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jasperreports大Excel文件

[英]jasperreports large excel file

 原文  2016-06-05 13:39:04  2   1    java/ jasper-reports/ export-to-excel

问题描述

我有一些使用JasperReports库导出的报告。 除了excel文件（xls）都很好。 例如，当我尝试将包含751行的精确报告导出为ex​​cel文件时，没有问题，并且可以正确下载excel文件，但是当它超过800行时，它将显示一些不相关的字符。 上面提到的行大小仅适用于此报告，而其他报告的行数限制为不同的数字。 在将库从版本2.3升级到6.1.0之前，不存在此问题，现在我尝试了6.2.2。

这是我创建Excel文件的方式： 

    JasperPrint jasperPrint;
    try {
        jasperPrint = getReportPrint(request, baseForm, "excel");
    } catch (ReportNoDataException e) {
        return handleNoData(mapping, request, e);
    }

    try {
        JRXlsExporter jrXlsExporter = new JRXlsExporter();
        try {
            jrXlsExporter.setExporterInput(new SimpleExporterInput(jasperPrint));
            jrXlsExporter.setExporterOutput(new SimpleOutputStreamExporterOutput(response.getOutputStream()));

            SimpleXlsReportConfiguration configuration = new SimpleXlsReportConfiguration();
            configuration.setIgnoreCellBorder(true);
            configuration.setWrapText(true);
            configuration.setWhitePageBackground(false);
            configuration.setRemoveEmptySpaceBetweenColumns(true);
            configuration.setRemoveEmptySpaceBetweenRows(true);
            configuration.setAutoFitPageHeight(true);
            configuration.setDetectCellType(true);
            configuration.setSheetDirection(RunDirectionEnum.RTL);

            jrXlsExporter.setConfiguration(configuration);
            jrXlsExporter.exportReport();
        } catch (IOException e) {
            log.error("IOException occured" + e);
            e.printStackTrace();
        } catch (JRException e) {
            log.error("JRException occured while exporting for xls format", e);
            e.printStackTrace();
        }
    } catch (Exception e) {
        throw e;
    }
    String filename="report";
    response.setHeader("Content-disposition","attachment; filename=\""+filename+".xls\"");
    putSearchForm(request, baseForm);
    return null;

这是报告代码： 

<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="mtdTankhahEdaratMojoodiExcelReport" pageWidth="595" pageHeight="60" columnWidth="595" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" scriptletClass="report.webapp.tlmReportScriptlet" uuid="4354b1d9-63b2-4236-b190-ac5b2fb0f464">
<property name="com.jaspersoft.studio.unit." value="pixel"/>
<queryString>
    <![CDATA[]]>
</queryString>
<field name="no" class="java.lang.String">
    <fieldDescription><![CDATA[no]]></fieldDescription>
</field>
<field name="baseDate" class="java.lang.String">
    <fieldDescription><![CDATA[baseDate]]></fieldDescription>
</field>
<field name="pardakht" class="java.lang.Double">
    <fieldDescription><![CDATA[pardakht]]></fieldDescription>
</field>
<field name="daryaft" class="java.lang.Double">
    <fieldDescription><![CDATA[daryaft]]></fieldDescription>
</field>
<field name="zinaf" class="java.lang.String">
    <fieldDescription><![CDATA[zinaf]]></fieldDescription>
</field>
<field name="sanadType" class="java.lang.String">
    <fieldDescription><![CDATA[sanadType]]></fieldDescription>
</field>
<variable name="mande" class="java.lang.Double">
    <variableExpression><![CDATA[($F{pardakht}==null || $F{daryaft}==null) ? new Double(0) :
(new Double(($F{daryaft}.doubleValue()-$F{pardakht}.doubleValue())+
$V{mande}.doubleValue()))]]></variableExpression>
    <initialValueExpression><![CDATA[new Double("0")]]></initialValueExpression>
</variable>
<title>
    <band height="30" splitType="Stretch">
        <staticText>
            <reportElement key="staticText-4" x="0" y="0" width="30" height="30" uuid="36cd81f4-073b-4023-b5b8-716d43a4d377">
                <property name="com.jaspersoft.studio.unit.y" value="pixel"/>
                <property name="com.jaspersoft.studio.unit.x" value="pixel"/>
            </reportElement>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12" isBold="true"/>
            </textElement>
            <text><![CDATA[ردیف]]></text>
        </staticText>
        <staticText>
            <reportElement key="staticText-8" x="275" y="0" width="80" height="30" uuid="0827df09-4353-424e-94fa-dd8cc7d5c6ac">
                <property name="com.jaspersoft.studio.unit.width" value="pixel"/>
            </reportElement>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12" isBold="true"/>
            </textElement>
            <text><![CDATA[نوع سند]]></text>
        </staticText>
        <staticText>
            <reportElement key="staticText-9" x="190" y="0" width="85" height="30" uuid="13490ca9-0ba0-4315-b5a0-745ce020f9e1">
                <property name="com.jaspersoft.studio.unit.width" value="pixel"/>
            </reportElement>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12" isBold="true"/>
            </textElement>
            <text><![CDATA[تاریخ سند]]></text>
        </staticText>
        <staticText>
            <reportElement key="staticText-12" x="110" y="0" width="80" height="30" uuid="544625a2-83d3-405d-a117-c0fa6820813a">
                <property name="com.jaspersoft.studio.unit.width" value="pixel"/>
            </reportElement>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12" isBold="true"/>
            </textElement>
            <text><![CDATA[شماره سند]]></text>
        </staticText>
        <staticText>
            <reportElement key="staticText-14" x="355" y="0" width="80" height="30" uuid="fc76869a-b6b1-4223-8ab3-26a870a23e08">
                <property name="com.jaspersoft.studio.unit.width" value="pixel"/>
            </reportElement>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12" isBold="true"/>
            </textElement>
            <text><![CDATA[دریافت]]></text>
        </staticText>
        <staticText>
            <reportElement key="staticText-14" x="515" y="0" width="80" height="30" uuid="f53ebc1b-eaaa-487b-bd23-ee62a1534caa"/>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12" isBold="true"/>
            </textElement>
            <text><![CDATA[مانده]]></text>
        </staticText>
        <staticText>
            <reportElement key="staticText-14" x="435" y="0" width="80" height="30" uuid="aa3bda32-9b4c-4e53-927a-f6750256fb51"/>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12" isBold="true"/>
            </textElement>
            <text><![CDATA[پرداخت]]></text>
        </staticText>
        <staticText>
            <reportElement key="staticText-12" x="30" y="0" width="80" height="30" uuid="b8c6b055-1b5e-4923-954b-a4eed5bab543">
                <property name="com.jaspersoft.studio.unit.width" value="pixel"/>
            </reportElement>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12" isBold="true"/>
            </textElement>
            <text><![CDATA[ذینفع]]></text>
        </staticText>
    </band>
</title>
<detail>
    <band height="30" splitType="Stretch">
        <property name="com.jaspersoft.studio.unit.height" value="pixel"/>
        <textField isStretchWithOverflow="true" isBlankWhenNull="true">
            <reportElement key="textField-1" stretchType="RelativeToTallestObject" x="0" y="0" width="30" height="30" isPrintWhenDetailOverflows="true" uuid="263cfc8f-7812-4797-843c-42fe00045f98">
                <property name="com.jaspersoft.studio.unit.width" value="pixel"/>
            </reportElement>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12"/>
            </textElement>
            <textFieldExpression><![CDATA[$V{REPORT_COUNT}]]></textFieldExpression>
        </textField>
        <textField isStretchWithOverflow="true" isBlankWhenNull="true">
            <reportElement key="textField-5" stretchType="RelativeToTallestObject" x="355" y="0" width="80" height="30" isPrintWhenDetailOverflows="true" uuid="baaa6584-8b9d-4523-a698-a68d065b8892"/>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12"/>
            </textElement>
            <textFieldExpression><![CDATA[($F{daryaft} == null)? new Double("0"): $F{daryaft}]]></textFieldExpression>
        </textField>
        <textField isStretchWithOverflow="true" isBlankWhenNull="true">
            <reportElement key="textField-6" stretchType="RelativeToTallestObject" x="190" y="0" width="85" height="30" isPrintWhenDetailOverflows="true" uuid="073a34ff-2e81-4265-a580-beb8fb293ae0"/>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12"/>
            </textElement>
            <textFieldExpression><![CDATA[($F{baseDate} == null)? "---" : $F{baseDate}]]></textFieldExpression>
        </textField>
        <textField isStretchWithOverflow="true" isBlankWhenNull="true">
            <reportElement key="textField-9" stretchType="RelativeToTallestObject" x="110" y="0" width="80" height="30" isPrintWhenDetailOverflows="true" uuid="e1c072ca-5d06-453c-a739-c797507a92b0"/>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12"/>
            </textElement>
            <textFieldExpression><![CDATA[($F{no} == null)? "---" : $F{no}]]></textFieldExpression>
        </textField>
        <textField isStretchWithOverflow="true" isBlankWhenNull="true">
            <reportElement key="textField-11" stretchType="RelativeToTallestObject" x="435" y="0" width="80" height="30" isPrintWhenDetailOverflows="true" uuid="a5778bf8-71da-4c84-82b8-219f27f04065"/>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12"/>
            </textElement>
            <textFieldExpression><![CDATA[($F{pardakht} == null)? new Double("0"): $F{pardakht}]]></textFieldExpression>
        </textField>
        <textField isStretchWithOverflow="true" isBlankWhenNull="true">
            <reportElement key="textField-11" stretchType="RelativeToTallestObject" x="515" y="0" width="80" height="30" isPrintWhenDetailOverflows="true" uuid="a762bdfa-4d3f-4975-b70d-d25875d15af8"/>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12"/>
            </textElement>
            <textFieldExpression><![CDATA[($V{mande} == null)? new Double("0"): $V{mande}]]></textFieldExpression>
        </textField>
        <textField isStretchWithOverflow="true" isBlankWhenNull="true">
            <reportElement key="textField-5" stretchType="RelativeToTallestObject" x="275" y="0" width="80" height="30" isPrintWhenDetailOverflows="true" uuid="d8c12462-e172-47eb-a301-905e356465b2"/>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12"/>
            </textElement>
            <textFieldExpression><![CDATA[($F{sanadType} == null)? "---": $F{sanadType}]]></textFieldExpression>
        </textField>
        <textField isStretchWithOverflow="true" isBlankWhenNull="true">
            <reportElement key="textField-9" stretchType="RelativeToTallestObject" x="30" y="0" width="80" height="30" isPrintWhenDetailOverflows="true" uuid="7eae6f3a-173e-479d-90d7-38b6c5a5b99f"/>
            <box>
                <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
                <bottomPen lineWidth="1.0" lineStyle="Solid" lineColor="#000000"/>
                <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
            </box>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="bnazanin" size="12"/>
            </textElement>
            <textFieldExpression><![CDATA[($F{zinaf} == null)? "---" : $F{zinaf}]]></textFieldExpression>
        </textField>
    </band>
</detail>
</jasperReport>

这是该报告的屏幕截图： 报告结果

有什么想法可以解决这个问题吗？

1 个解决方案

解决方案1
 3 已采纳  2016-06-06 06:53:29

您正在查看的输出是Excel输出。 如果您在文本编辑器中将其打开，这就是Excel文件的样子（我随机抽取了XLS文件，并在Notepad ++中将其打开）：

在此处输入图片说明

这意味着您的响应不是将内容作为Excel文件提供，而是作为直接下载提供，直接在浏览器中显示。

尝试在响应中添加其他参数（ 从此处开始并设置为适合Java），以便更加明确： 

response.setHeader("Content-Type:   application/vnd.ms-excel; charset=utf-8");
response.setHeader("Expires: 0");
response.setHeader("Cache-Control: must-revalidate, post-check=0, pre-check=0");
response.setHeader("Cache-Control: private");

编辑

如果较大的文件发生这种情况，请看一下描述相同问题的答案 。 一般来说，应该先发送响应头，然后再生成报告文件。

简而言之：您应该首先将所有内容首先写入标头（我怀疑您确实对response更高的要求），然后尝试生成文件。 这样浏览器就会得到结果，看到一个应用程序文件将要下载。 否则，据我所知， response头是在文件生成后设置的-对于浏览器来说，等待Content-Type可能太长了。

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