I am trying to upload data from an app to a spring backend service. Things to upload are a DataModel containing data of the object to create and several images linked to the data. Therefore I am using this method signature:
@RequestMapping(method = RequestMethod.POST)
@ResponseBody
public Survey createSurvey(@RequestBody SurveyPostHelper helper, @RequestParam(value="file", required = true) MultipartFile[] images)
I tried to play with the annotations, but either I get a blank images array or my helper is empty. How would you solve this?
Thanks in advance.
I found out, that this method signature could do the job:
@ResponseBody
public Survey createSurvey(@RequestPart(required=true) SurveyPostHelper helper, @RequestPart(value="file", required = true) final MultipartFile[] images)
Important in my case was to set the MimeType in the client app. The files MimeType should be image/jpg
and the SurveyPostHelper
s to application/json
to allow Spring to parse the json and bind it to my Object.
see an example of the client code working for me images is the list of files I want to save
var formData = new FormData();
for (var i = 0; i < images.length ; i++) {
formData.append('images', images[i]);
}
formData.append('adData', new Blob([JSON.stringify(adData)], {
type: "application/json"
}));
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