grails - OutOfMemoryError: Java heap space to upload 8 MB size file -

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i using grails 2.4.4 , trying upload .xlsx file using 'apache poi' plugin getting java heap size exception when file size around 8 mb.

my controller has following action , methods:-

def uploadform() {               string filename = "d:\\file.xlsx"        map excelsheetmap = process(filename) }  map process(string filename) {     excelbuilder excelbuilder = new excelbuilder(filename)       //getting java heap size exception here when trying create object      //of excelbuilder file       }

excelbuilder.groovy class file looks this

class excelbuilder {    workbook workbook    excelbuilder(string filename) {             new file(filename).withinputstream { ->          workbook = new xssfworkbook(is)       }    } }

i have tried using grails-excel-import plugin getting same exception.

can please suggest how import big size excel files in grails. in advance.

poi have high memory footprint. please see: http://poi.apache.org/spreadsheet/index.html

you can try sxssf. sxssf api-compatible streaming extension of xssf used when large spreadsheets have produced, , heap space limited.


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