如何使用 DynamicReports 生成动态报告？

Question

我尝试使用 DynamicReports 生成动态报告，但总是遇到以下异常，任何人都可以给我解决方案。

Exception in thread "AWT-EventQueue-0" java.lang.NoSuchMethodError: net.sf.jasperreports.engine.base.JRBaseStyle.getParagraph()Lnet/sf/jasperreports/engine/JRParagraph;
    at net.sf.dynamicreports.jasper.transformation.StyleTransform.abstractStyle(StyleTransform.java:116)
    at net.sf.dynamicreports.jasper.transformation.StyleTransform.style(StyleTransform.java:74)
    at net.sf.dynamicreports.jasper.transformation.StyleTransform.addStyle(StyleTransform.java:65)
    at net.sf.dynamicreports.jasper.transformation.StyleTransform.transform(StyleTransform.java:59)
    at net.sf.dynamicreports.jasper.base.JasperReportDesign.transform(JasperReportDesign.java:104)
    at net.sf.dynamicreports.jasper.base.JasperReportDesign.<init>(JasperReportDesign.java:77)
    at net.sf.dynamicreports.jasper.base.JasperReportDesign.<init>(JasperReportDesign.java:69)
    at net.sf.dynamicreports.jasper.builder.JasperReportBuilder.toJasperReportDesign(JasperReportBuilder.java:215)
    at net.sf.dynamicreports.jasper.builder.JasperReportBuilder.getJasperParameters(JasperReportBuilder.java:242)
    at net.sf.dynamicreports.jasper.builder.JasperReportBuilder.toJasperPrint(JasperReportBuilder.java:252)
    at net.sf.dynamicreports.jasper.builder.JasperReportBuilder.show(JasperReportBuilder.java:281)
    at ClsManufac.ClsDynamicReport.build(ClsDynamicReport.java:43)
    at ClsManufac.ClsDynamicReport.<init>(ClsDynamicReport.java:30)
    at Manufacturing.FrmMonthlyStock.jButton1ActionPerformed(FrmMonthlyStock.java:335)
    at Manufacturing.FrmMonthlyStock.access$400(FrmMonthlyStock.java:23)
    at Manufacturing.FrmMonthlyStock$5.actionPerformed(FrmMonthlyStock.java:148)
    at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2012)
    at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2335)
    at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:404)
    at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:253)
    at java.awt.Component.processMouseEvent(Component.java:6175)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
    at java.awt.Component.processEvent(Component.java:5940)
    at java.awt.Container.processEvent(Container.java:2105)
    at java.awt.Component.dispatchEventImpl(Component.java:4536)
    at java.awt.Container.dispatchEventImpl(Container.java:2163)
    at java.awt.Component.dispatchEvent(Component.java:4362)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4461)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4125)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4055)
    at java.awt.Container.dispatchEventImpl(Container.java:2149)
    at java.awt.Window.dispatchEventImpl(Window.java:2478)
    at java.awt.Component.dispatchEvent(Component.java:4362)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:604)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:138)

---

我的 JFrame 中有一个 JTable 和一个 JButton，我需要的是使用 DynamicReport 生成报告（http://dynamicreports .sourceforge.net/）单击按钮时从 JTable 的数据中获取。 单击按钮时我所做的是将表模型传递给以下类，并尝试循环遍历表模型以生成报告。

package com;


import java.awt.Color;

import java.awt.Font;
import static net.sf.dynamicreports.report.builder.DynamicReports.*;

import static net.sf.dynamicreports.report.builder.DynamicReports.*;

import java.math.BigDecimal;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;

import net.sf.dynamicreports.examples.DataSource;
import net.sf.dynamicreports.jasper.builder.JasperReportBuilder;
import net.sf.dynamicreports.report.builder.DynamicReports;
import net.sf.dynamicreports.report.builder.style.StyleBuilder;
import net.sf.dynamicreports.report.constant.HorizontalAlignment;
import net.sf.dynamicreports.report.constant.LineStyle;
import net.sf.dynamicreports.report.exception.DRException;
import net.sf.jasperreports.engine.JRDataSource;
import org.apache.commons.lang.Validate;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.collections.ReferenceMap;
import org.apache.commons.digester.Rule;

public class SimpleReport {

    DefaultTableModel model;

    public SimpleReport(DefaultTableModel model) {
        this.model = model;
        build();
    }

    private void build() {

        StyleBuilder boldStyle = stl.style().bold();
        StyleBuilder boldCenteredStyle = stl.style(boldStyle).setHorizontalAlignment(HorizontalAlignment.CENTER);
        StyleBuilder columnTitleStyle = stl.style(boldCenteredStyle);
        StyleBuilder titleStyle = stl.style(boldStyle).setHorizontalAlignment(HorizontalAlignment.CENTER);

        try {
            JasperReportBuilder report = DynamicReports.report();
            report()//create new report design
                    .setColumnTitleStyle(columnTitleStyle).columns(//add columns
                    //            title,     field name     data type
                    //col.columnRowNumberColumn("No").setHorizontalAlignment(HorizontalAlignment.CENTER),
                    col.column("ID", "ID", type.stringType()).setHorizontalAlignment(HorizontalAlignment.LEFT),
                    col.column("Name", "Name", type.stringType()).setHorizontalAlignment(HorizontalAlignment.CENTER),
                    col.column("Phone", "Phone", type.stringType()).setHorizontalAlignment(HorizontalAlignment.CENTER)).title(cmp.text("Getting started\n").setStyle(titleStyle))//shows report title
                    .pageFooter(cmp.pageXofY())//shows number of page at page footer
                    .setDataSource(createDataSource())//set datasource
                    .show();//create and show report
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private JRDataSource createDataSource() {
        DataSource dataSource = new DataSource("ID", "Name", "Phone");



        for (int i = 0; i < model.getRowCount(); i++) {
            System.out.println(model.getValueAt(i, 2));
            dataSource.add(model.getValueAt(i, 0), model.getValueAt(i, 1), model.getValueAt(i, 2));

        }

        return dataSource;
    }

}

Answer 1

DynamicReports 似乎使用 JasperReports，但您的类路径中可能有两个库的不兼容版本。

检查您的 DynamicReports 版本的文档，了解所需的 JasperReports 版本。

Answer 2

我认为您无法正确添加 jar，这就是发生错误的原因。首先正确添加 jar，然后检查它是否可以正常工作！