Uploading file size check Grails

Question

I am facing a problem regarding file uploading in Grails. I would like to check the file size runtime after opening from the windows explorer and give me the error message if any condition fails.

I have a file uploading window where I have 3 file choose options. I would like to check each three files not to be more than 5MB. When I click on Browse button then my system explorer opens and I choose file.

Is there any way to check file size while selecting the file using javascript/ Ajax call? And if the file size is exceeds than the explorer show again to choose another file.

you can do this in HTML5 in a standard way, http://www.html5rocks.com/en/tutorials/file/dndfiles/ — aldrin, Nov 26 '12 at 10:11
You can refer to the similar question http://stackoverflow.com/questions/7497404/find-out-file-size-before-uploading-using-jquery-ajax — Benoit Wickramarachi, Nov 26 '12 at 14:44

coderLMN · Accepted Answer · 2012-12-13T05:18:06.277

About this issue, there is a plug-in called file-uploader to the rescue.

With this plug-in you can define some restrictions in config.groovy. Here is an example:

fileuploader {
    avatar {
        maxSize = 1024 * 256 //256 kbytes
        allowedExtensions = ["jpg","jpeg","gif","png"]
        path = "/tmp/avatar/"
    }
    docs {
        maxSize = 1000 * 1024 * 4 //4 mbytes
        allowedExtensions = ["doc", "docx", "pdf", "rtf"]
        path = "/tmp/docs/"
    }
}

Uploading file size check Grails

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