JFreeChart教程二

package test;

import java.awt.Color;   
import java.awt.Dimension;   
import java.awt.Font;   
import java.awt.GradientPaint;   
import java.io.File;
import java.io.IOException;
  
import javax.swing.JPanel;   
  
import org.jfree.chart.ChartFactory;   
import org.jfree.chart.ChartPanel;   
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;   
import org.jfree.chart.axis.CategoryAxis;   
import org.jfree.chart.axis.CategoryLabelPositions;   
import org.jfree.chart.axis.NumberAxis;   
import org.jfree.chart.demo.BarChartDemo1;
import org.jfree.chart.labels.StandardCategorySeriesLabelGenerator;   
import org.jfree.chart.plot.CategoryPlot;   
import org.jfree.chart.plot.PlotOrientation;   
import org.jfree.chart.renderer.category.BarRenderer;   
import org.jfree.data.category.CategoryDataset;   
import org.jfree.data.category.DefaultCategoryDataset;   
import org.jfree.ui.ApplicationFrame;   
import org.jfree.ui.RefineryUtilities;

public class GenerateJpg {
		 
		 private static CategoryDataset createDataset() {   
		   String s = "每日PV";   
		   String s1 = "每日IP数";   
		   String s2 = "注册用户数";   
		   String s3 = "A网站";   
		   String s4 = "B网站";   
		   String s5 = "C网站";   
		   String s6 = "D网站";   
		   String s7 = "E网站";   
		   DefaultCategoryDataset defaultcategorydataset = new DefaultCategoryDataset();   
		   defaultcategorydataset.addValue(1.0D, s, s3);   
		   defaultcategorydataset.addValue(4D, s, s4);   
		   defaultcategorydataset.addValue(3D, s, s5);   
		   defaultcategorydataset.addValue(5D, s, s6);   
		   defaultcategorydataset.addValue(5D, s, s7);   
		   defaultcategorydataset.addValue(5D, s1, s3);   
		   defaultcategorydataset.addValue(7D, s1, s4);   
		   defaultcategorydataset.addValue(6D, s1, s5);   
		   defaultcategorydataset.addValue(8D, s1, s6);   
		   defaultcategorydataset.addValue(4D, s1, s7);   
		   defaultcategorydataset.addValue(4D, s2, s3);   
		   defaultcategorydataset.addValue(3D, s2, s4);   
		   defaultcategorydataset.addValue(2D, s2, s5);   
		   defaultcategorydataset.addValue(3D, s2, s6);   
		   defaultcategorydataset.addValue(6D, s2, s7);   
		   return defaultcategorydataset;   
		 }   
		 
		 private static JFreeChart createChart(CategoryDataset categorydataset) {   
		   JFreeChart jfreechart = ChartFactory.createBarChart("Bar Chart Demo 1", "网站", "数值",   
		       categorydataset, PlotOrientation.VERTICAL, true, true, false);   
		   CategoryPlot categoryplot = (CategoryPlot) jfreechart.getPlot();   
		   categoryplot.setDomainGridlinesVisible(true);   
		   categoryplot.setRangeCrosshairVisible(true);   
		   categoryplot.setRangeCrosshairPaint(Color.blue);   
		   NumberAxis numberaxis = (NumberAxis) categoryplot.getRangeAxis();   
		   numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());   
		   BarRenderer barrenderer = (BarRenderer) categoryplot.getRenderer();   
		   barrenderer.setBaseItemLabelFont(new Font("宋体", Font.PLAIN, 12));   
		   barrenderer.setSeriesItemLabelFont(1, new Font("宋体", Font.PLAIN, 12));   
		 
		   CategoryAxis domainAxis = categoryplot.getDomainAxis();   
		 
		   /*------设置X轴坐标上的文字-----------*/  
		   domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));   
		 
		   /*------设置X轴的标题文字------------*/  
		   domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));   
		 
		   /*------设置Y轴坐标上的文字-----------*/  
		   numberaxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12));   
		 
		   /*------设置Y轴的标题文字------------*/  
		   numberaxis.setLabelFont(new Font("黑体", Font.PLAIN, 12));   
		 
		   /*------这句代码解决了底部汉字乱码的问题-----------*/  
		   jfreechart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12));   
		      
		   barrenderer.setDrawBarOutline(false);   
		   GradientPaint gradientpaint = new GradientPaint(0.0F, 0.0F, Color.blue, 0.0F, 0.0F, new Color(   
		       0, 0, 64));   
		   GradientPaint gradientpaint1 = new GradientPaint(0.0F, 0.0F, Color.green, 0.0F, 0.0F,   
		       new Color(0, 64, 0));   
		   GradientPaint gradientpaint2 = new GradientPaint(0.0F, 0.0F, Color.red, 0.0F, 0.0F, new Color(   
		       64, 0, 0));   
		    barrenderer.setSeriesPaint(0, gradientpaint);   
		    barrenderer.setSeriesPaint(1, gradientpaint1);   
		    barrenderer.setSeriesPaint(2, gradientpaint2);   
		    barrenderer.setLegendItemToolTipGenerator(new StandardCategorySeriesLabelGenerator(   
		        "Tooltip: {0}"));   
		    CategoryAxis categoryaxis = categoryplot.getDomainAxis();   
		    categoryaxis.setCategoryLabelPositions(CategoryLabelPositions   
		        .createUpRotationLabelPositions(0.52359877559829882D));   
		    return jfreechart;   
		  }   
		   
		  
		  public static void main(String args[]) throws IOException {   
		        ChartUtilities.saveChartAsJPEG( 
	                    new File("c://a.jpg"), GenerateJpg.createChart(GenerateJpg.createDataset()), 500, 500 ); 
		  }   
}

 

评论

4 楼 TeddyWang 2011-03-07  

https://login.huawei.com/login/?redirect=http%3A%2F%2F3ms.huawei.com%2F3ms%2F&lang=en&msg=1&v=v3.33

3 楼 TeddyWang 2011-01-27  

IY5PM5DI

2 楼 TeddyWang 2011-01-24  

何枫abc 写道

兄弟你用的也是jfreechart1.0.13是吧!!!你那代码能跑起来吗???你这样很伤人啊!!!
   barrenderer.setLegendItemToolTipGenerator(new StandardCategorySeriesLabelGenerator(    
                "Tooltip: {1}"));    0改1啊!这样才能跑吧!!!

我还真不骗你，我已经忘记是什么版本了，但是我当时的需求和这个比较像，我照着这个做了一个……

1 楼 何枫abc 2010-12-14  

兄弟你用的也是jfreechart1.0.13是吧!!!你那代码能跑起来吗???你这样很伤人啊!!!
   barrenderer.setLegendItemToolTipGenerator(new StandardCategorySeriesLabelGenerator(    
                "Tooltip: {1}"));    0改1啊!这样才能跑吧!!!