我正在尝试在服务器上压缩多个文件,并在用户请求时下载它。我正在使用adm-zip压缩文件。
文件添加得很好并且被压缩。 zip.writeZip('')完美压缩文件并将其保存到本地服务器。我只是无法下载它们。无论哪种方式,我认为如果可以直接通过缓冲区发送zip会更好。
router.get(
"/download-zip/:season_id/:club_id",
passport.authenticate("jwt", { session: false }),
(req, res) => {
FileSubmission.find({
season: req.params.season_id,
club: req.params.club_id
}).then(files => {
const zip = new AdmZip();
files.forEach(file => {
// add local file
zip.addLocalFile(`uploads/club-uploads/${file.club}/${file.name}`);
});
res.download(zip.toBuffer(), "asd.zip");
});
}
);
在前面,我正在使用动作和js文件下载库进行反应
// Download ALL FILES by season ID and club ID
import fileDownload from "js-file-download";
export const downloadAllFiles = (season_id, club_id) => dispatch => {
axios
.get(`/api/files/download-zip/${season_id}/${club_id}`)
.then(response => {
fileDownload(response.data, `All Files- ${club_id}.zip`);
})
.catch(err => {
console.log(err);
dispatch({ type: GET_ERRORS, payload: err.response.data });
});
};
[好吧,不知道为什么我被拒绝了,但是这是我如何创建临时存档,下载并删除它的答案。
这里是后端
// Create a ZIP of files uploaded by a club
router.get(
"/download-zip/",
(req, res) => {
zip.addLocalFile(/*ADD THE FILES TO ZIP*/);
zip.writeZip(
`temp/zips/temp-file.zip`,
err => {
if (err) {
console.log(err);
}
res.download(
`uploads/club-zips/test-file.zip`,
function(err) {
if (!err) {
//delete file after it's been downloaded
fs.unlinkSync(
`uploads/club-zips/test-file-${req.params.club_id}.zip`
);
}
}
);
}
);
});
}
);
这是我在前面使用的。正如我所说的,我使用了名为js-file-download的包来下载blob
export const downloadAllFiles = () => dispatch => {
axios
.get(`/api/files/download-zip/`, {
responseType: "arraybuffer"
})
.then(response => {
fileDownload(response.data, `all-files.zip`);
})
.catch(err => {
console.log(err);
});
};