ireport+javabean实现可视化报表

package sourceproviderpk; import java.util.Vector; import datasourcepk.ChartDataSource; 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 reportbean.ChartDataBean; public class ChartDataSourceProvider extends JRAbstractBeanDataSourceProvider { public ChartDataSourceProvider(Class arg0) { super(arg0); // TODO Auto-generated constructor stub } public ChartDataSourceProvider() { super(ChartDataBean.class); // TODO Auto-generated constructor stub } public JRDataSource create(JasperReport arg0) throws JRException { // TODO Auto-generated method stub ChartDataSource ds=new ChartDataSource(getQueryResult()); return ds; } public void dispose(JRDataSource arg0) throws JRException { // TODO Auto-generated method stub } public static Vector<ChartDataBean> getQueryResult(){ Vector<ChartDataBean> vector = new Vector<ChartDataBean>(); ChartDataBean result = new ChartDataBean(); result.setCategory("北京"); result.setSerieas("联通"); result.setValue(1500); vector.addElement(result); result = new ChartDataBean(); result.setCategory("北京"); result.setSerieas("电信"); result.setValue(1600); vector.addElement(result); result = new ChartDataBean(); result.setCategory("北京"); result.setSerieas("移动"); result.setValue(2000); vector.addElement(result); result = new ChartDataBean(); result.setCategory("上海"); result.setSerieas("联通"); result.setValue(1900); vector.addElement(result); result = new ChartDataBean(); result.setCategory("上海"); result.setSerieas("电信"); result.setValue(600); vector.addElement(result); result = new ChartDataBean(); result.setCategory("上海"); result.setSerieas("移动"); result.setValue(1200); vector.addElement(result); result = new ChartDataBean(); result.setCategory("天津"); result.setSerieas("联通"); result.setValue(900); vector.addElement(result); result = new ChartDataBean(); result.setCategory("天津"); result.setSerieas("电信"); result.setValue(800); vector.addElement(result); result = new ChartDataBean(); result.setCategory("天津"); result.setSerieas("移动"); result.setValue(1400); vector.addElement(result); return vector; } }