1 PackageCom.wcy.chart.bar;2 3 Importjavax.servlet.http.HttpSession;4 5 Importorg.jfree.chart.ChartFactory;6 ImportOrg.jfree.chart.JFreeChart;7 Importorg.jfree.chart.plot.PlotOrientation;8 Importorg.jfree.chart.servlet.ServletUtilities;9 ImportOrg.jfree.data.category.CategoryDataset;Ten Importorg.jfree.data.general.DatasetUtilities; One A Public classBarChart3 { - - Public StaticString Genbarchart (HttpSession session)throwsexception{ the Double[] data =New Double[][]{{1320},{720},{830},{400}}; -String[] Rowkeys = {"Apple", "banana", "orange", "pear"}; -String[] Columnkeys = {"Shenzhen"}; -Categorydataset DataSet =Datasetutilities.createcategorydataset (Rowkeys, columnkeys,data); +Jfreechart chart = Chartfactory.createbarchart3d ("Fruit Sales Chart", "Fruit", "sales", -DataSet, Plotorientation.vertical,true,true,true); +String fileName = servletutilities.savechartaspng (chart, 700, 500, session); A returnFileName; at } -}
1<% @pageImport= "Com.wcy.chart.bar.BarChart3"%>2<%@ page language= "java" contenttype= "text/html; Charset=utf-8 "3pageencoding= "UTF-8"%>4<! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "HTTP://WWW.W3.ORG/TR/HTML4/LOOSE.DTD" >567<meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 ">8<title>insert title here</title>9Ten<body> One<% AString FileName =Barchart3.genbarchart (session); -%> - the</body> -2, the use of Jfreechart create by color classification and classification by region fruit Sales report1 PackageCom.wcy.chart.bar;2 3 Importjavax.servlet.http.HttpSession;4 5 Importorg.jfree.chart.ChartFactory;6 ImportOrg.jfree.chart.JFreeChart;7 Importorg.jfree.chart.plot.PlotOrientation;8 Importorg.jfree.chart.servlet.ServletUtilities;9 ImportOrg.jfree.data.category.CategoryDataset;Ten Importorg.jfree.data.general.DatasetUtilities; One A Public classBARCHART4 { - - Public StaticString Genbarchart (HttpSession session)throwsexception{ the Double[] data =New Double[][]{{1390,690,542,630},{529,650,1200,690},{780,450,1300,1120},{890,640,750,500}}; -String[] Rowkeys = {"Apple", "banana", "orange", "pear"}; -String[] Columnkeys = {"Shanghai", "Beijing", "Guizhou", "Guangzhou"}; -Categorydataset DataSet =Datasetutilities.createcategorydataset (rowkeys,columnkeys,data); +Jfreechart chart = Chartfactory.createbarchart3d ("Fruit Sales Chart", "Fruit", "Sales", DataSet, Plotorientation.vertical,true,true,true); -String fileName = servletutilities.savechartaspng (chart, 700, 500, session); + returnFileName; A } at}1<% @pageImport= "Com.wcy.chart.bar.BarChart4"%>2<%@ page language= "java" contenttype= "text/html; Charset=utf-8 "3pageencoding= "UTF-8"%>4<! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "HTTP://WWW.W3.ORG/TR/HTML4/LOOSE.DTD" >567<meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 ">8<title>insert title here</title>9Ten<body> One<% AString FileName =Barchart4.genbarchart (session); -%> - the</body> -3. Create a custom 3D columnar report using Jfreechart1 PackageCom.wcy.chart.bar;2 3 ImportJava.awt.Color;4 5 Importjavax.servlet.http.HttpSession;6 7 Importorg.jfree.chart.ChartFactory;8 ImportOrg.jfree.chart.JFreeChart;9 ImportOrg.jfree.chart.labels.ItemLabelAnchor;Ten Importorg.jfree.chart.labels.ItemLabelPosition; One ImportOrg.jfree.chart.labels.StandardCategoryItemLabelGenerator; A ImportOrg.jfree.chart.plot.CategoryPlot; - Importorg.jfree.chart.plot.PlotOrientation; - ImportOrg.jfree.chart.renderer.category.BarRenderer3D; the Importorg.jfree.chart.servlet.ServletUtilities; - ImportOrg.jfree.data.category.CategoryDataset; - Importorg.jfree.data.general.DatasetUtilities; - ImportOrg.jfree.ui.TextAnchor; + - Public classBarChart5 { + A Public StaticString Genbarchart (HttpSession session)throwsexception{ at Double[] data =New Double[][]{{1299,459,980,470},{590,564,300,1130},{1200,357,910,380},{509,1300,650,810}}; -String[] Rowkeys = {"Apple", "banana", "orange", "pear"}; -String[] Columnkeys = {"Shanghai", "Beijing", "Xiamen", "Guizhou"}; -Categorydataset DataSet =Datasetutilities.createcategorydataset (Rowkeys, columnkeys,data); -Jfreechart chart = Chartfactory.createbarchart3d ("Fruit Sales Chart", "Fruit", "Sales", DataSet, Plotorientation.vertical,true,true,true); - inCategoryplot plot =Chart.getcategoryplot (); - to //set the grid background color + Plot.setbackgroundpaint (color.white); - //set the grid vertical line color the Plot.setdomaingridlinepaint (color.pink); * //Set Grid horizontal color $ Plot.setrangegridlinepaint (color.pink);Panax Notoginseng - //displays the value of each bar and modifies the font properties of the number theBarrenderer3d renderer=NewBarrenderer3d (); +Renderer.setbaseitemlabelgenerator (Newstandardcategoryitemlabelgenerator ()); ARenderer.setbaseitemlabelsvisible (true); the +Renderer.setbasepositiveitemlabelposition (Newitemlabelposition (Itemlabelanchor.outside12, Textanchor.baseline_left)); - Renderer.setitemlabelanchoroffset (10D); $ $ //set the distance between parallel bars -Renderer.setitemmargin (0.4); - the plot.setrenderer (renderer); - WuyiString fileName = servletutilities.savechartaspng (chart, 700, 500, session); the returnFileName; - } Wu}1<% @pageImport= "Com.wcy.chart.bar.BarChart5"%>2<%@ page language= "java" contenttype= "text/html; Charset=utf-8 "3pageencoding= "UTF-8"%>4<! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "HTTP://WWW.W3.ORG/TR/HTML4/LOOSE.DTD" >567<meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 ">8<title>insert title here</title>9Ten<body> One<% AString FileName =Barchart5.genbarchart (session); -%> - the</body> -Statement: This program code himself is only used for learning summary, non-original, if there is infringement, contact me.
Jfreechart of Java reports (second lecture)
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