文件批量打包下载

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/qq_27843945/article/details/78812533

package zy_cms_web;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZipTest {

public static void main(String[] args) {
    // 需要压缩的文件--包括文件地址和文件名
    String[] path = {
            "E:\\DATA\\Log_File\\log1.txt",
            "E:\\DATA\\Log_File\\log2.txt" };
    // 要生成的压缩文件地址和文件名称
    String desPath = "C:\\Users\\dancer\\Desktop\\DownLoad.zip";
    File zipFile = new File(desPath);
    ZipOutputStream zipStream = null;
    FileInputStream zipSource = null;
    BufferedInputStream bufferStream = null;
    try {
        // 构造最终压缩包的输出流
        zipStream = new ZipOutputStream(new FileOutputStream(zipFile));
        for (int i = 0; i < path.length; i++) {
            File file = new File(path[i]);
            // 将需要压缩的文件格式化为输入流
            zipSource = new FileInputStream(file);
            // 压缩条目不是具体独立的文件，而是压缩包文件列表中的列表项，称为条目，就像索引一样
            ZipEntry zipEntry = new ZipEntry(file.getName());
            // 定位该压缩条目位置，开始写入文件到压缩包中
            zipStream.putNextEntry(zipEntry);
            // 输入缓冲流
            bufferStream = new BufferedInputStream(zipSource, 1024 * 10);
            int read = 0;
            // 创建读写缓冲区
            byte[] buf = new byte[1024 * 10];
            while ((read = bufferStream.read(buf, 0, 1024 * 10)) != -1) {
                zipStream.write(buf, 0, read);
            }
        }

    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        // 关闭流
        try {
            if (null != bufferStream)
                bufferStream.close();
            if (null != zipStream)
                zipStream.close();
            if (null != zipSource)
                zipSource.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

}