总结一下，关于Java下载zip文件并导出的方法，浏览器导出。
String downloadName = "下载文件名称.zip";
downloadName = BrowserCharCodeUtils.browserCharCodeFun(request, downloadName);//下载文件名乱码问题解决
//将文件进行打包下载
try {
OutputStream out = response.getOutputStream();
byte[] data = createZip("/fileStorage/download");//服务器存储地址
response.reset();
response.setHeader("Content-Disposition","attachment;fileName="+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();
}
//获取下载zip文件流
public byte[] createZip(String srcSource) 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(srcSource);
a(zip,file,"");
IOUtils.closeQuietly(zip);
return outputStream.toByteArray();
}
public void a(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[] files = file.listFiles();
//将文件夹添加到下一级打包目录
zip.putNextEntry(new ZipEntry(dir + "/"));
dir = dir.length() == 0 ? "" : dir + "/";
//循环将文件夹中的文件打包
for (int i = 0; i < files.length; i++) {
a(zip, files[i], dir + files[i].getName()); //递归处理
}
} 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();
}
}
