java压缩文件夹工具类

import org.apache.commons.io.IOUtils;

import java.io.*;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

/**
 * 压缩包工具类
 *
 * @author xuyt
 * @date 2020/12/31 10:32
 */
public class ZipUtil {

    public static void compressZipfile(String sourceDir,String outputFile) throws IOException {
        ZipOutputStream zipFile = new ZipOutputStream(new FileOutputStream(outputFile));
        compressDirectoryToZipfile(sourceDir,sourceDir,zipFile);
        IOUtils.closeQuietly(zipFile);
    }

    private static void compressDirectoryToZipfile(String rootDir,String sourceDir,ZipOutputStream out) throws IOException {
        for (File file : new File(sourceDir).listFiles()) {

            if (file.isDirectory()) {
                //如果是一个空文件夹
                if (file.listFiles().length == 0) {
                    ZipEntry zipEntry = new ZipEntry(sourceDir.replace(rootDir, "") + file.getName() + "/");

                    out.putNextEntry(zipEntry);
                    out.closeEntry();
                } else {
                    compressDirectoryToZipfile(rootDir, sourceDir + file.getName() + File.separator, out);
                }
            } else {
                FileInputStream in = new FileInputStream(sourceDir + file.getName());
                try {
                    ZipEntry entry = new ZipEntry(sourceDir.replace(rootDir, "") + file.getName());
                    out.putNextEntry(entry);
                    IOUtils.copy(in, out);
                }catch (IOException e){
                    e.printStackTrace();
                }finally {
                    IOUtils.closeQuietly(in);
                }
            }
        }
    }
    public static void main(String[] args) throws IOException {

        ZipUtil.compressZipfile("D:\\工作文档\\培训管理系统-培训统计模块\\f15cf5d6182b43848550df9d58581f45\\",
                "D:\\工作文档\\培训管理系统-培训统计模块\\培训班材料.zip");

    }
}