main report:
1 add variable
<variable name="Variable_rule" class="java.lang.String" resetType="None">
<variableExpression><![CDATA[$F{rule name}]]></variableExpression>
<initialValueExpression><![CDATA[$F{rule name}]]></initialValueExpression>
</variable>
2 add subreportParameter
<subreport>
<reportElement x="-20" y="0" width="480" height="100" uuid="65fbc18f-3989-4701-ba4a-da8222d0a54d">
<property name="com.jaspersoft.studio.unit.x" value="pixel"/>
<property name="com.jaspersoft.studio.unit.y" value="pixel"/>
</reportElement>
<subreportParameter name="P_ruleName">
<subreportParameterExpression><![CDATA[$V{Variable_rule}]]></subreportParameterExpression>
</subreportParameter>
<dataSourceExpression><![CDATA[$P{REPORT_DATA_SOURCE}]]></dataSourceExpression>
<subreportExpression><![CDATA["src/table/jasper/Blank_A4_1.jasper"]]></subreportExpression>
</subreport>
subreport:
1 add parameter
<parameter name="P_ruleName" class="java.lang.String"/>
2 filter data
<filterExpression><![CDATA[$V{Variable_rule}.equals($P{P_ruleName})]]></filterExpression>