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I have a upload form like this (form.gsp):
<html>
<head>
<title>Upload Image</title>
<meta name="layout" content="main" />
</head>
<body>
<g:uploadForm action ="upload">
Photo: <input name="photos" type="file" />
<g:submitButton name="upload" value="Upload" />
</g:uploadForm>
</body>
</html>
I expect the user to upload any picture, and when he clicks on the upload button, I need some way to get the image in my controller action and passed it to the view :
def upload = {
byte[] photo = params.photos
//other code goes here . . . .
}
This throws an error :
Cannot cast object 'org.springframework.web.multipart.commons.CommonsMultipartFile@1b40272' with class 'org.springframework.web.multipart.commons.CommonsMultipartFile' to class 'byte'
Note that I don't want these photos to be saved on my DB. Actually once the upload action is done, I will process with that image and show the output in upload view itself. So it will be good if I have a solution for it.
Thanks in advance.
437
def reqFile = request.getFile("photos")
InputStream file = reqFile.inputStream
byte[] bytes = file.bytes
Edit: changed the getBytes to bytes as suggested and as is a better groovy way :)
57
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