Java报表工具

首先要去官网下载所需要的jar包   http://www.jfree.org/jfreechart/

生成饼图:

 package jFreeTest;

 import java.awt.Font;

 import org.jfree.chart.ChartFactory;
 import org.jfree.chart.ChartFrame;
 import org.jfree.chart.JFreeChart;
 import org.jfree.chart.plot.PiePlot;
 import org.jfree.chart.title.TextTitle;
 import org.jfree.data.general.DefaultPieDataset;

 public class Test1 {
     /**
      * @param args
      */
     public static void main(String[] args) {
         //默认饼图数据集
         DefaultPieDataset dpd=new DefaultPieDataset();

         dpd.setValue("市场部",25);
         dpd.setValue("IT部",50);
         dpd.setValue("财务部",30);
         dpd.setValue("其它部",25);

         JFreeChart jfc=ChartFactory.createPieChart3D
                 ("某公司人员组织结构图",dpd,true,true,false);
           Font font = new Font("黑体", 1, 20);

           jfc.getTitle().setFont(font);

           ((PiePlot)jfc.getPlot()).setLabelFont(font);

         /*  PiePlot pieplot = (PiePlot)jfc.getPlot();
           pieplot.setLabelFont(font);  */

          jfc.getLegend().setItemFont(new Font("宋体",2,18));


          ChartFrame chartFrame=new ChartFrame("s司人员结构图s",jfc);



         chartFrame.pack();

     //chartFrame.setFont(font);

         chartFrame.setVisible(true);


     }

 }

柱图

 package jFreeTest;

 import java.awt.Font;

 import javax.swing.JPanel;



 import org.jfree.chart.ChartFactory;
 import org.jfree.chart.ChartPanel;
 import org.jfree.chart.JFreeChart;
 import org.jfree.chart.axis.CategoryAxis;
 import org.jfree.chart.plot.CategoryPlot;
 import org.jfree.chart.plot.PlotOrientation;
 import org.jfree.chart.title.TextTitle;
 import org.jfree.data.category.CategoryDataset;
 import org.jfree.data.category.DefaultCategoryDataset;
 import org.jfree.ui.ApplicationFrame;

 public class Test2 extends ApplicationFrame {

     //构造函数
     public Test2(String title) {
         super(title);

         //将面版存放到 内容面版中
         this.setContentPane(createJPanel());

     }


     //创建数据集category 分类
     public static CategoryDataset createDataset(){
         DefaultCategoryDataset category =new DefaultCategoryDataset();
         category.setValue(20, "管理人员a", "管理人员");
         category.setValue(30, "IT人员b", "IT人员");
         category.setValue(50, "人事人员c", "人事人员");
         category.setValue(20, "财务人员d", "财务人员");
         return category;
     }


     //创建JFreeChart 图对象
     public static JFreeChart createJFreeChart(CategoryDataset  category){

     //构建JFreeChart 对象
     JFreeChart jfreeChart=ChartFactory.createBarChart3D("hello", "人员分布","人员数量",
             category, PlotOrientation.VERTICAL, true, true,false);

     //对值重置
     jfreeChart.setTitle(new TextTitle("某公司人员图",
             new Font("黑体",Font.BOLD +Font.ITALIC, 20)));
     //分类图
     CategoryPlot plot=(CategoryPlot)jfreeChart.getPlot();


     //领域轴
     CategoryAxis axis=plot.getDomainAxis();
     axis.setLabelFont(new Font("宋体",Font.PLAIN,18));
     axis.setTickLabelFont(new Font("宋体",Font.PLAIN,15));

     //设置Y坐轴
     plot.getRangeAxis().setLabelFont(new Font("宋体",Font.BOLD,18));//设置y轴坐标上的标题的字体
     //设置y轴坐标上的字体
     plot.getRangeAxis().setTickLabelFont(new Font("宋体",Font.BOLD,15));
     //lagend
     jfreeChart.getLegend().setItemFont(new Font("宋体",Font.BOLD,12));


     return jfreeChart;

     }


     /**
      * 面版 存放jfree cahrt
      * @param args
      */
     public static JPanel createJPanel(){
         //创建JFreeChart
         JFreeChart jfc=createJFreeChart(createDataset());

         JPanel j= new ChartPanel(jfc);

         return j;
     }



     public static void main(String[] args) {
     //执行 生成类的实列
         Test2 test2=new Test2("hello world...");
         test2.pack();
         test2.setVisible(true);

     }

 }

生成图片

:

 package jFreeTest;

 import java.awt.Font;
 import java.io.FileOutputStream;
 import java.io.OutputStream;

 import org.jfree.chart.ChartFactory;
 import org.jfree.chart.ChartFrame;
 import org.jfree.chart.ChartUtilities;
 import org.jfree.chart.JFreeChart;
 import org.jfree.chart.plot.PiePlot;
 import org.jfree.chart.title.TextTitle;
 import org.jfree.data.general.DefaultPieDataset;

 public class ImageTest3 {

     //Dataset
     public static DefaultPieDataset createPinDateset(){
         DefaultPieDataset dpd=new DefaultPieDataset();
         dpd.setValue("市场部",15);
         dpd.setValue("IT部",20);
         dpd.setValue("财务部",120);
         dpd.setValue("其它部",125);
         return dpd;

     }

     /**
      * @param args
      */
     public static void main(String[] args) throws Exception
     {
      JFreeChart jfc=ChartFactory.createPieChart3D("公司部门统计图", createPinDateset(),
              true, true, false);
      //设置 标题字体
      jfc.getTitle().setFont(new Font("微软雅黑",Font.BOLD,25));

      //polt 图
      PiePlot pp=(PiePlot) jfc.getPlot();
      pp.setLabelFont(new Font("微软雅黑",Font.BOLD,15));

      //图例字体
      jfc.getLegend().setItemFont(new Font("微软雅黑",Font.BOLD,15));

     /* ChartFrame cf=new ChartFrame("",jfc);
      cf.pack();
      cf.setVisible(true);*/

      //输出图片
      OutputStream os=new FileOutputStream("Company.jpg");
      //图表 实用工具
      ChartUtilities.writeChartAsJPEG(os, jfc, 1000, 800);

      os.close();

     }

 }

和strtus2整合，在项目中应用:

页面代码：

 <%@ page language="java" contentType="text/html"    pageEncoding="UTF-8"%>
 <%@ taglib prefix="s" uri="/struts-tags" %>
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>Insert title here</title>
 </head>
 <body>
 <h1>Chart Test</h1>
 <s:form action="showTick.action"  method="post">
 <s:checkbox name="interest" label="蓝球" fieldValue="nanqiu" labelposition="left"/>
 <s:checkbox name="interest" label="足球" fieldValue="zhuqiu" labelposition="left"/>
 <s:checkbox name="interest" label="羽毛球" fieldValue="ymq" labelposition="left"/>
 <s:checkbox name="interest" label="游泳" fieldValue="youyong" labelposition="left"/>
 <s:submit value="提交"/>
 </s:form>
 </body>
 </html>

struts.xml文件:

 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE struts PUBLIC
     "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
     "http://struts.apache.org/dtds/struts-2.3.dtd">

     <struts>
     <package name="default"  extends="jfreechart-default, jasperreports-default">

     <action name="showTick" class="strutsAction.ShowTick">
     <result name="success"  type="chart">
      <param name="width">800</param>
      <param name="height">600</param>
      </result>

     </action>

     <!-- jasperReport -->
     <action name="showReport" class="strutsAction.ShowRepeort">
     <result name="success" type="jasper">
     <param name="location">test.jasper</param>
     <param name="dataSource">list</param>
     <param name="format">PDF</param>

     </result>
     </action>

     </package>

     </struts>

action实现类代码:

 package strutsAction;

 import java.awt.Font;
 import java.util.List;
 import java.util.Map;


 import org.jfree.chart.ChartFactory;
 import org.jfree.chart.JFreeChart;
 import org.jfree.chart.axis.CategoryAxis;
 import org.jfree.chart.axis.CategoryLabelPositions;
 import org.jfree.chart.plot.CategoryPlot;
 import org.jfree.chart.plot.PlotOrientation;
 import org.jfree.chart.title.TextTitle;
 import org.jfree.data.category.CategoryDataset;
 import org.jfree.data.category.DefaultCategoryDataset;

 import com.opensymphony.xwork2.ActionContext;
 import com.opensymphony.xwork2.ActionSupport;

 public class ShowTick extends ActionSupport {

     //jfreecha
     private JFreeChart chart;

     public JFreeChart getChart() {

         chart=ChartFactory.createBarChart("兴趣统计结果", "项目","结果",
                 this.createDatasetss(),
                 PlotOrientation.VERTICAL,
                 true,
                 true,
                 false);


         if(null==chart){
             throw new RuntimeException("chart怎么会是空呢，你大爷爷的---------");

         }
         //设置字体
         chart.setTitle(new TextTitle("兴趣统计结果",new Font("宋体",Font.BOLD,20)));

         //x
         CategoryPlot cp=(CategoryPlot)chart.getPlot();
         CategoryAxis axis=cp.getDomainAxis();
         axis.setLabelFont(new Font("宋体",Font.BOLD,18));
         axis.setTickLabelFont(new Font("宋体",Font.BOLD,15));

         //设置文字倾多少度
         axis.setCategoryLabelPositions(CategoryLabelPositions.UP_45);

         //y
         cp.getRangeAxis().setLabelFont(new Font("宋体",Font.BOLD,18));
         cp.getRangeAxis().setTickLabelFont(new Font("宋体",Font.BOLD,15));
         //legend
         chart.getLegend().setItemFont(new Font("宋体",Font.BOLD,20));

         return chart;
     }



     private List<String> interest;

     public List<String> getInterest() {
         return interest;
     }

     public void setInterest(List<String> interest) {
         this.interest = interest;
     }

     @Override
     public String execute() throws Exception {

         return SUCCESS;
     }

     ////计算投票 并入入aplication
     public void interestResult(List<String> interests){
         ActionContext ac=ActionContext.getContext();
         Map mp=ac.getApplication();

         for(String str:interests){

         if(!mp.containsKey(str)){
             mp.put(str, 1);
         }else{
             mp.put(str, (Integer)mp.get(str)+1);
         }
         }
     }

     //获取数据集
     public CategoryDataset createDatasetss(){


     DefaultCategoryDataset dcd=new DefaultCategoryDataset();
     //计算投票
     this.interestResult(this.getInterest());


     //获取application
     ActionContext ac=ActionContext.getContext();
     Map map =ac.getApplication();

     //设置值
     //System.out.println("1:"+(Integer)map.get("nanqiu"));
     dcd.setValue((Integer)map.get("nanqiu"), "蓝","蓝球");
     dcd.setValue((Integer)map.get("zhuqiu"), "足","足球");
     dcd.setValue((Integer)map.get("ymq"), "羽毛","羽毛球");
     dcd.setValue((Integer)map.get("youyong"), "游泳","游泳");

     /*dcd.setValue(5,"","蓝球");
     dcd.setValue(6, "","足球");
     dcd.setValue(34, "","羽毛球");
     dcd.setValue(21, "","游泳");*/

     return dcd;
     }



 }

http://blog.csdn.net/liangrui1988/article/details/9375189