在报告中的<jasperReport>标记上更改语言标记

Change the language tag in your report on the <jasperReport> tag

<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="subreport" language="groovy" pageWidth="555" pageHeight="842" columnWidth="555" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="6afeba62-b470-4dfb-a8fb-42e2226b906d">

language ="groovy"

到

language ="java"