How to Group date Column (to date ,month and year) in Excel Pivot Table using Java Apache POI?

问题

i am developing an application using Java apache POI that integrate with Excel to create Pivot table for some data in xslx file extension using XSSFWorkbook

and i have date column that contain date values like this "1/8/2016"

and i want to grouping this column in this pivot table into day , months and years like that using java Apache poi

so any help ?

来源：https://stackoverflow.com/questions/38747773/how-to-group-date-column-to-date-month-and-year-in-excel-pivot-table-using-ja