jasperreport 教程 JasperReport 个人使用的一些经验(2)

4.主报表数据集,测试数据

import java.util.ArrayList;
import java.util.List;
import net.sf.jasperreports.engine.JRDataSource;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.data.JRAbstractBeanDataSourceProvider;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;

/**
 *
 * @author xiaoquan
 */
public class TestSubReport extends JRAbstractBeanDataSourceProvider {

    public TestSubReport() {
        super(MainVO.class);
    }

    public JRDataSource create(JasperReport arg0) throws JRException {
        List<MainVO> mainList = new ArrayList<MainVO>();
        List<SubVO> list1 = new ArrayList<SubVO>();
        List<SubVO> list2 = new ArrayList<SubVO>();

        SubVO svo1 = new SubVO();
        svo1.setName("单位1");
        SubVO svo2 = new SubVO();
        svo2.setName("单位2");
        SubVO svo3 = new SubVO();
        svo3.setName("单位3");
        SubVO svo4 = new SubVO();
        svo4.setName("单位4");

        list1.add(svo4);
        list1.add(svo3);

        list2.add(svo1);
        list2.add(svo2);
        list2.add(svo3);

        MainVO vo1 = new MainVO();
        vo1.setTitle("场1");
        vo1.setSubList(list1);

        MainVO vo2 = new MainVO();
        vo2.setTitle("场2");
        vo2.setSubList(list2);

        mainList.add(vo2);
        mainList.add(vo1);

        return new JRBeanCollectionDataSource(mainList);
    }

    public void dispose(JRDataSource arg0) throws JRException {
        
    }
}

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