java做曲線圖柱狀圖數(shù)據(jù)統(tǒng)計培訓資料

1、Good is good, but better carries it.精益求精，善益求善。java做曲線圖柱狀圖數(shù)據(jù)統(tǒng)計-如何引用jar包project-projectproperties-左側(cè)選擇path-右側(cè)選擇requiredlibraries-add-archives,然后找到你要導入的包,點擊OK即可JFREECHARTDOCUMENTJFreeChart核心對象類介紹類名類的作用以及簡單描述JFreeChart圖表對象，任何類型的圖表的最終表現(xiàn)形式都是在該對象進行一些屬性的定制。JFreeChart引擎本身提供了一個工廠類用于創(chuàng)建不同類型的圖表對象XXXXXDataset數(shù)據(jù)集對

2、象，用于提供顯示圖表所用的數(shù)據(jù)。根據(jù)不同類型的圖表對應著很多類型的數(shù)據(jù)集對象類XXXXXPlot圖表區(qū)域?qū)ο螅旧线@個對象決定著什么樣式的圖表，創(chuàng)建該對象的時候需要Axis、Renderer以及數(shù)據(jù)集對象的支持XXXXXAxis用于處理圖表的兩個軸：縱軸和橫軸XXXXXRenderer負責如何顯示一個圖表對象XXXXXURLGenerator用于生成Web圖表中每個項目的鼠標點擊鏈接XXXXXToolTipGenerator用于生成圖象的幫助提示，不同類型圖表對應不同類型的工具提示類下面以柱狀圖和餅圖以及折線圖為例，介紹圖形創(chuàng)建方法。柱狀圖org.jfree.chart.ChartFacto

3、ry這個工廠類有createBarChart、createStackedBarChart、createBarChart3D、createStackedBarChart3D，這幾個工廠方法創(chuàng)建不同類型的柱狀圖，比較重要的是PlotOrientation.VERTICAL讓平行柱垂直顯示，而PlotOrientation.HORIZONTAL則讓平行柱水平顯示。對柱狀圖影響較大的幾個類包括：org.jfree.chart.axis.CategoryAxis、org.jfree.chart.axis.ValueAxis、org.jfree.chart.renderer.BarRenderer、org

4、.jfree.chart.renderer.BarRenderer3D。具體實現(xiàn)步驟：創(chuàng)建用于圖形生成所要的數(shù)據(jù)集對象。CategoryDatasetdataset=DatasetUtilities.createCategoryDataset(rowKeys,columnKeys,data)；其中：rowKeys表示X軸數(shù)據(jù)，columnKeys表示Y軸數(shù)據(jù)，data表示填充柱狀圖所要的實際數(shù)據(jù)（來自于數(shù)據(jù)庫）。創(chuàng)建圖形對象。JFreeChartchart=ChartFactory.createBarChart3D(標題,/圖形的標題null，/X軸標題null，/Y軸標題dataset，/數(shù)

5、據(jù)PlotOrientation.VERTICAL,，/圖表方向true，/是否顯示圖例false，/啟用熱鍵false)/啟用超鍵接createBarChart3D方法是ChartFactory工廠類里的一個方法，用于3D柱狀圖的生成，該類繼承自JFreeChart。設置圖形顯示的屬性a)ValueAxis類，設置柱到圖上下邊的距離。實現(xiàn)方法是：ValueAxisrangeAxis=plot.getRangeAxis();設置最高的一個柱與圖片頂端的距離：rangeAxis.setUpperMargin(0.15)設置最低的一個柱與圖片底端的距離：rangeAxis.setLowerMarg

6、in(0.15)b）org.jfree.chart.renderer.BarRenderer3D類，設置圖形上顯示的數(shù)值。實現(xiàn)方法如下：BarRenderer3Drenderer=newBarRenderer3D();renderer.setBaseOutlinePaint(Color.BLACK);設置Wall的顏色：renderer.setWallPaint(Color.gray);設置每個柱的顏色：renderer.setSeriesPaint(0,newColor(0,0,255);renderer.setSeriesPaint(1,newColor(0,100,255);render

7、er.setSeriesPaint(2,Color.GREEN);設置每個柱的Outline顏色renderer.setSeriesOutlinePaint(0,Color.BLACK);renderer.setSeriesOutlinePaint(1,Color.BLACK);renderer.setSeriesOutlinePaint(2,Color.BLACK);設置每個地區(qū)所包含的平行柱之間的距離renderer.setItemMargin(0.1);顯示每個柱的數(shù)值，并修改該數(shù)值的字體屬性renderer.setItemLabelGenerator(newStandardCatego

8、ryItemLabelGenerator();renderer.setItemLabelFont(newFont(黑體,Font.PLAIN,12);renderer.setItemLabelsVisible(true);為圖形加入超連接renderer.setItemURLGenerator(newStandardCategoryURLGenerator();renderer.setToolTipGenerator(newStandardCategoryToolTipGenerator();柱狀圖DEMO:packagecom.cons.jfreechart;importjava.awt.C

9、olor;importjava.io.File;importjava.io.FileOutputStream;importorg.jfree.chart.ChartFactory;importorg.jfree.chart.ChartPanel;importorg.jfree.chart.ChartRenderingInfo;importorg.jfree.chart.ChartUtilities;importorg.jfree.chart.JFreeChart;importorg.jfree.chart.axis.NumberAxis3D;importorg.jfree.chart.enti

10、ty.StandardEntityCollection;importorg.jfree.chart.plot.CategoryPlot;importorg.jfree.chart.plot.PlotOrientation;importorg.jfree.chart.plot.XYPlot;importorg.jfree.chart.renderer.category.BarRenderer;importorg.jfree.chart.renderer.category.BarRenderer3D;importorg.jfree.chart.renderer.xy.XYBarRenderer;i

11、mportorg.jfree.chart.renderer.xy.XYItemRenderer;importorg.jfree.data.category.CategoryDataset;importorg.jfree.data.category.DefaultCategoryDataset;importorg.jfree.ui.ApplicationFrame;importorg.jfree.ui.RefineryUtilities;publicclassBarChartDemoextendsApplicationFramepublicBarChartDemo()super();/*獲取一個

12、演示用的簡單數(shù)據(jù)集對象*return*/privatestaticCategoryDatasetgetDataSet()DefaultCategoryDatasetdataset=newDefaultCategoryDataset();dataset.addValue(100,null,蘋果);dataset.addValue(200,null,梨子);dataset.addValue(300,null,葡萄);dataset.addValue(400,null,香蕉);dataset.addValue(500,null,荔枝);returndataset;/*獲取一個演示用的組合數(shù)據(jù)集對象*

13、return*/privatestaticCategoryDatasetgetDataSet2()DefaultCategoryDatasetdataset=newDefaultCategoryDataset();dataset.addValue(100,北京,蘋果);dataset.addValue(100,上海,蘋果);dataset.addValue(100,廣州,蘋果);dataset.addValue(200,北京,梨子);dataset.addValue(200,上海,梨子);dataset.addValue(200,廣州,梨子);dataset.addValue(300,北京,葡

14、萄);dataset.addValue(300,上海,葡萄);dataset.addValue(300,廣州,葡萄);dataset.addValue(400,北京,香蕉);dataset.addValue(400,上海,香蕉);dataset.addValue(400,廣州,香蕉);dataset.addValue(500,北京,荔枝);dataset.addValue(500,上海,荔枝);dataset.addValue(500,廣州,荔枝);returndataset;/*paramargs*/publicstaticvoidmain(Stringargs)CategoryDatase

15、tdataset=getDataSet2();JFreeChartchart=ChartFactory.createBarChart3D(水果產(chǎn)量圖,/圖表標題水果,/目錄軸的顯示標簽產(chǎn)量,/數(shù)值軸的顯示標簽dataset,/數(shù)據(jù)集PlotOrientation.VERTICAL,/圖表方向：水平、垂直true,/是否顯示圖例(對于簡單的柱狀圖必須是false)false,/是否生成工具false/是否生成URL鏈接);CategoryPlotplot=chart.getCategoryPlot();BarRenderer3Drenderer3D=(BarRenderer3D)plot.get

16、Renderer();/BarRenderer3Drenderer3D=newBarRenderer3D();renderer3D.setSeriesPaint(0,Color.ORANGE);/設置柱子的顏色renderer3D.setSeriesPaint(1,Color.RED);renderer3D.setSeriesPaint(2,Color.BLACK);/NumberAxis3DnumberAxis3D=(NumberAxis3D)plot.getRangeAxis();/numberAxis3D.setStandardTickUnits(NumberAxis3D.createI

17、ntegerTickUnits();ChartPanelchartPanel=newChartPanel(chart);chartPanel.setPreferredSize(newjava.awt.Dimension(500,270);Filefos_jpg=null;FileOutputStreamoutputStream=null;ChartRenderingInfoinfo=newChartRenderingInfo(newStandardEntityCollection();tryfos_jpg=newFile(D:fruite.jpg);outputStream=newFileOu

18、tputStream(D:fruite1.jpg);ChartUtilities.saveChartAsJPEG(fos_jpg,chart,500,270);ChartUtilities.writeChartAsJPEG(outputStream,chart,500,270);outputStream.close();catch(Exceptione)/TODO:handleexceptionBarChartDemobarChartDemo=newBarChartDemo();barChartDemo.pack();barChartDemo.add(chartPanel);RefineryU

19、tilities.centerFrameOnScreen(barChartDemo);barChartDemo.setVisible(true);注意：3D的柱狀圖和2D的柱狀圖做法是一樣的，如果純粹畫圖就不要繼承ApplicationFrame2）餅圖具體實現(xiàn)步驟：1）創(chuàng)建用于圖形生成所要的數(shù)據(jù)集對象。首先實例化類DefaultPieDatasetdataset=newDefaultPieDataset()。然后利用DefaultPieDataset類提供的setValue（value1,value2）方法，把從數(shù)據(jù)庫里提取的數(shù)據(jù)存入DefaultPieDataset對象。其中value1是

20、數(shù)據(jù)名稱、value2是數(shù)據(jù)值。2）創(chuàng)建圖形對象。首先實例化JFreeChartchart=ChartFactory.createPieChart3D(title,dataset,true,true,false)createPieChart3D方法是用于餅圖生成的主要方法。其中title代表圖形的標題、dataset就是DefaultPieDataset對象的實例。3）設置圖形顯示的屬性。Stringfilename=ServletUtilities.saveChartAsPNG(jFreeChart,700,450,info,session);ChartUtilities.writeImag

21、eMap(pw,filename,info);pw.flush()saveChartAsPNG方法在ServletUtilities工廠類定義完成。主要用于把圖形對象JFreeChart以圖片的形式保存。其中的jFreeChart就是JFreeChart對象的實例。該方法返回一個文件名。writeImageMap（pw,filename,info）方法用于把保存的圖片文件以字節(jié)流的形式寫入用戶界面。其中pw是java.io包的PrintWriter類的實例對象，該對象創(chuàng)建一個圖形輸出流。Filename是輸出圖片的文件名。該文件名來自ServletUtilities.saveChartAsPN

22、G方法創(chuàng)建。參數(shù)info用于圖形信息的顯示。用ChartRenderingInfoinfo=newChartRenderingInfo(newStandardEntityCollection()創(chuàng)建。最后輸出完成圖形，調(diào)用pw.flush()方法關閉IO流。packagecom.cons.jfreechart;importjava.awt.Color;importjava.awt.Font;importjava.io.*;importorg.jfree.data.general.DefaultPieDataset;importorg.jfree.chart.*;importorg.jfree.

23、chart.plot.PiePlot3D;publicclassPieChartDemo/*獲取一個演示用的簡單數(shù)據(jù)集對象*return*/privatestaticDefaultPieDatasetgetDataSet()DefaultPieDatasetdataset=newDefaultPieDataset();dataset.setValue(蘋果,100);dataset.setValue(梨子,200);dataset.setValue(葡萄,300);dataset.setValue(香蕉,400);dataset.setValue(荔枝,500);returndataset;/

24、*paramargs*/publicstaticvoidmain(Stringargs)DefaultPieDatasetdata=getDataSet();JFreeChartchart=ChartFactory.createPieChart3D(水果產(chǎn)量圖,/圖表標題data,true,/是否顯示圖例false,false);PiePlot3DpiePlot3D=(PiePlot3D)chart.getPlot();/piePlot3D.setLabelGap(0.02D);/piePlot3D.setCircular(true);/設置是否以圓型來顯示piePlot3D.setLabel

25、Font(newFont(SansSerif,3,12);/設置字體piePlot3D.setSectionOutlinePaint(Color.BLACK);/設置輪廓線顏色/piePlot3D.setSectionOutlineStroke(piePlot3D.DEFAULT_LABEL_OUTLINE_STROKE);piePlot3D.setSectionOutlinesVisible(false);/piePlot3D.setNoDataMessage(Nodataavailable);/寫圖表對象到文件，參照柱狀圖生成源碼Filefile=newFile(D:/pieFruite.

26、jpg);tryChartUtilities.saveChartAsJPEG(file,chart,500,270);catch(IOExceptione)/TODOAuto-generatedcatchblocke.printStackTrace();3）折線圖折線圖的dataset兩種CatagoryDataset接口(具體實現(xiàn)類是DefaultCategoryDataset),XYDataset接口體實現(xiàn)步驟：首先實例化類XYSeriesfirdtSeries=newXYSeries(“線的名稱”);然后利用XYSeries類提供的add（value1,value2）方法，把從數(shù)據(jù)庫里提

27、取的數(shù)據(jù)存入XYSeries對象。其中value1是數(shù)據(jù)名稱、value2是數(shù)據(jù)值。然后實例化XYSeriesCollectioncollection=newXYSeriesCollection();最后返回collection創(chuàng)建圖形對象。/createthechart.JFreeChartchart=ChartFactory.createXYLineChart(title,/charttitle(圖表標題)X,/xaxislabel(橫坐標名稱)Y,/yaxislabel(縱坐標名稱)dataset,/data(數(shù)據(jù))PlotOrientation.VERTICAL,/圖表方向（水平、垂直

28、）true,/includelegend(是否顯現(xiàn)圖例)true,/tooltipstrue/urls);保存顯示圖片fileName=ServletUtilities.saveChartAsJPEG(chart,500,270,info,session);ChartUtilities.writeImageMap(print,fileName,info,true);print.flush();注：info,ChartRenderingInfoinfo=newChartRenderingInfo(newStandardEntityCollection();print,PrintWriter例子：

29、/*-*LineChartDemo2.java*-*(C)Copyright2002-2005,byObjectRefineryLimited.*/packagecom.volcano.eruption.tsas.util;importjava.awt.Color;importjava.io.File;importjava.io.FileNotFoundException;importjava.io.FileOutputStream;importjava.io.IOException;importjava.io.PrintStream;importjava.io.PrintWriter;imp

30、ortjava.util.ArrayList;importjava.util.List;importjavax.servlet.http.HttpSession;importjavax.swing.JPanel;importorg.jfree.chart.ChartFactory;importorg.jfree.chart.ChartPanel;importorg.jfree.chart.ChartRenderingInfo;importorg.jfree.chart.ChartUtilities;importorg.jfree.chart.JFreeChart;importorg.jfree

31、.chart.axis.NumberAxis;importorg.jfree.chart.entity.StandardEntityCollection;importorg.jfree.chart.plot.PlotOrientation;importorg.jfree.chart.plot.XYPlot;importorg.jfree.chart.renderer.xy.XYLineAndShapeRenderer;importorg.jfree.chart.servlet.ServletUtilities;importorg.jfree.data.xy.XYDataset;importor

32、g.jfree.data.xy.XYSeries;importorg.jfree.data.xy.XYSeriesCollection;importorg.jfree.ui.ApplicationFrame;importorg.jfree.ui.RectangleInsets;importorg.jfree.ui.RefineryUtilities;/*Asimpledemonstrationapplicationshowinghowtocreatealinechartusing*datafromanlinkXYDataset.*IMPORTANTNOTE:THISDEMOISDOCUMENT

33、EDINTHEJFREECHARTDEVELOPERGUIDE.*DONOTMAKECHANGESWITHOUTUPDATINGTHEGUIDEALSO!*/publicclassDrawAnalyseLineprivateHttpSessionsession;privatePrintWriterprint;privatestaticStringtitle;privatestaticStringfirstName;privatestaticStringsecondName;privatestaticdoublefirst;privatestaticdoublesecond;/*Createsa

34、newdemo.*paramtitletheframetitle.*/publicDrawAnalyseLine(intindex,doublefirst,doublesecond,HttpSessionsession,PrintWriterprintWriter)/設置調(diào)試信息輸出/*PrintStreamprintStream=System.out;Filefile=newFile(/out.txt);FileOutputStreamoutputStream=null;tryoutputStream=newFileOutputStream(file);catch(FileNotFoundE

35、xceptione)/TODOAuto-generatedcatchblocke.printStackTrace();System.setOut(newPrintStream(outputStream);*/ListtitleList=newArrayList();ListtempList=newArrayList();tempList.add(月度執(zhí)行配方和年配方平均價格比較);tempList.add(月度執(zhí)行配方平均價格);tempList.add(年配方價格);titleList.add(tempList);tempList=newArrayList();tempList.add(月度

36、執(zhí)行配方和年配方總成本比較);tempList.add(月度執(zhí)行配方總成本);tempList.add(年配方總成本);titleList.add(tempList);tempList=newArrayList();tempList.add(葉組和卷煙的總糖比較);tempList.add(葉組);tempList.add(卷煙);titleList.add(tempList);tempList=newArrayList();tempList.add(葉組和卷煙的總煙堿比較);tempList.add(葉組);tempList.add(卷煙);titleList.add(tempList);t

37、empList=newArrayList();tempList.add(葉組和卷煙的糖堿比較);tempList.add(葉組);tempList.add(卷煙);titleList.add(tempList);this.title=(ArrayList)titleList.get(index).get(0).toString();this.firstName=(ArrayList)titleList.get(index).get(1).toString();this.secondName=(ArrayList)titleList.get(index).get(2).toString();th

38、is.first=first;this.second=second;this.session=session;this.print=printWriter;/*Createsasampledataset.*returnasampledataset.*/privatestaticXYDatasetcreateDataset()XYSeriesfirdtSeries=newXYSeries(firstName);for(inti=0;first!=null&ifirst.length;i+)firdtSeries.add(double)i+1,firsti);XYSeriessecondSerie

39、s=newXYSeries(secondName);for(inti=0;second!=null&isecond.length;i+)secondSeries.add(double)i+1,secondi);XYSeriesCollectioncollection=newXYSeriesCollection();collection.addSeries(firdtSeries);collection.addSeries(secondSeries);returncollection;/*Createsachart.*paramdatasetthedataforthechart.*returna

40、chart.*/privatestaticJFreeChartcreateChart(XYDatasetdataset)/createthechart.JFreeChartchart=ChartFactory.createXYLineChart(title,/charttitle(圖表標題)X,/xaxislabel(橫坐標名稱)Y,/yaxislabel(縱坐標名稱)dataset,/data(數(shù)據(jù))PlotOrientation.VERTICAL,/圖表方向（水平、垂直）true,/includelegend(是否顯現(xiàn)圖例)true,/tooltipstrue/urls);/NOWDOSO

41、MEOPTIONALCUSTOMISATIONOFTHECHART.chart.setBackgroundPaint(Color.white);/getareferencetotheplotforfurthercustomisation.XYPlotplot=(XYPlot)chart.getPlot();plot.setBackgroundPaint(Color.lightGray);/設定圖表背景顏色plot.setAxisOffset(newRectangleInsets(5D,5D,5D,5D);plot.setDomainGridlinePaint(Color.white);/設定網(wǎng)

42、格線的顏色(縱向)plot.setRangeGridlinePaint(Color.white);/設定網(wǎng)格線的顏色(橫向)XYLineAndShapeRendererrenderer=(XYLineAndShapeRenderer)plot.getRenderer();renderer.setShapesVisible(true);renderer.setShapesFilled(true);/changetheautotickunitselectiontointegerunitsonly.NumberAxisrangeAxis=(NumberAxis)plot.getRangeAxis()

43、;rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits();/OPTIONALCUSTOMISATIONCOMPLETED.returnchart;/*Createsapanelforthedemo(usedbySuperDemo.java).*returnApanel.*/publicstaticJPanelcreateDemoPanel()JFreeChartchart=createChart(createDataset();returnnewChartPanel(chart);publicStringcreate

44、Img()StringfileName=null;XYDatasetdataset=createDataset();JFreeChartchart=createChart(dataset);/*ChartPanelchartPanel=newChartPanel(chart);chartPanel.setPreferredSize(newjava.awt.Dimension(500,270);setContentPane(chartPanel);*/Filefile=newFile(realPath+/images/+fileName+.jpg);ChartRenderingInfoinfo=

45、newChartRenderingInfo(newStandardEntityCollection();try/ChartUtilities.saveChartAsJPEG(file,chart,500,270);fileName=ServletUtilities.saveChartAsJPEG(chart,500,270,info,session);ChartUtilities.writeImageMap(print,fileName,info,true);print.flush();catch(IOExceptione)e.printStackTrace();fileName=null;r

46、eturnfileName;/*Startingpointforthedemonstrationapplication.*paramargsignored.*/publicstaticvoidmain(Stringargs)/*LineChartDemo2demo=newLineChartDemo2(葉組和卷煙糖堿比);demo.pack();RefineryUtilities.centerFrameOnScreen(demo);demo.setVisible(true);*/Web.xmlDisplayChartorg.jfree.chart.servlet.DisplayChartDisp

47、layChart/servlet/DisplayChartJSP頁面DrawAnalyseLinetotalAnalyseLine=newDrawAnalyseLine(1,totalMonthFormual,totalYearFormual,session,newPrintWriter(out);StringtotalFileName=totalAnalyseLine.createImg();StringtotalURL=request.getContextPath()+/servlet/DisplayChart?filename=+totalFileName;imgsrc=border=0

48、usemap=jfreechart折線圖（2）XY坐標對應點HYPERLINKhttp:/13480./blog/lm=0&t=1&c=fks_081064085083080069093087074066082084089070081087082報表圖表2007-12-1319:03:30閱讀442評論0字號：大中小折線圖的dataset兩種CatagoryDataset接口(具體實現(xiàn)類是DefaultCategoryDataset),XYDataset接口說說XYDataset：XY坐標對應點importjava.io.FileOutputStream;importjava.io.IOExc

49、eption;importjava.awt.Color;importjava.awt.*;importjava.awt.event.*;importjavax.swing.*;importorg.jfree.chart.*;importorg.jfree.chart.plot.PlotOrientation;importorg.jfree.data.category.CategoryDataset;importorg.jfree.data.xy.*;importorg.jfree.data.category.DefaultCategoryDataset;importorg.jfree.ui.A

50、pplicationFrame;importorg.jfree.chart.plot.XYPlot;importorg.jfree.chart.axis.NumberAxis;importorg.jfree.chart.renderer.xy.XYLineAndShapeRenderer;publicclassBarChartDemo2extendsApplicationFramepublicBarChartDemo2(Strings)super(s);/privatestaticCategoryDatasetcreateDataset()privatestaticXYDatasetcreat

51、eDataset()/DefaultCategoryDatasetdefaultcategorydataset=newDefaultCategoryDataset();XYSeriesxyseries=newXYSeries(First);/先產(chǎn)生XYSeries對象xyseries.add(1.0D,1.0D);xyseries.add(2D,4D);xyseries.add(3D,3D);xyseries.add(4D,5D);xyseries.add(5D,5D);xyseries.add(6D,7D);xyseries.add(7D,7D);xyseries.add(8D,8D);XYSeriesxyseries1=newXYSeries(Second);xyseries1.add(1.0D,5D);xyseries1.add