Java实现导出ZIP压缩包的方法

 import org.apache.commons.io.FileUtils; import org.apache.commons.io.IOUtils; import javax.servlet.http.HttpServletResponse; import java.io.*; import java.text.SimpleDateFormat; import java.util.Date; import java.util.zip.ZipEntry; import java.util.zip.ZipOutputStream; /** * @author wx * @date 2020/10/29 5:19 下午 */ public class FileZipUtil { private static void handlerFile(ZipOutputStream zip, File file, String dir) throws Exception { //如果当前的是文件夹，则进行进一步处理 if (file.isDirectory()) { //得到文件列表信息 File[] fileArray = file.listFiles(); if (fileArray == null) { return; } //将文件夹添加到下一级打包目录 zip.putNextEntry(new ZipEntry(dir + "/")); dir = dir.length() == 0 ? "" : dir + "/"; //递归将文件夹中的文件打包 for (File f : fileArray) { handlerFile(zip, f, dir + f.getName()); } } else { //当前的是文件，打包处理 //文件输入流 BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file)); ZipEntry entry = new ZipEntry(dir); zip.putNextEntry(entry); zip.write(FileUtils.readFileToByteArray(file)); IOUtils.closeQuietly(bis); zip.flush(); zip.closeEntry(); } } private static byte[] createZip(String sourceFilePath) throws Exception{ ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); ZipOutputStream zip = new ZipOutputStream(outputStream); //将目标文件打包成zip导出 File file = new File(sourceFilePath); handlerFile(zip, file,""); IOUtils.closeQuietly(zip); return outputStream.toByteArray(); } public static void exportZip(HttpServletResponse response, String sourceFilePath) { //文件名以时间戳作为前缀 SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss"); String filePrefix = sdf.format(new Date()); String downloadName = filePrefix + ".zip"; //将文件进行打包下载 try { OutputStream out = response.getOutputStream(); //接收压缩包字节 byte[] data = createZip(sourceFilePath); response.reset(); response.addHeader("Access-Control-Allow-Origin", "*"); response.setHeader("Access-Control-Expose-Headers", "*"); response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + downloadName); response.addHeader("Content-Length", "" + data.length); response.setContentType("application/octet-stream;charset=UTF-8"); IOUtils.write(data, out); out.flush(); out.close(); } catch (Exception e) { e.printStackTrace(); } } }

 @GetMapping("/exportFile") public Result exportFile(HttpServletResponse response) { //第二个参数为：要压缩文件的地址 FileZipUtil.exportZip(response, "/Users/Downloads"); }