huimv.manage/huimv-manage/src/main/java/com/huimv/manage/util/ZipUtils.java

package com.huimv.manage.util;

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

/**
 * @Project : huimv.shiwan
 * @Package : com.huimv.biosafety.uface.controller
 * @Description : TODO
 * @Version : 1.0
 * @Author : ZhuoNing
 * @Create : 2020-12-25
 **/
public class ZipUtils {

    public static void downloadZip(OutputStream outputStream, File file){
        BufferedInputStream bufferedInputStream = null;
        ZipOutputStream zipOutputStream = null;
        try {
            zipOutputStream = new ZipOutputStream(outputStream);
//            for (File file : fileList) {
                ZipEntry zipEntry = new ZipEntry(file.getName());
                zipOutputStream.putNextEntry(zipEntry);
                byte[] buf = new byte[1024];
                int len;
                FileInputStream in = new FileInputStream(file);
                while ((len = in.read(buf)) != -1) {
                    zipOutputStream.write(buf, 0, len);
                    zipOutputStream.flush();
                }
//            }
            zipOutputStream.flush();
            zipOutputStream.close();

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            // 关闭流
            try {
                if (bufferedInputStream != null) {
                    bufferedInputStream.close();
                }
                if (zipOutputStream != null ) {
                    zipOutputStream.close();
                }
                if (outputStream != null) {
                    outputStream.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

    }
}