struts2中 JFreeChart使用

添加3个包

struts2-jfreechart-plugin-2.3.16.3.jar

jcommon-1.0.16.jar

jfreechart-1.0.13.jar

struts.xml中配置

查看struts2-jfreechart-plugin-2.3.16.3.jar中的struts-plugin.xml文件

查看其中的定义的东西 然后写着struts.xml中

1     <package name="freechart" extends="jfreechart-default">

2         <action name="freechart" class="cn.itcast.chart.MyFreeChart">

3

4                 <result type="chart" name="success" >

5                     <param name="height">800</param>

6                     <param name="width">600</param>

7                 </result>

8         </action>

9     </package>

写Action

 1 package cn.itcast.chart;

 2

 3 import java.io.Serializable;

 4

 5 import org.jfree.chart.JFreeChart;

 6 import org.jfree.chart.axis.NumberAxis;

 7 import org.jfree.chart.axis.ValueAxis;

 8 import org.jfree.chart.plot.XYPlot;

 9 import org.jfree.chart.renderer.xy.StandardXYItemRenderer;

10 import org.jfree.data.xy.XYSeries;

11 import org.jfree.data.xy.XYSeriesCollection;

12

13 import com.opensymphony.xwork2.ActionSupport;

14

15 public class MyFreeChart extends ActionSupport implements Serializable {

16     private JFreeChart chart;

17

18     public JFreeChart getChart() {

19         return chart;

20     }

21     public String execute(){

22         ValueAxis xAxis = new NumberAxis("年度");

23         ValueAxis yAxis = new NumberAxis("产值");

24         XYSeries xySeries = new XYSeries("绿豆");

25         xySeries.add(0,300);

26         xySeries.add(1,200);

27         xySeries.add(2,400);

28         xySeries.add(3,500);

29         xySeries.add(4,600);

30         xySeries.add(5,500);

31         xySeries.add(6,800);

32         xySeries.add(7,1000);

33         xySeries.add(8,1100);

34         XYSeriesCollection xyDataset = new XYSeriesCollection(xySeries);

35         XYPlot xyPlot = new XYPlot(xyDataset,xAxis,yAxis,new StandardXYItemRenderer(StandardXYItemRenderer.SHAPES_AND_LINES));

36         chart = new JFreeChart(xyPlot);

37         return SUCCESS;

38     }

39 }

就能返回图表

struts2中 JFreeChart使用,布布扣,bubuko.com