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如何填补一个ArrayList报告？

本文介绍了如何填补一个ArrayList报告？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我试图从的ArrayList 填写我的碧玉报告，所以我创建的字符串参数这一点。然后，我有这样的方法：

 公共无效formatPurchaseOrder（字符串订单编号，字符串reportdir）{
        ArrayList的所有= PurchaseOrders.listPurchaseOrderDetails（订单编号）;
        INT大小= all.size（）;
        的ClassLoader类加载器=的getClass（）getClassLoader（）。
        JREmptyDataSource数据源=新JREmptyDataSource（）;
        地图参数=新的HashMap（）;
        的for（int i = 0; I＆LT;大小;我++）{
            ArrayList的1 =（ArrayList的）all.get（I）
            parameters.put（PRODUCT_NAME（字符串）one.get（2））;
            parameters.put（PRODUCT_UNITS（字符串）one.get（5））;
            parameters.put（UNIT_COST（字符串）one.get（4））;
            parameters.put（TOTAL_COST（字符串）one.get（6））;
        }
        尝试{
            SimpleDateFormat的SDF =新的SimpleDateFormat（dd_MMM_YYYY）;
            InputStream的URL = classLoader.getResourceAsStream（COM /原稿/股票/ JRXML / porder.jrxml）;
            JasperReport的JasperReport的= JasperCompileManager.compileReport（URL）;
            reportDestination = reportdir +/ Statement_+订单编号+_+ sdf.format（新的Date（））+.PDF
            JasperPrint jasperPrint = JasperFillManager.fillReport（JasperReport的，参数，数据源）;
            JasperExportManager.exportReportToPdfFile（jasperPrint，reportDestination）;
        }赶上（例外ASD）{
            的System.out.println（asd.getMessage（））;
        }
    }

我的报告仅具有数据的一行时，阵列具有多个记录。难道我要覆盖其它值还是什么我做错了？

我的JRXML：

＆LT;？XML版本=1.0编码=UTF-8＆GT？;
＆LT;的JasperReport的xmlns =htt​​p://jasperreports.sourceforge.net/jasperreports的xmlns：XSI =htt​​p://www.w3.org/2001/XMLSchema-instanceXSI：=的schemaLocationHTTP：// JasperReports的。 sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsdNAME =porderLANGUAGE =常规页宽=595pageHeight =842columnWidth时=555LEFTMARGIN =20 rightMargin =20TOPMARGIN =20bottomMargin =20UUID =05f8fa07-cc11-4951-91d0-927112a15a81＆GT;
    ＆LT;属性名=ireport.zoom值=1.0/＆GT;
    ＆LT;属性名=ireport.x值=0/＆GT;
    ＆LT;属性名=ireport.y值=0/＆GT;
    ＆LT;参数名称=PRODUCT_NAME级=java.lang.String中/＆GT;
    ＆LT;参数名称=PRODUCT_UNITS级=java.lang.String中/＆GT;
    ＆LT;参数名称=UNIT_COST级=java.lang.String中/＆GT;
    ＆LT;参数名称=TOTAL_COST级=java.lang.String中/＆GT;
    ＆LT;背景与GT;
        ＆LT;乐队的splittype =拉伸/＆GT;
    ＆LT; /背景＆GT;
    ＆LT;标题＆GT;
        ＆LT;带高度=8的s​​plittype =拉伸/＆GT;
    ＆LT; /标题＆GT;
    ＆LT; pageHeader＆GT;
        ＆LT;带高度=35的splittype =拉伸＆GT;
            ＆LT;＆STATICTEXT GT;
                ＆LT; reportElement X =177Y =15WIDTH =100HEIGHT =20UUID =41147e24-6284-475c-b00c-96e980c79bbc/＆GT;
                ＆LT;文本＆GT;＆LT;！[CDATA [采购订单]＆GT;＆LT; /文字和GT;
            ＆LT; / STATICTEXT＆GT;
        ＆LT; /乐队＆GT;
    ＆LT; / pageHeader＆GT;
    ＆LT;＆的columnHeader GT;
        ＆LT;带高度=61的splittype =拉伸＆GT;
            ＆LT;＆STATICTEXT GT;
                ＆LT; reportElement X =15Y =41WIDTH =100HEIGHT =20UUID =9dfd8b36-bc9b-49de-b9a9-b6d769d412d6/＆GT;
                ＆LT;文本＆GT;＆LT;！[CDATA [产品名称]]＆GT;＆LT; /文字和GT;
            ＆LT; / STATICTEXT＆GT;
            ＆LT;＆STATICTEXT GT;
                ＆LT; reportElement X =136Y =41WIDTH =100HEIGHT =20UUID =0eb87f16-3251-4736-9c7a-8ec69652da8c/＆GT;
                ＆LT;文本＆GT;＆LT;！[CDATA [产品单元]＆GT;＆LT; /文字和GT;
            ＆LT; / STATICTEXT＆GT;
            ＆LT;＆STATICTEXT GT;
                ＆LT; reportElement X =242Y =41WIDTH =100HEIGHT =20UUID =8a5f0b4c-b468-4791-9a5c-7b99431bef00/＆GT;
                ＆LT;文本＆GT;＆LT;！[CDATA [单位成本]＆GT;＆LT; /文字和GT;
            ＆LT; / STATICTEXT＆GT;
            ＆LT;＆STATICTEXT GT;
                ＆LT; reportElement X =353Y =41WIDTH =100HEIGHT =20UUID =7aadd922-f446-4e8b-B16B-fa61545936d6/＆GT;
                ＆LT;文本＆GT;＆LT;！[CDATA [总成本]＆GT;＆LT; /文字和GT;
            ＆LT; / STATICTEXT＆GT;
        ＆LT; /乐队＆GT;
    ＆LT; /＆的columnHeader GT;
    ＆LT;详情＆GT;
        ＆LT;带高度=23的splittype =拉伸＆GT;
            ＆LT;＆文本框GT;
                ＆所述; reportElement X =14Y =3宽度=112HEIGHT =20的uuid =faddcb7e-d047-4a35-9296-dd8a7d384e57/＆GT;
                ＆LT; textFieldEx pression＆GT;＆LT;！[CDATA [$ P {PRODUCT_NAME}]＆GT;＆LT; / textFieldEx pression＆GT;
            ＆LT; /文本框＆GT;
            ＆LT;＆文本框GT;
                ＆LT; reportElement X =138Y =3WIDTH =100HEIGHT =20UUID =ee974e76-1698-4d41-95ca-e3254e6d8537/＆GT;
                ＆LT; textFieldEx pression＆GT;＆LT;！[CDATA [$ P {} PRODUCT_UNITS]＆GT;＆LT; / textFieldEx pression＆GT;
            ＆LT; /文本框＆GT;
            ＆LT;＆文本框GT;
                ＆LT; reportElement X =243Y =3WIDTH =100HEIGHT =20UUID =7de5517f-5baa-489b-a4ad-b152df7523fb/＆GT;
                ＆LT; textFieldEx pression＆GT;＆LT;！[CDATA [$ P {} UNIT_COST]＆GT;＆LT; / textFieldEx pression＆GT;
            ＆LT; /文本框＆GT;
            ＆LT;＆文本框GT;
                ＆LT; reportElement X =355Y =3WIDTH =100HEIGHT =20UUID =02a9f9a9-a81b-4f71-9e38-85b0ebdd0937/＆GT;
                ＆LT; textFieldEx pression＆GT;＆LT;！[CDATA [$ P {} TOTAL_COST]＆GT;＆LT; / textFieldEx pression＆GT;
            ＆LT; /文本框＆GT;
        ＆LT; /乐队＆GT;
    ＆LT; /详情＆GT;
    ＆LT; columnFooter＆GT;
        ＆LT;带高度=45的splittype =拉伸/＆GT;
    ＆LT; / columnFooter＆GT;
    ＆LT; pageFooter＆GT;
        ＆LT;带高度=54的splittype =拉伸/＆GT;
    ＆LT; / pageFooter＆GT;
    ＆LT;总结＆gt;
        ＆LT;带高度=42的splittype =拉伸/＆GT;
    ＆LT; /总结＆gt;
＆LT; / JasperReport的＆GT;


解决方案

您有关于什么是参数什么有些困惑的是数据源。

您回路

 的for（int i = 0; I＆LT;大小;我++）{
   ArrayList的1 =（ArrayList的）all.get（I）
   parameters.put（PRODUCT_NAME（字符串）one.get（2））;
}

已经没有意义，您将设置参数 PRODUCT_NAME 来最后的值（它的一个地图＆LT;弦乐，对象＆gt; ，在一个键就只能有一个值），此外当试图通过一个数据源，但只传递参数（查询，为路径图像ECC你不应该用这个。）

为了从您列表℃的数据源，列表与LT;弦乐＆GT;＆GT; 您可以使用，但你需要将其转换为列表与LT;对象[]＆GT; 。然而，我将它转换为列表与LT; MyBean＆GT; 和使用 JRBeanCollectionDataSource 。在 MyBean 类是类似于

 公共类MyBean {
    私人字符串产品名称;
    ...所有其他领域
    私人双TOTALCOST;
    ... getter和setter
}

，然后在JRXML定义这些为字段的S代替参数 

 ＆LT;字段名称=产品名称级=java.lang.String中/＆GT;
＆LT;字段名=TOTALCOST级=java.lang.Double中的/＆GT;

因此​​，它会在你的细节带迭代没有参数的数据源

I am attempting to fill my jasper report from an ArrayList, so I have created String parameters for this. Then I have this method:

public void formatPurchaseOrder(String orderNumber, String reportdir) {
        ArrayList all = PurchaseOrders.listPurchaseOrderDetails(orderNumber);
        int size = all.size();
        ClassLoader classLoader = getClass().getClassLoader();
        JREmptyDataSource datasource = new JREmptyDataSource();
        Map parameters  = new HashMap();
        for (int i = 0; i < size; i++) {
            ArrayList one = (ArrayList) all.get(i);
            parameters.put("PRODUCT_NAME", (String) one.get(2));
            parameters.put("PRODUCT_UNITS", (String) one.get(5));
            parameters.put("UNIT_COST", (String) one.get(4));
            parameters.put("TOTAL_COST", (String) one.get(6));
        }
        try {
            SimpleDateFormat sdf = new SimpleDateFormat("dd_MMM_YYYY");
            InputStream url = classLoader.getResourceAsStream("com/orig/stock/jrxml/porder.jrxml");
            JasperReport jasperReport = JasperCompileManager.compileReport(url);
            reportDestination = reportdir + "/Statement_" + orderNumber + "_" + sdf.format(new Date()) + ".pdf";
            JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, datasource);
            JasperExportManager.exportReportToPdfFile(jasperPrint, reportDestination);
        } catch (Exception asd) {
            System.out.println(asd.getMessage());
        }
    }

My report is only having one row of data when the array has several records. Could I be overwriting the other values or what am I doing wrong?

My jrxml:

<?xml version="1.0" encoding="UTF-8"?>
<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="porder" language="groovy" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="05f8fa07-cc11-4951-91d0-927112a15a81">
    <property name="ireport.zoom" value="1.0"/>
    <property name="ireport.x" value="0"/>
    <property name="ireport.y" value="0"/>
    <parameter name="PRODUCT_NAME" class="java.lang.String"/>
    <parameter name="PRODUCT_UNITS" class="java.lang.String"/>
    <parameter name="UNIT_COST" class="java.lang.String"/>
    <parameter name="TOTAL_COST" class="java.lang.String"/>
    <background>
        <band splitType="Stretch"/>
    </background>
    <title>
        <band height="8" splitType="Stretch"/>
    </title>
    <pageHeader>
        <band height="35" splitType="Stretch">
            <staticText>
                <reportElement x="177" y="15" width="100" height="20" uuid="41147e24-6284-475c-b00c-96e980c79bbc"/>
                <text><![CDATA[PURCHASE ORDER]]></text>
            </staticText>
        </band>
    </pageHeader>
    <columnHeader>
        <band height="61" splitType="Stretch">
            <staticText>
                <reportElement x="15" y="41" width="100" height="20" uuid="9dfd8b36-bc9b-49de-b9a9-b6d769d412d6"/>
                <text><![CDATA[PRODUCT NAME]]></text>
            </staticText>
            <staticText>
                <reportElement x="136" y="41" width="100" height="20" uuid="0eb87f16-3251-4736-9c7a-8ec69652da8c"/>
                <text><![CDATA[PRODUCT UNITS]]></text>
            </staticText>
            <staticText>
                <reportElement x="242" y="41" width="100" height="20" uuid="8a5f0b4c-b468-4791-9a5c-7b99431bef00"/>
                <text><![CDATA[UNIT COST]]></text>
            </staticText>
            <staticText>
                <reportElement x="353" y="41" width="100" height="20" uuid="7aadd922-f446-4e8b-b16b-fa61545936d6"/>
                <text><![CDATA[TOTAL COST]]></text>
            </staticText>
        </band>
    </columnHeader>
    <detail>
        <band height="23" splitType="Stretch">
            <textField>
                <reportElement x="14" y="3" width="112" height="20" uuid="faddcb7e-d047-4a35-9296-dd8a7d384e57"/>
                <textFieldExpression><![CDATA[$P{PRODUCT_NAME}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="138" y="3" width="100" height="20" uuid="ee974e76-1698-4d41-95ca-e3254e6d8537"/>
                <textFieldExpression><![CDATA[$P{PRODUCT_UNITS}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="243" y="3" width="100" height="20" uuid="7de5517f-5baa-489b-a4ad-b152df7523fb"/>
                <textFieldExpression><![CDATA[$P{UNIT_COST}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="355" y="3" width="100" height="20" uuid="02a9f9a9-a81b-4f71-9e38-85b0ebdd0937"/>
                <textFieldExpression><![CDATA[$P{TOTAL_COST}]]></textFieldExpression>
            </textField>
        </band>
    </detail>
    <columnFooter>
        <band height="45" splitType="Stretch"/>
    </columnFooter>
    <pageFooter>
        <band height="54" splitType="Stretch"/>
    </pageFooter>
    <summary>
        <band height="42" splitType="Stretch"/>
    </summary>
</jasperReport>
解决方案

You have some confusion about what is the parameters and what is the datasource.

Your loop

for (int i = 0; i < size; i++) {
   ArrayList one = (ArrayList) all.get(i);
   parameters.put("PRODUCT_NAME", (String) one.get(2));
}

has no sense, you will set the parameter PRODUCT_NAME to last value (its a Map<String,Object>, on one key you can only have one value) and furthermore you should not use this when trying to pass a datasource, but only to pass parameters (for query, for path to images ecc.)

To generate a datasource from you List<List<String>> you can use the ListOfArrayDataSource, but you need to convert it to a List<Object[]>. I however would have converted it to a List<MyBean> and used the JRBeanCollectionDataSource. The MyBean class is similar to

public class MyBean {
    private String productName;
    ... all other fields
    private double totalCost;
    ... getters and setters
}

and then define in your jrxml these as fields instead of parameter

<field name="productName" class="java.lang.String"/>
<field name="totalCost" class="java.lang.Double"/>

Hence its the datasource that will be iterated in your detail band not the parameters.

这篇关于如何填补一个ArrayList报告？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

08-06 23:06
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