我正在创建 csv 文件的 zip 文件,该文件在 Ubuntu、winrar、7zip 中正确打开,但在 winzip 中它给出错误“提取文件的大小与 zip 文件中记录的未压缩大小不匹配”
这是我的代码示例:
const meta = await pgService.getMeta(id);
res.header('Content-Disposition', `attachment; filename=${meta.filename}.zip`);
res.header('Content-Type', 'application/zip');
let zipper = archiver('zip');
zipper.pipe(res);
for (let x = 0; x < test.length; x++) {
let details = test[x];
const fields = await pgService.getFieldsByName(details.name);
let stream;
const csvfields = _.map(fields, (f) => { return { label: f, value: f }; });
const opts = { fields: csvfields, delimiter: ',', quote: '"' };
const transformOpts = { highWaterMark: 16384, encoding: 'utf-8' };
const json2csv = new Transform(opts, transformOpts);
stream = new streams.Transform({
transform(chunk, encoding, callback) {
let strChunk = chunk.toString().replace('{ "records" : ', '').replace(']}', ']');
this.push(new Buffer(strChunk, "utf-8"));
callback();
}
});
zipper.append(stream.pipe(json2csv), { name: `${details.name}.csv` });
stream.end();
if (fileMeta.filetype === 'csv') {
await new Promise((resolve, reject) => {
json2csv.on('end', () => {
resolve();
});
json2csv.on('error', (err) => reject(err));
});
}
}
await zipper.finalize();
如果我做错了什么或者我应该在其中添加一些东西,请告诉我
谢谢