我正在尝试在节点服务器中上传文件。
我将uploadedfileName 定义为全局变量。当时我上传文件后，我试图将文件名存储到这个变量中，我想用文件名在 getResponseWithPython 函数中获取全局变量
HTML：
<form id="upload" action="/upload" method="POST" enctype="multipart/form-data">
<input type="submit" />
</form>
我将uploadedfileName 定义为全局变量
JS：
** //declartion**
global.uploadedFileName = '';
//upload route
app.post('/upload', function(req, res) {
var busboy = new Busboy({
headers: req.headers
});
busboy.on('file', function(fieldname, file, filename, encoding, mimetype) {
console.log("Context path=" + __dirname);
var saveTo = path.join(__dirname + "/uploads", filename);
console.log('Uploading: ' + saveTo);
file.pipe(fs.createWriteStream(saveTo));
** //After I am uploading the file at that time I am trying to store file name in to this variable**
global.uploadedFileName = filename;
});
busboy.on('finish', function() {
console.log('Upload complete');
res.writeHead(200, {
'Connection': 'close'
});
res.end("That's all folks!");
});
return req.pipe(busboy);
});
function getResponseWithPython(prevMsg, cb) {
** // I want to get the global variable in this function with the file name**
console.log(" global.uploadedFileName::: " + global.uploadedFileName);
var pythonRes = '';
var formData = {
// Pass data via Streams
input_file: fs.createReadStream(__dirname + '/GoogleHeader.csv')
};
process.env.NODE_TLS_REJECT_UNAUTHORIZED = "0";
var req = request.post({
url: 'https://google.com:443/classification/',
formData: formData
}, function optionalCallback(err, httpResponse, body) {
if (err) {
return console.error('upload failed:', err);
}
console.log('Upload successful! Server responded with:', body);
pythonRes = body;
return cb(pythonRes);
});
};
注意：我在代码中提到了注释以了解代码流程和我的要求