java - Can I reference a file from within a Spring Boot project? -

i writing spring boot program should populate xlsx template data , trying read template inside project. directory structure follows:

i trying access file using following code:

try {         inputstream fis = this.getclass().getresourceasstream("xlstemplates/billingreview.xlsx");         xssfworkbook billingreviewtemplate = new xssfworkbook(fis);     } catch (filenotfoundexception e) {         e.printstacktrace();     } 

unfortunately have yet find way read xlsx file inputstream. comes null. have pointers on how can reference file included in project?