JFreeChart生成餅圖，柱圖并與Sturts2整合

jopen 10年前發布 | 17K 次閱讀 JFreeChart 圖表/報表制作

首先要去官網下載所需要的jar包 http://www.jfree.org/jfreechart/

生成餅圖:

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) {
        //默認餅圖數據集
        DefaultPieDataset dpd=new DefaultPieDataset();

        dpd.setValue("市場部",25);
        dpd.setValue("IT部",50);
        dpd.setValue("財務部",30);
        dpd.setValue("其它部",25);

        JFreeChart jfc=ChartFactory.createPieChart3D
                ("某公司人員組織結構圖",dpd,true,true,false);
          Font font = new Font("黑體", 1, 20);

          jfc.getTitle().setFont(font);

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

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

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


         ChartFrame chartFrame=new ChartFrame("s司人員結構圖s",jfc);



        chartFrame.pack();

    //chartFrame.setFont(font);

        chartFrame.setVisible(true);


    }

}

柱圖

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 {

    //構造函數
    public Test2(String title) {
        super(title);

        //將面版存放到 內容面版中
        this.setContentPane(createJPanel());

    }


    //創建數據集category 分類
    public static CategoryDataset createDataset(){
        DefaultCategoryDataset category =new DefaultCategoryDataset();
        category.setValue(20, "管理人員a", "管理人員");
        category.setValue(30, "IT人員b", "IT人員");
        category.setValue(50, "人事人員c", "人事人員");
        category.setValue(20, "財務人員d", "財務人員");
        return category;
    }


    //創建JFreeChart 圖對象
    public static JFreeChart createJFreeChart(CategoryDataset  category){

    //構建JFreeChart 對象
    JFreeChart jfreeChart=ChartFactory.createBarChart3D("hello", "人員分布","人員數量", 
            category, PlotOrientation.VERTICAL, true, true,false);  

    //對值重置
    jfreeChart.setTitle(new TextTitle("某公司人員圖",
            new Font("黑體",Font.BOLD +Font.ITALIC, 20)));
    //分類圖
    CategoryPlot plot=(CategoryPlot)jfreeChart.getPlot();


    //領域軸
    CategoryAxis axis=plot.getDomainAxis();
    axis.setLabelFont(new Font("宋體",Font.PLAIN,18));
    axis.setTickLabelFont(new Font("宋體",Font.PLAIN,15));

    //設置Y坐軸
    plot.getRangeAxis().setLabelFont(new Font("宋體",Font.BOLD,18));//設置y軸坐標上的標題的字體
    //設置y軸坐標上的字體
    plot.getRangeAxis().setTickLabelFont(new Font("宋體",Font.BOLD,15));
    //lagend
    jfreeChart.getLegend().setItemFont(new Font("宋體",Font.BOLD,12));


    return jfreeChart;

    }


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

        JPanel j= new ChartPanel(jfc);

        return j;
    }



    public static void main(String[] args) {
    //執行 生成類的實列
        Test2 test2=new Test2("hello world...");
        test2.pack();
        test2.setVisible(true);

    }

}

生成圖片

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("市場部",15);
        dpd.setValue("IT部",20);
        dpd.setValue("財務部",120);
        dpd.setValue("其它部",125);
        return dpd;

    }

    /**
     * @param args
     */
    public static void main(String[] args) throws Exception
    {
     JFreeChart jfc=ChartFactory.createPieChart3D("公司部門統計圖", createPinDateset(), 
             true, true, false);
     //設置 標題字體
     jfc.getTitle().setFont(new Font("微軟雅黑",Font.BOLD,25));

     //polt 圖
     PiePlot pp=(PiePlot) jfc.getPlot();
     pp.setLabelFont(new Font("微軟雅黑",Font.BOLD,15));

     //圖例字體
     jfc.getLegend().setItemFont(new Font("微軟雅黑",Font.BOLD,15));

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

     //輸出圖片
     OutputStream os=new FileOutputStream("Company.jpg");
     //圖表 實用工具
     ChartUtilities.writeChartAsJPEG(os, jfc, 1000, 800);

     os.close();

    }

}

和strtus2整合，在項目中應用:

頁面代碼：

<%@ 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="藍球" 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實現類代碼:

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("興趣統計結果", "項目","結果",
                this.createDatasetss(),
                PlotOrientation.VERTICAL, 
                true, 
                true,
                false);


        if(null==chart){
            throw new RuntimeException("chart怎么會是空呢，你大爺爺的---------");

        }
        //設置字體
        chart.setTitle(new TextTitle("興趣統計結果",new Font("宋體",Font.BOLD,20)));

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

        //設置文字傾多少度
        axis.setCategoryLabelPositions(CategoryLabelPositions.UP_45);

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

    ////計算投票 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);
        }
        }
    }

    //獲取數據集
    public CategoryDataset createDatasetss(){


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


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

    //設置值
    //System.out.println("1:"+(Integer)map.get("nanqiu"));
    dcd.setValue((Integer)map.get("nanqiu"), "藍","藍球");
    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,"","藍球");
    dcd.setValue(6, "","足球");
    dcd.setValue(34, "","羽毛球");
    dcd.setValue(21, "","游泳");*/

    return dcd;
    }



}

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JFreeChart 圖表/報表制作

JFreeChart生成餅圖，柱圖并與Sturts2整合

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