Java报表之JFreeChart-第3讲.docx

Java报表之JFreeChart-第3讲1.DefaultPieDataset，PiePlot，PiePlot3D 引入javaview plaincopy1. packagecom.xp.chart.pie;2. 3. importjava.awt.Color;4. importjava.awt.Font;5. importjava.io.IOException;6. importjava.text.NumberFormat;7. 8. importjavax.servlet.http.HttpSession;9. 10. importorg.jfree.chart.ChartFactory;11. importorg.jfree.chart.JFreeChart;12. importorg.jfree.chart.labels.StandardPieSectionLabelGenerator;13. importorg.jfree.chart.plot.PiePlot;14. importorg.jfree.chart.servlet.ServletUtilities;15. importorg.jfree.chart.title.TextTitle;16. importorg.jfree.data.general.DefaultPieDataset;17. 18. publicclassPieChart119. publicstaticStringgetPieChart(HttpSessionsession)throwsIOException20. /创建一个默认的饼状图实例21. DefaultPieDatasetdataset=newDefaultPieDataset();22. /往饼状图添加数据23. dataset.setValue(java,18238);24. dataset.setValue(C,10295);25. dataset.setValue(C+,6657);26. dataset.setValue(C#,5493);27. dataset.setValue(Python,4302);28. dataset.setValue(JavaScript,2929);29. 30. /创建一个jfeechart图表31. JFreeChartchart=ChartFactory.createPieChart(编程语言排行,dataset,true,32. true,true);33. /副标题34. chart.addSubtitle(newTextTitle(2016年度);35. /通过图表实例化一个饼图对象36. PiePlotpieplot=(PiePlot)chart.getPlot();37. pieplot.setLabelFont(newFont(宋体,0,11);/设置图表中饼图的字体为11px38. /设置饼图是圆的（true），还是椭圆的（false）；默认为true39. pieplot.setCircular(true);40. /没有数据的时候显示的内容41. pieplot.setNoDataMessage(无数据显示);42. /设置边框的颜色43. pieplot.setBaseSectionOutlinePaint(Color.green);44. StandardPieSectionLabelGeneratorstandarPieIG=newStandardPieSectionLabelGenerator(45. 0:(1.2),NumberFormat.getNumberInstance(),46. NumberFormat.getPercentInstance();47. pieplot.setLabelGenerator(standarPieIG);48. 49. StringfileName=ServletUtilities.saveChartAsPNG(chart,700,500,50. null,session);51. returnfileName;52. 53. 创建一个pieChart1.jsp如下htmlview plaincopy1. 2. 4. 5. 6. 7. 8. Inserttitlehere9. 10. 11. 15. imgsrc=DisplayChart?filename=width=700height=500border=0/16. 17. 显示效果如图2.利用JFreeChart创建普通饼状图报表，并且突出一个javaview plaincopy1. packagecom.xp.chart.pie;2. 3. importjava.awt.Font;4. importjava.text.NumberFormat;5. 6. importjavax.servlet.http.HttpSession;7. 8. importorg.jfree.chart.ChartFactory;9. importorg.jfree.chart.JFreeChart;10. importorg.jfree.chart.labels.StandardPieSectionLabelGenerator;11. importorg.jfree.chart.plot.PiePlot;12. importorg.jfree.chart.servlet.ServletUtilities;13. importorg.jfree.chart.title.TextTitle;14. importorg.jfree.data.general.DefaultPieDataset;15. 16. publicclassPieChart217. 18. publicstaticStringgetPieChart(HttpSessionsession)throwsException19. DefaultPieDatasetdataset=newDefaultPieDataset();20. dataset.setValue(申通快递,8.24);21. dataset.setValue(EMS,12.42);22. dataset.setValue(中通快递,25.99);23. dataset.setValue(圆通快递,53.35);24. dataset.setValue(其他,11.1);25. 26. JFreeChartchart=ChartFactory.createPieChart(各种快递数据饼状图表,dataset,true,true,true);27. 28. /副标题29. chart.addSubtitle(newTextTitle(2016年度);30. 31. PiePlotpieplot=(PiePlot)chart.getPlot();32. pieplot.setLabelFont(newFont(宋体,0,11);33. /设置饼图是圆的（true），还是椭圆的（false）；默认为true34. pieplot.setCircular(true);35. /没有数据的时候显示的内容36. pieplot.setNoDataMessage(无数据显示);37. StandardPieSectionLabelGeneratorstandarPieIG=newStandardPieSectionLabelGenerator(0:(1.2),NumberFormat.getNumberInstance(),NumberFormat.getPercentInstance();38. pieplot.setLabelGenerator(standarPieIG);39. pieplot.setExplodePercent(快递,0.23);40. 41. StringfileName=ServletUtilities.saveChartAsPNG(chart,700,500,null,session);42. 43. returnfileName;44. 45. 显示效果如图3.利用JFreeChart创建3D饼状图报表javaview plaincopy1. packagecom.xp.chart.pie;2. 3. importjava.awt.Font;4. importjava.text.NumberFormat;5. 6. importjavax.servlet.http.HttpSession;7. 8. importorg.jfree.chart.ChartFactory;9. importorg.jfree.chart.JFreeChart;10. importorg.jfree.chart.labels.StandardPieSectionLabelGenerator;11. importorg.jfree.chart.plot.PiePlot;12. importorg.jfree.chart.plot.PiePlot3D;13. importorg.jfree.chart.servlet.ServletUtilities;14. importorg.jfree.chart.title.TextTitle;15. importorg.jfree.data.general.DefaultPieDataset;16. importorg.jfree.util.Rotation;17. 18. publicclassPieChart319. 20. publicstaticStringgetPieChart(HttpSessionsession)throwsException21. DefaultPieDatasetdataset=newDefaultPieDataset();22. dataset.setValue(生活费用,25);23. dataset.setValue(水电气费,23);24. dataset.setValue(城管强拆,25);25. dataset.setValue(医疗事故,24);26. dataset.setValue(其他,3);27. 28. JFreeChartchart=ChartFactory.createPieChart3D(支出类型结构比例图,dataset,29. true,true,true);30. PiePlotpieplot=(PiePlot)chart.getPlot();31. pieplot.setLabelFont(newFont(宋体,0,11);32. /设置饼图是圆的（true），还是椭圆的（false）；默认为true33. pieplot.setCircular(true);34. /没有数据的时候显示的内容35. pieplot.setNoDataMessage(无数据显示);36. StandardPieSectionLabelGeneratorstandarPieIG=newStandardPieSectionLabelGenerator(37. 0:(1.2),NumberFormat.getNumberInstance(),38. NumberFormat.getPercentInstance();39. pieplot.setLabelGenerator(standarPieIG);40. /副标题41. chart.addSubtitle(newTextTitle(2016年度);42. 43. PiePlot3Dpieplot3d=(PiePlot3D)chart.getPlot();44. 45. /设置开始角度46. pieplot3d.setStartAngle(120