Simple html file upload with parameters

The html code is as follows

<form id="upload-form" action="http://localhost:9090/docs/uploadFile" method="post" enctype="multipart/form-data" >
　　　<input type="file" id="file" name="file" /> <br />
		<input type="string" id="id" name="id" /> <br />
　　　<input type="submit" value="Upload" />
</form>

http://localhost:9090/docs/uploadFile represents the url
id that sends the request to the background. The id is the parameter that sends the upload request to the background. It can be multiple