jasper+ireport实现table控件用list作为数据源

需求是主报表中加入两个或者两个以上的table，也是刚刚发现table可以水平放置。主报表的数据源是json，table的是list<String>，这里没有用javabean所以当你有一组数据的时候，建议你建立一个size的List，这样才不会丢失数据，这里贴出代码，知道拷贝翟铁就可以出结果。

本文版权归__馋猫和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文链接，否则保留追究法律责任的权利。

先给出效果图，效果图如下↓

Java代码TableJsonTest.java如下↓

package a.test.xmlfile;

import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;

import net.sf.jasperreports.engine.JRParameter;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.design.JasperDesign;
import net.sf.jasperreports.engine.query.JsonQueryExecuterFactory;
import net.sf.jasperreports.engine.xml.JRXmlLoader;
import net.sf.jasperreports.view.JasperViewer;

public class TableJsonTest {
    public static String ReadFile(String Path) {
        BufferedReader reader = null;
        String laststr = "";
        try {
            FileInputStream fileInputStream = new FileInputStream(Path);
            InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, "utf-8");
            reader = new BufferedReader(inputStreamReader);
            String tempString = null;
            while ((tempString = reader.readLine()) != null) {
                laststr += tempString;
            }
            reader.close();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (reader != null) {
                try {
                    reader.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return laststr;
    }

    public static void main(String[] args) {

        List<String> nameList = new ArrayList<>();
        nameList.add("name1");
        nameList.add("name2");
        nameList.add("name3");
        nameList.add("name4");
        nameList.add("name5");

        List<String> ageList = new ArrayList<>();
        ageList.add("age1");
        ageList.add("age2");
        ageList.add("age3");
        ageList.add("age4");
        ageList.add("age5");

        List<String> codeList = new ArrayList<>();
        codeList.add("code1");
        codeList.add("code2");
        codeList.add("code3");
        codeList.add("code4");
        codeList.add("code5");
        codeList.add("code6");

        List<String> personList = new ArrayList<>();
        personList.add("person1");
        personList.add("person2");
        personList.add("person3");
        personList.add("person4");
        personList.add("person5");
        personList.add("person6");
        // 注意更改路径
        String s = ReadFile("F:\Users\Desktop\lib\tianjin.json");
        JasperDesign design;
        try {
            // 注意更改路径
            design = JRXmlLoader.load("F:\reportTest\tableTest.jrxml");
            HashMap<String, Object> paramsMap = new HashMap<String, Object>();
            // 第二种配置数据源的方式 InputStream
            InputStream is = new ByteArrayInputStream(s.getBytes("UTF-8"));
            paramsMap.put("JSON_INPUT_STREAM", is);
            paramsMap.put("ageList", ageList);
            paramsMap.put("nameList", nameList);
            paramsMap.put("codeList", codeList);
            paramsMap.put("personList", personList);
            // 配置其他参数
            paramsMap.put(JsonQueryExecuterFactory.JSON_LOCALE, Locale.ENGLISH);
            paramsMap.put(JRParameter.REPORT_LOCALE, Locale.US);
            // 加载模板
            JasperReport report = JasperCompileManager.compileReport(design);
            // 填充数据
            JasperPrint print = JasperFillManager.fillReport(report, paramsMap);
            // 预览显示
            JasperViewer.viewReport(print);

        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

}

 报表文件tableTest.jrxml如下↓

<?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="tableTest" pageWidth="595" pageHeight="842" whenNoDataType="AllSectionsNoDetail" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" isFloatColumnFooter="true" uuid="0c826da3-1634-4cec-8a87-8b0603713c5a">
    <property name="ireport.zoom" value="1.0"/>
    <property name="ireport.x" value="0"/>
    <property name="ireport.y" value="0"/>
    <style name="table">
        <box>
            <pen lineWidth="1.0" lineColor="#000000"/>
        </box>
    </style>
    <style name="table_TH" mode="Opaque" backcolor="#F0F8FF">
        <box>
            <pen lineWidth="0.5" lineColor="#000000"/>
        </box>
    </style>
    <style name="table_CH" mode="Opaque" backcolor="#BFE1FF">
        <box>
            <pen lineWidth="0.5" lineColor="#000000"/>
        </box>
    </style>
    <style name="table_TD" mode="Opaque" backcolor="#FFFFFF">
        <box>
            <pen lineWidth="0.5" lineColor="#000000"/>
        </box>
    </style>
    <style name="table 1">
        <box>
            <pen lineWidth="1.0" lineColor="#000000"/>
        </box>
    </style>
    <style name="table 1_TH" mode="Opaque" backcolor="#F0F8FF">
        <box>
            <pen lineWidth="0.5" lineColor="#000000"/>
        </box>
    </style>
    <style name="table 1_CH" mode="Opaque" backcolor="#BFE1FF">
        <box>
            <pen lineWidth="0.5" lineColor="#000000"/>
        </box>
    </style>
    <style name="table 1_TD" mode="Opaque" backcolor="#FFFFFF">
        <box>
            <pen lineWidth="0.5" lineColor="#000000"/>
        </box>
    </style>
    <subDataset name="Table Dataset 1" uuid="18c82022-8fbe-4952-87fb-71cf8c9b6351">
        <parameter name="ageList" class="java.util.List"/>
        <parameter name="nameList" class="java.util.List"/>
        <variable name="index" class="java.lang.Integer" calculation="Count">
            <variableExpression><![CDATA[$V{index}.valueOf( 01 )]]></variableExpression>
        </variable>
    </subDataset>
    <subDataset name="Table Dataset 2" uuid="3aea438c-0171-4117-8e08-60e643f9b7f5">
        <parameter name="codeList" class="java.util.List"/>
        <parameter name="personList" class="java.util.List"/>
        <variable name="index" class="java.lang.Integer" calculation="Count">
            <variableExpression><![CDATA[$V{index}.valueOf( 01 )]]></variableExpression>
        </variable>
    </subDataset>
    <parameter name="ageList" class="java.util.List"/>
    <parameter name="nameList" class="java.util.List"/>
    <parameter name="codeList" class="java.util.List"/>
    <parameter name="personList" class="java.util.List"/>
    <queryString language="json">
        <![CDATA[sales.item]]>
    </queryString>
    <field name="count" class="java.lang.String"/>
    <field name="project" class="java.lang.String"/>
    <field name="equipment" class="java.lang.String"/>
    <title>
        <band height="79" splitType="Stretch">
            <textField pattern="yyyy/MM/dd">
                <reportElement x="73" y="59" width="200" height="20" uuid="21653315-fb23-462a-b6c3-c881b33e5879"/>
                <textFieldExpression><![CDATA[new java.util.Date()]]></textFieldExpression>
            </textField>
            <textField pattern="HH.mm.ss">
                <reportElement x="73" y="39" width="200" height="20" uuid="44e19c2e-cc04-4470-b335-a0ab04bb7660"/>
                <textFieldExpression><![CDATA[new java.util.Date()]]></textFieldExpression>
            </textField>
        </band>
    </title>
    <columnHeader>
        <band height="20" splitType="Stretch">
            <staticText>
                <reportElement x="73" y="0" width="100" height="20" uuid="47e6b88e-bec1-45a5-8ce9-cb9ae0b711f0"/>
                <box>
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <text><![CDATA[count]]></text>
            </staticText>
            <staticText>
                <reportElement x="173" y="0" width="100" height="20" uuid="655c61ce-59d3-4dc9-893e-3e88c2ea975e"/>
                <box>
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <text><![CDATA[project]]></text>
            </staticText>
            <staticText>
                <reportElement x="273" y="0" width="100" height="20" uuid="9ddc2b36-8df8-4bd9-95ff-7c5229397f07"/>
                <box>
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <text><![CDATA[equipment]]></text>
            </staticText>
        </band>
    </columnHeader>
    <detail>
        <band height="20" splitType="Stretch">
            <textField>
                <reportElement x="73" y="0" width="100" height="20" uuid="064ef273-80ca-415b-a8ac-c920c89a9a3c"/>
                <box>
                    <topPen lineWidth="0.75"/>
                    <leftPen lineWidth="0.75"/>
                    <bottomPen lineWidth="0.75"/>
                    <rightPen lineWidth="0.75"/>
                </box>
                <textFieldExpression><![CDATA[$F{count}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="173" y="0" width="100" height="20" uuid="270b47b8-8435-49b3-afa2-5c78ed1209b8"/>
                <box>
                    <topPen lineWidth="0.75"/>
                    <leftPen lineWidth="0.75"/>
                    <bottomPen lineWidth="0.75"/>
                    <rightPen lineWidth="0.75"/>
                </box>
                <textFieldExpression><![CDATA[$F{project}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="273" y="0" width="100" height="20" uuid="5aa82e43-25e6-4cf1-8b61-9ed652c8bc66"/>
                <box>
                    <topPen lineWidth="0.75"/>
                    <leftPen lineWidth="0.75"/>
                    <bottomPen lineWidth="0.75"/>
                    <rightPen lineWidth="0.75"/>
                </box>
                <textFieldExpression><![CDATA[$F{equipment}]]></textFieldExpression>
            </textField>
        </band>
    </detail>
    <columnFooter>
        <band height="295">
            <componentElement>
                <reportElement key="table 1" style="table 1" stretchType="RelativeToTallestObject" x="0" y="0" width="285" height="138" isPrintWhenDetailOverflows="true" uuid="b1044ef3-a755-42af-8288-e405e052d8fa"/>
                <jr:table xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd">
                    <datasetRun subDataset="Table Dataset 2" uuid="aa932109-8a1e-4b4a-963f-9d3d27b0d141">
                        <datasetParameter name="codeList">
                            <datasetParameterExpression><![CDATA[$P{codeList}]]></datasetParameterExpression>
                        </datasetParameter>
                        <datasetParameter name="personList">
                            <datasetParameterExpression><![CDATA[$P{personList}]]></datasetParameterExpression>
                        </datasetParameter>
                        <dataSourceExpression><![CDATA[new net.sf.jasperreports.engine.data.JRBeanCollectionDataSource($P{codeList})]]></dataSourceExpression>
                    </datasetRun>
                    <jr:column width="90" uuid="45380ad9-3fb3-4e77-94e6-b135adec06d5">
                        <jr:columnHeader style="table 1_CH" height="30" rowSpan="1">
                            <staticText>
                                <reportElement x="0" y="0" width="90" height="30" uuid="4b5aafe9-3993-4ab8-8258-fef3a832520b"/>
                                <text><![CDATA[NO.]]></text>
                            </staticText>
                        </jr:columnHeader>
                        <jr:detailCell style="table 1_TD" height="20" rowSpan="1">
                            <textField>
                                <reportElement x="0" y="0" width="90" height="20" uuid="d98deaa6-6efe-4778-acc0-a2275007794e"/>
                                <textFieldExpression><![CDATA[$V{index}]]></textFieldExpression>
                            </textField>
                        </jr:detailCell>
                    </jr:column>
                    <jr:column width="90" uuid="542b5246-a72e-4bd4-aad2-fd72581733e9">
                        <jr:columnHeader style="table 1_CH" height="30" rowSpan="1">
                            <staticText>
                                <reportElement x="0" y="0" width="90" height="30" uuid="d406af75-214a-481a-9902-00d83686d64f"/>
                                <text><![CDATA[code]]></text>
                            </staticText>
                        </jr:columnHeader>
                        <jr:detailCell style="table 1_TD" height="20" rowSpan="1">
                            <textField>
                                <reportElement x="0" y="0" width="90" height="20" uuid="f87906d8-ca12-476d-b842-9c81cdfa6acc"/>
                                <textFieldExpression><![CDATA[""+$P{codeList}.get($V{index}-01)]]></textFieldExpression>
                            </textField>
                        </jr:detailCell>
                    </jr:column>
                    <jr:column width="90" uuid="9f2cdf79-d001-4d20-b51c-42191421bca6">
                        <jr:columnHeader style="table 1_CH" height="30" rowSpan="1">
                            <staticText>
                                <reportElement x="0" y="0" width="90" height="30" uuid="1d835d3b-2c8d-4d15-8a0d-44af3fe660df"/>
                                <text><![CDATA[person]]></text>
                            </staticText>
                        </jr:columnHeader>
                        <jr:detailCell style="table 1_TD" height="20" rowSpan="1">
                            <textField>
                                <reportElement x="0" y="0" width="90" height="20" uuid="c0f78257-a44b-4575-a2b2-1dbcd1ce72a5"/>
                                <textFieldExpression><![CDATA[""+$P{personList}.get($V{index}-01)]]></textFieldExpression>
                            </textField>
                        </jr:detailCell>
                    </jr:column>
                </jr:table>
            </componentElement>
            <componentElement>
                <reportElement key="table" style="table" stretchType="RelativeToTallestObject" x="285" y="0" width="270" height="138" isPrintWhenDetailOverflows="true" uuid="9df29de1-0e84-4220-9267-75e045eefccd"/>
                <jr:table xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd">
                    <datasetRun subDataset="Table Dataset 1" uuid="6e7a2173-23d9-469c-9f64-d7f6b45d893e">
                        <datasetParameter name="ageList">
                            <datasetParameterExpression><![CDATA[$P{ageList}]]></datasetParameterExpression>
                        </datasetParameter>
                        <datasetParameter name="nameList">
                            <datasetParameterExpression><![CDATA[$P{nameList}]]></datasetParameterExpression>
                        </datasetParameter>
                        <dataSourceExpression><![CDATA[new net.sf.jasperreports.engine.data.JRBeanCollectionDataSource($P{nameList})]]></dataSourceExpression>
                    </datasetRun>
                    <jr:column width="90" uuid="2d1eff98-3a41-4c3e-8271-8fefc1c47fad">
                        <jr:columnHeader style="table_CH" height="30" rowSpan="1">
                            <staticText>
                                <reportElement x="0" y="0" width="90" height="30" uuid="3fa6bc74-6ac4-47c9-8cae-8c86fbc1d3be"/>
                                <text><![CDATA[No]]></text>
                            </staticText>
                        </jr:columnHeader>
                        <jr:detailCell style="table_TD" height="20" rowSpan="1"/>
                    </jr:column>
                    <jr:column width="90" uuid="bc412dc8-a633-4698-af07-3418de941110">
                        <jr:columnHeader style="table_CH" height="30" rowSpan="1">
                            <staticText>
                                <reportElement x="0" y="0" width="90" height="30" uuid="6965be42-36a4-49a6-8ec4-b48f6159c55f"/>
                                <text><![CDATA[age]]></text>
                            </staticText>
                        </jr:columnHeader>
                        <jr:detailCell style="table_TD" height="20" rowSpan="1">
                            <textField>
                                <reportElement x="0" y="0" width="90" height="20" uuid="61d33b77-b578-45e5-886c-6b1bbea4eef0"/>
                                <textFieldExpression><![CDATA[""+$P{ageList}.get($V{index}-01)]]></textFieldExpression>
                            </textField>
                        </jr:detailCell>
                    </jr:column>
                    <jr:column width="90" uuid="06d5ec3f-f901-4651-b67d-82c9dc8ec575">
                        <jr:columnHeader style="table_CH" height="30" rowSpan="1">
                            <staticText>
                                <reportElement x="0" y="0" width="90" height="30" uuid="61e1d91e-55e7-4598-83e5-fdf8c46dc11c"/>
                                <text><![CDATA[name]]></text>
                            </staticText>
                        </jr:columnHeader>
                        <jr:detailCell style="table_TD" height="20" rowSpan="1">
                            <textField>
                                <reportElement x="0" y="0" width="90" height="20" uuid="b06ae43f-cd55-4b09-917c-3aea38c9cabb"/>
                                <textFieldExpression><![CDATA[""+$P{nameList}.get($V{index}-01)]]></textFieldExpression>
                            </textField>
                        </jr:detailCell>
                    </jr:column>
                </jr:table>
            </componentElement>
        </band>
    </columnFooter>
</jasperReport>

json数据源文件tianjin.json如下

 { "sales": {
    "item": [
       {
        
        "equipment": "equipment1",
        "project": "project1",
        "count": "1"
      },
      {
        
        "equipment": "equipment2",
        "project": "project2",
        "count": "1"
      },
      {
        
        "equipment": "equipment3",
        "project": "project3",
        "count": "1"
      },
      {
        
        "equipment": "equipment4",
        "project": "project4",
        "count": "1"
      },
      {
        
        "equipment": "equipment5",
        "project": "project5",
        "count": "1"
      },
      {
        
        "equipment": "equipment6",
        "project": "project6",
        "count": "1"
      }
    ]
  }}

本文版权归__馋猫和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文链接，否则保留追究法律责任的权利。