我的代码如下所示：
bad callback: <function resultCallback at 0x7f1ac4ce6c08>
Traceback (most recent call last):
File "/opt/ros/indigo/lib/python2.7/dist-packages/rospy/topics.py", line 720, in _invoke_callback
cb(msg)
File "/root/catkin_ws/src/listen_project/src/node_evaluate.py", line 58, in resultCallback
jsonFile = json.loads(data.data, 'utf-8')
File "/usr/lib/python2.7/json/__init__.py", line 351, in loads
return cls(encoding=encoding, **kw).decode(s)
File "/usr/lib/python2.7/json/decoder.py", line 366, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/python2.7/json/decoder.py", line 384, in raw_decode
raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded
-------------------------------------
在这里，我可以成功上传多张图片，但我无法在上传时获取每个文件的名称。我怎样才能将它们放在const multer = require('multer');
let upload = multer();
let profile_image = '';
const storage = multer.diskStorage({
destination(req, file, callback) {
callback(null, './public/images')
},
filename(req, file, callback) {
profile_image = `${file.fieldname}-${Date.now()}${path.extname(file.originalname)}`;
callback(null, profile_image);
}
});
const userData = (req, res) => {
upload = multer({
limits: {
fileSize: 1000000,
files: 2
},
storage,
fileFilter(req, file, callback) {
const ext = path.extname(file.originalname);
if (ext !== '.png' && ext !== '.jpg' && ext !== '.gif' && ext !== '.jpeg') {
return callback(res.end('Only images are allowed'), null)
}
callback(null, true);
}
}).any();
upload(req, res, err => {
const foodtruck_name = req.body.foodtruck_name;
const foodtruck_tag = req.body.foodtruck_tag;
console.log(`foodname${foodtruck_name}`);
console.log("error" + err);
console.log("profile image" + profile_image);
if ((!foodtruck_name) || (foodtruck_name.trim() == '')) {
console.log("fooddddname " + foodtruck_name);
res.json({
status: '404',
message: 'Please enter valid foodtruck name'
});
} else {
const truck = new foodTruck();
truck.foodtruck_name = foodtruck_name,
truck.foodtruck_tag = foodtruck_tag,
awsUpload.fileUpload(profile_image).then((result) => {
truck.foodtruck_img = "https://myWebsite.com/" +
profile_image;
awsUpload.fileUpload(profile_image).then((result) => {
truck.foodtruck_logo = "https://myWebsite.com/" +
profile_image;
truck.save((err, trucSaved) => {
res.json({
status: '200',
message: 'Thanks for registering with quflip',
data: trucSaved
});
});
}).catch((errMsg) => {
res.json({
status: '400',
message: errMsg
})
});
}).catch((errMsg) => {
res.json({
status: '400',
message: errMsg
})
});
}
});
};
函数中？