- 创建DownLoadUrlStream承载数据
import lombok.Data;import java.io.InputStream;@Datapublic class DownLoadUrlStream { //文件地址 比如/123/234/1.txt private String url; //文件流 private InputStream stream;}- 创建工具类，进行zip包压缩
import com.valid.util.view.DownLoadUrlStream;import com.valid.util.view.DownLoadUrlString;import org.springframework.stereotype.Component;import javax.servlet.http.HttpServletResponse;import java.io.IOException;import java.io.InputStream;import java.net.URLEncoder;import java.util.HashSet;import java.util.List;import java.util.Set;import java.util.zip.ZipEntry;import java.util.zip.ZipOutputStream;@Componentpublic class DownloadUtils { public void downloadFolder(List<DownLoadUrlStream> downLoadUrlStreams,String zipName, HttpServletResponse response) throws IOException { response.setContentType("application/octet-stream"); response.setHeader("Content-Disposition", "attachment; filename=\"" + URLEncoder.encode(zipName,"UTF-8") + "\""); Set<String> paths = new HashSet<>(); // 用于记录已经添加到压缩文件中的目录 try { ZipOutputStream zipOut = new ZipOutputStream(response.getOutputStream()); for (DownLoadUrlStream file : downLoadUrlStreams) { String virtualPath = file.getUrl().substring(1); String[] pathArray = virtualPath.split("/"); //构建文件的目录结构 StringBuilder sb = new StringBuilder(); for (int i = 0; i < pathArray.length - 1; i++) { sb.append(pathArray[i]).append("/"); String folderPath = sb.toString(); if (!paths.contains(folderPath)) { // 如果该目录还未被添加到压缩文件中，则添加目录 ZipEntry folderEntry = new ZipEntry(folderPath); zipOut.putNextEntry(folderEntry); zipOut.closeEntry(); paths.add(folderPath); // 将新添加的目录记录到集合中 } } ZipEntry entry = new ZipEntry(virtualPath); zipOut.putNextEntry(entry); //将文件流写入文件中 InputStream inputStream = file.getStream(); byte[] buffer = new byte[1024]; int len; while ((len = inputStream.read(buffer)) > 0) { zipOut.write(buffer, 0, len); } inputStream.close(); zipOut.closeEntry(); } zipOut.flush(); zipOut.close(); } catch (IOException e) { e.printStackTrace(); } } } - 封装数据，调用方法即可
来源地址：https://blog.csdn.net/qq_42900469/article/details/130982230
