Jasper Report表溢出

Question

我正在使用Jasper报告。我发送到页面的数据不会像下面的图像一样填入jrTable。我怎么能伸展它？提前谢谢。

    <componentElement>
            <reportElement key="table 5" style="table 5" stretchType="RelativeToBandHeight" x="3" y="323" width="546" height="302" isPrintWhenDetailOverflows="true"/>
            <jr:table xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd">
                <datasetRun subDataset="bufferList">
                    <datasetParameter name="REPORT_DATA_SOURCE">
                        <datasetParameterExpression><![CDATA[$P{bufferList}]]></datasetParameterExpression>
                    </datasetParameter>
                </datasetRun>
                <jr:column width="90">
                    <jr:tableHeader style="table 5_TH" height="30"/>
                    <jr:columnHeader style="table 5_CH" height="30">
                        <staticText>
                            <reportElement x="0" y="0" width="90" height="30"/>
                            <text><![CDATA[buffer_name]]></text>
                        </staticText>
                    </jr:columnHeader>
                     ..........