struts2初步-整合JFreeChart

wangzhiyun_cu 发表于 2011-12-20 09:48

<DIV>首先要加入以下3个jar包：</DIV>
<DIV>jfreechart-1.0.13.jar</DIV>
<DIV>jcommon-1.0.16.jar</DIV>
<DIV>struts2-jfreechart-plugin-2.2.1.1.jar</DIV>
<DIV>当然，版本号因人而异</DIV>
<DIV> </DIV>
<DIV>来个测试的class：</DIV>
<DIV> </DIV>
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<CODE>public class JFreeChartUtil {     public static JFreeChart createChart() throws IOException {         // 数据集         DefaultPieDataset dpd = new DefaultPieDataset();         dpd.setValue("管理人员" , 25 );         dpd.setValue("市场人员" , 25 );         dpd.setValue("开发人员" , 45 );         dpd.setValue("其它人员" , 10 );         // 创建PieChart对象         JFreeChart chart = ChartFactory.createPieChart3D("某公司人员组织结构图" , dpd,                 true , true , false );         setFont(chart);         return chart;     }     public static void setFont(JFreeChart chart) {         Font font = new Font( "宋体" , Font.ITALIC, 12 );         PiePlot plot = (PiePlot) chart.getPlot();         chart.getTitle().setFont(font);         plot.setLabelFont(font);         chart.getLegend().setItemFont(font);     } }</CODE></TD></TR></TBODY></TABLE>
 再来个action
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<CODE>public class JFreeChartAction extends ActionSupport {     /**      *      */     private static final long serialVersionUID = -1163236831212708227L;     /**      * 定义JFreeChart对象大家请注意在这里JFreeChart对象名只能为chart      * 不能是别的      * 关于这点      * 大家可以上struts2网站上面查看一下      *      * http://struts.apache.org/2.x/docs/jfreechart-plugin.html      */     private JFreeChart chart;               @Override     public String execute() throws Exception {         chart = JFreeChartUtil.createChart();         return SUCCESS;     }     public JFreeChart getChart() {         return chart;     }     public void setChart(JFreeChart chart) {         this.chart = chart;     }     }</CODE></TD></TR></TBODY></TABLE>
 配置struts.xml
<TABLE style="BORDER-COLLAPSE: collapse" borderColor=#999999 cellSpacing=0 cellPadding=0 width="95%" bgColor=#f1f1f1 border=1>
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<CODE>              <package name = "JFreeChart" extends = "jfreechart-default" >         <action name = "JFreeChart" class = "com.****.JFreeChartAction" >             <result type = "chart" >                 <param name = "width" >600</param>                 <param name = "height" >400</param>             </result>         </action >     </package ></CODE></TD></TR></TBODY></TABLE>
  
启动tomcat，输入网址测试一下：
<A href="http://localhost:8080/Struts2Demo/JFreeChart.action">http://localhost:8080/Struts2Demo/JFreeChart.action</A>
结果如图：
<DIV align=center><IMG src="http://blogimg.chinaunix.net/blog/upfile2/110413100757.png" onload="javascript:if(this.width>500)this.width=500;" border=0></DIV>

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struts2初步-整合JFreeChart