Download large file >1GB using http protocol, java

Question

I have a web application for downloading files. Everything works fine except when I want to download a file more than 1GB .

This is my java code:

InputStream in = new FileInputStream(new File(folderFile.getAbsolutePath()));
                org.apache.commons.io.IOUtils.copy(in, response.getOutputStream());
                response.flushBuffer();
                in.close();

HTTP request :

$http({
            method:'get',
            url:this.apiDownloadFileUrl,
            responseType:'arraybuffer',
            cache: false
    });

and here is client side: I got data successfully on client, but when I make it Blob , if the data size was more than 500MB , nothing happened and it wasn't downloaded. Also, I can download 300MB ...

How can I check if it is a memory problem, or a server problem? ... When I download from gmail , I can download more than 1GB .

            .success(function(databack) {       
                            var file = new Blob([ databack ], {
                                type : 'application/csv'
                            });

                            var fileURL = window.URL.createObjectURL(file);
                            var a = document.createElement('a');
                            a.href = fileURL;
                            a.target = '_blank';
                            a.download = data;
                            document.body.appendChild(a);
                            a.click(); 

Answer 1

Have you tried using the copyLarge() methods from IOUtils? For the copy() methods the JavaDoc says:

"For large streams use the copyLarge(InputStream, OutputStream) method."