如何在Table组件的帮助下显示JRBeanCollectionDataSource数据？

我需要在Table组件(JasperReports)中显示JRBeanCollectionDataSource数据.

这是我的模板,ShowPerson.jrxml文件:

我的POJO:

public class Person {

    private String name;
    private int age;

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
}

建筑报告主要类:

public class OpenReport {
    public static void main(String[] args) throws JRException {
        Map peopleMap = new HashMap<>();
        peopleMap.put("Sisco", 17);
        peopleMap.put("Eve", 19);
        peopleMap.put("John", 20);
        peopleMap.put("George", 21);
        peopleMap.put("Steve", 18);

        ArrayList dataList = new ArrayList();

        for(Map.Entry personMap : peopleMap.entrySet()) {
            Person person = new Person();
            person.setName(personMap.getKey());
            person.setAge(Integer.valueOf(personMap.getValue().toString()));
            dataList.add(person);
        }

        JRBeanCollectionDataSource beanColDataSource = new JRBeanCollectionDataSource(dataList);
        Map parameters = new HashMap();
        parameters.put("INFO", "Hello");

        JasperReport report = (JasperReport) JRLoader.loadObject("src/test/ireport/ShowPerson.jasper");
        JasperPrint jasperPrint = JasperFillManager.fillReport(report, parameters, beanColDataSource);

        JFrame frame = new JFrame("Report");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.getContentPane().add(new JRViewer(jasperPrint));
        frame.pack();
        frame.setVisible(true);
    }
}

Laura.. 19

1.从服务器发送数据源作为参数,并使用不同的报告填充报告(可以为空).

JRBeanCollectionDataSource beanColDataSource = new JRBeanCollectionDataSource(dataList);
        Map parameters = new HashMap();
        parameters.put("INFO", "Hello");
        parameters.put("DS1", beanColDataSource);

        JasperReport report = (JasperReport) JRLoader.loadObject("src/test/ireport/ShowPerson.jasper");
        JasperPrint jasperPrint = JasperFillManager.fillReport(report, parameters, new JREmptyDataSource());

2.在JRBeanCollectionDataSource类型的报告中删除一个新参数

3.设置TableDatasource以使用$ P {DS1}参数.

    
        
             
        
    
.....

4.Declare表数据集1中的字段(名称,年龄).

5.在表格中,在DetailBand中,在每列中添加一个带有相应字段的TextField(分别为$ F {name}和$ F {age}).