeepDirStructure 是否保留原来的目录结构,true:保留目录结构;
   *             false:所有文件跑到压缩包根目录下(注意：不保留目录结构可能会出现同名文件,会压缩失败)
   * @throws RuntimeException 压缩失败会抛出运行时异常
   */
  public static void toZip(File sourceFile, OutputStream out, boolean KeepDirStructure)
      throws RuntimeException{
    ZipOutputStream zos = null ;
    try {
      zos = new ZipOutputStream(out);
      compress(sourceFile,zos,sourceFile.getName(),KeepDirStructure);
    } catch (Exception e) {
      throw new RuntimeException("zip error from ZipUtils",e);
    }finally{
      if(zos != null){
        try {
          zos.close();
        } catch (IOException e) {
          e.printStackTrace();
        }
      }
    }
  }
  /**
   * 压缩成ZIP 方法2
   * @param srcFiles 需要压缩的文件列表
   * @param out      压缩文件输出流
   * @throws RuntimeException 压缩失败会抛出运行时异常
   */
  public static void toZip(List srcFiles , OutputStream out)throws RuntimeException {
    long start = System.currentTimeMillis();
    ZipOutputStream zos = null ;
    try {
      zos = new ZipOutputStream(out);
      for (File srcFile : srcFiles) {
        byte[] buf = new byte[BUFFER_SIZE];
        zos.putNextEntry(new ZipEntry(srcFile.getName()));
        int len;
        FileInputStream in = new FileInputStream(srcFile);
        while ((len = in.read(buf)) != -1){
          zos.write(buf, 0, len);
        }
        zos.closeEntry();
        in.close();
      }
      long end = System.currentTimeMillis();
      System.out.println("压缩完成，耗时：" + (end - start) +" ms");
    } catch (Exception e) {
      throw new RuntimeException("zip error from ZipUtils",e);
    }finally{
      if(zos != null){
        try {
          zos.close();
        } catch (IOException e) {
          e.printStackTrace();
        }
      }
    }
  }
  /**
   * 递归压缩方法
   * @param sourceFile 源文件
   * @param zos    zip输出流
   * @param name    压缩后的名称
   * @param KeepDirStructure 是否保留原来的目录结构,true:保留目录结构;
   *             false:所有文件跑到压缩包根目录下(注意：不保留目录结构可能会出现同名文件,会压缩失败)
   * @throws Exception
   */
  private static void compress(File sourceFile, ZipOutputStream zos, String name,
                 boolean KeepDirStructure) throws Exception{
    byte[] buf = new byte[BUFFER_SIZE];
    if(sourceFile.isFile()){
      // 向zip输出流中添加一个zip实体，构造器中name为zip实体的文件的名字
      zos.putNextEntry(new ZipEntry(name));
      // copy文件到zip输出流中
      int len;
      FileInputStream in = new FileInputStream(sourceFile);
      while ((len = in.read(buf)) != -1){
        zos.write(buf, 0, len);
      }
      // Complete the entry
      zos.closeEntry();
      in.close();
    } else {
      File[] listFiles = sourceFile.listFiles();
      if(listFiles == null || listFiles.length == 0){
        // 需要保留原来的文件结构时,需要对空文件夹进行处理
        if(KeepDirStructure){
          // 空文件夹的处理
          zos.putNextEntry(new ZipEntry(name + "/"));
          // 没有文件，不需要文件的copy
          zos.closeEntry();
        }
      }else {
        for (File file : listFiles) {
          // 判断是否需要保留原来的文件结构
          if (KeepDirStructure) {
            // 注意：file.getName()前面需要带上父文件夹的名字加一斜杠,
            // 不然最后压缩包中就不能保留原来的文件结构,即：所有文件都跑到压缩包根目录下了
            compress(file, zos, name + "/" + file.getName(),KeepDirStructure);
          } else {
            compress(file, zos, file.getName(),KeepDirStructure);
          }
        }
      }
    }
  }
  public static void main(String[] args) throws Exception {
    /** 测试压缩方法1 */
    FileOutputStream fos1 = new FileOutputStream(new File("c:/mytest01.zip"));
    ZipUtils.toZip(new File("D:/log"), fos1,true);
    /** 测试压缩方法2 */
    List fileList = new ArrayList<>();
    fileList.add(new File("D:/Java/jdk1.7.0_45_64bit/bin/jar.exe"));
    fileList.add(new File("D:/Java/jdk1.7.0_45_64bit/bin/java.exe"));
    FileOutputStream fos2 = new FileOutputStream(new File("c:/mytest02.zip"));
    ZipUtils.toZip(fileList, fos2);
  }
}

import org.apache.commons.io.FileUtils;
import java.io.*;

/**
   * 图片打包下载
   * @author: wangzhouchao
   */
  @ApiImplicitParams({
      @ApiImplicitParam(name = "id", value = "申请人id", required = true, dataType = "Long", paramType = "query"),
  })
  @ApiOperation(value = "图片打包下载", notes = "图片打包下载")
  @RequestMapping(value = "/downloadPictureList", method = RequestMethod.GET)
  public void downloadPictureList(TProposerDataVO tProposerDataVO) {

    long readyStart = System.currentTimeMillis();

    // ************* 1. 获取到存在数据库中的图片的url *************
    PictureDownloadVO picturesById = tOrderService.getPicturesByProposerDataId(tProposerDataVO.getId());

    // 获取当前类的所在项目路径
    File file = null;
    try {
      file = new File(ResourceUtils.getURL("classpath:").getPath());
    } catch (FileNotFoundException e) {
      throw new RuntimeException("获取根目录失败，无法获取文件目录！");
    }
    if(!file.exists()) {
      file = new File("");
    }
    String absolutePath = file.getAbsolutePath();


    // 要打包的文件夹列表
    String order_number = picturesById.getOrder_number();
    String country_name = picturesById.getCountry_name();
    String visa_type = picturesById.getVisa_type();
    String dirName = order_number + country_name + visa_type;

    // ************* 2. 创建要压缩的文件夹 *************
    // 根据订单号+国家名称+签证类型创建文件夹
    File dirOfOrder = new File(absolutePath, dirName);
    if(!dirOfOrder.exists()) {
      dirOfOrder.mkdirs();
    }

    ZipOutputStream zos = null;
    OutputStream out = null;

    long readyEnd = System.currentTimeMillis();
    System.out.println("准备完成，耗时：" + (readyEnd - readyStart) + " ms");
    try {

      long downStart = System.currentTimeMillis();


      System.out.println("开始下载");

      TProposerDataVO vo = picturesById.getProposerDataVO();

      // ************* 3. 根据获取到的图片的url，把图片按照想要的文件夹目录进行下载 *************
      // 根据申请人姓名创建文件夹
      File proposerFile = new File(dirOfOrder, vo.getReal_name());
      if (!proposerFile.exists()) {
        proposerFile.mkdirs();
      }
      // 下载申请人照片
      if (StringUtil.checkNotNull(vo.getPhoto_url())) {
        System.out.println("开始下载申请人照片");
        WordExportUtil.downloadHttpUrl(DOMAIN + vo.getPhoto_url(), proposerFile.toString(), File.separator + "photo.jpg");
      }
      // 下载申请人护照首页
      if (StringUtil.checkNotNull(vo.getPassport_home_page_url())) {
        System.out.println("开始下载申请人护照照片");
        WordExportUtil.downloadHttpUrl(DOMAIN + vo.getPassport_home_page_url(), proposerFile.toString(), File.separator + "passport.jpg");
      }
      // 下载申请人户口本照片
      if (StringUtil.checkNotNull(vo.getResidence_booklet_url())) {
        System.out.println("开始下载申请人户口本照片");
        String[] booklets = vo.getResidence_booklet_url().split(",");
        // 创建户口本照片文件夹
        File bookletsFile = new File(proposerFile, "hukouben");
        if (!bookletsFile.exists()) {
          bookletsFile.mkdirs();
        }
        for (int k = 0; k