JFreeChart使用 之 IT 分享心得
??? 2012年4月17日，嘿嘿，公司做到报表问题，结合公司，使用了JFreeChart，自己花了一个上午学习，总结一点出来了，希望能对所有在IT新接触人员有所帮助!
??? 首先，去官方网站:
? http://www.jfree.org/jfreechart/? 下载，获取jar
?
?public class Test {
?/**
? *?@author 钟艳明?? QQ:962589149
? */
?public static void main(String[] args) {
??Test test=new Test();
??test.disPlay();
??test.display2();
??test.display3();
??test.display4(null);
?}
?//圆饼形状
?public void display4(CategoryDataset dataset)
?{
??DefaultCategoryDataset cds = new DefaultCategoryDataset();
???? cds.setValue(20, "英语1", "英语");
???? cds.setValue(10, "数学1", "数学");
???? cds.setValue(15, "语文", "语文");
???? cds.setValue(25, "d", "物理");
???? cds.setValue(30, "e", "化学");
??if(dataset==null)
??{
???dataset=cds;
??}
??? JFreeChart chart = ChartFactory.createBarChart("课程分布图","课程", "比例", dataset,?? PlotOrientation.VERTICAL, true, true, true);
??? CategoryPlot plot = chart.getCategoryPlot();
??? CategoryAxis domainAxis = plot.getDomainAxis();//x轴
??? ValueAxis numberaxis = plot.getRangeAxis(); //y轴
??? TextTitle t = chart.getTitle();
??? t.setFont(new Font("宋体",Font.BOLD,40));//标题文字
??? domainAxis.setLabelFont(new Font("宋体",Font.BOLD,20));//x轴标题文字
??? domainAxis.setTickLabelFont(new Font("黑体",Font.BOLD,10));//x轴坐标上文字
??? numberaxis.setLabelFont(new Font("宋体",Font.BOLD,20));//y轴标题文字
??? numberaxis.setTickLabelFont(new Font("黑体",Font.BOLD,10));//y轴坐标上文字
??? chart.getLegend().setItemFont(new Font("黑体",Font.BOLD,12));//图例文字
??? ChartFrame? frame=new ChartFrame ("CityInfoPort公司组织架构图 ",chart,true);
?????? frame.pack();
?????? frame.setVisible(true);
?}
?//保存为图片
?public void display3()
?{
??try{
???//初始化数据
???double[][] data = new double[][] {{1310, 1220, 1110, 1000},{720, 700, 680, 640},{1130, 1020, 980, 800},{440, 400, 360, 300}};
???String[] rowKeys = {"猪肉", "niurou","鸡肉", "鱼肉"};
???String[] columnKeys = {"广州", "shenzhen", "东莞", "佛山"};
???//创建数据源
???CategoryDataset dataset=DatasetUtilities.createCategoryDataset(rowKeys, columnKeys,data);
???//创建折线图
????? JFreeChart chart = ChartFactory.createBarChart3D("全国食物统计","肉类","销量",dataset,PlotOrientation.VERTICAL,true,true,false);
????? //获取绘图对象
????? CategoryPlot plot = chart.getCategoryPlot();
????? //获取X? Y轴
????? CategoryAxis domainAxis = plot.getDomainAxis();
????? NumberAxis numberaxis = (NumberAxis) plot.getRangeAxis();
????? //解决标题乱码
????? chart.getTitle().setFont(new Font("宋体",Font.BOLD,16));
????? //解决X轴乱码
????? domainAxis.setLabelFont(new Font("宋体",Font.PLAIN, 16));
????? domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));
????? //解决Y轴乱码
????? numberaxis.setLabelFont(new Font("宋体",Font.PLAIN, 16));
????? numberaxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));
????? //解决底部乱码问题
????? chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 16));
???//图片保存路径
???String imageURL ="D://yanming/201200021233.png";
???FileOutputStream jpg = null;
???jpg = new FileOutputStream(imageURL);
???int width=630;
???int height=400;
???ChartUtilities.writeChartAsPNG(jpg, chart, width,height);
???System.out.println("图片创建成功!");
??}catch(Exception ex)
??{
???ex.printStackTrace();
??}
??
?}
?//第二种显示方式
?public void display2()
?{
??//初始化
??double[][] data = new double[][] {{1310, 1220, 1110, 1000},{720, 700, 680, 640},{1130, 1020, 980, 800},{440, 400, 360, 300}};
??String[] rowKeys = {"猪肉", "niurou","鸡肉", "鱼肉"};
??String[] columnKeys = {"广州", "shenzhen", "东莞", "佛山"};
??//创建数据源
??CategoryDataset dataset=DatasetUtilities.createCategoryDataset(rowKeys, columnKeys,data);
??//创建折线图
??? JFreeChart chart = ChartFactory.createBarChart3D("全国食物统计","肉类","销量",dataset,PlotOrientation.VERTICAL,true,true,false);
??? //获取绘图对象
??? CategoryPlot plot = chart.getCategoryPlot();
??? //获取X? Y轴
??? CategoryAxis domainAxis = plot.getDomainAxis();
??? NumberAxis numberaxis = (NumberAxis) plot.getRangeAxis();
??? //解决标题乱码
??? chart.getTitle().setFont(new Font("宋体",Font.BOLD,16));
??? //解决X轴乱码
??? domainAxis.setLabelFont(new Font("宋体",Font.PLAIN, 16));
??? domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));
??? //解决Y轴乱码
??? numberaxis.setLabelFont(new Font("宋体",Font.PLAIN, 16));
??? numberaxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));
??? //解决底部乱码问题
??? chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 16));
??? ChartFrame? frame=new ChartFrame ("CityInfoPort公司组织架构图 ",chart,true);
?????? frame.pack();
?????? frame.setVisible(true);
?}
?//最简单的一种现实方式,传入的是一个map
?public void disPlay()
?{
??// TODO 自动生成方法存根
??DefaultPieDataset dfp=new DefaultPieDataset();
??????? dfp.setValue("管理人员", 25);
??????? dfp.setValue("市场人员", 35);
??????? dfp.setValue("开发人员", 20);
??????? dfp.setValue("后勤人员", 5);
??????? dfp.setValue("财务人员", 15);
???????? //Create JFreeChart object
?????? JFreeChart chart =ChartFactory.createPieChart("CityInfoPort公司组织架构图",dfp, true, true, true);
?????? //解决乱码问题 标题
?????? //乱码解决开始
?????? TextTitle textTitle = chart.getTitle();??
?????? textTitle.setFont(new Font("宋体", Font.PLAIN, 20)); //标题文字乱码
?????? PiePlot plot=(PiePlot)chart.getPlot();
?????? plot.setLabelFont(new Font("宋体",Font.BOLD,20));//饼上的文字乱码
?????? chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12)); //图例文字乱码
????? //乱码解决结束
?????? ChartFrame? frame=new ChartFrame ("CityInfoPort公司组织架构图 ",chart,true);
?????? frame.setFont(new Font("宋体", Font.BOLD, 15));
?????? frame.pack();
?????? frame.setVisible(true);
?}
}
?
下面是效果图
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