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📄 jfreechart.txt

📁 JFreeChart介绍及经典入门资料（绝对一手）
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123 
      vCategoryPlot.setDomainGridlinesVisible(true);
     }
    }
    catch(Exception e)
    {}    
    break;
   case 13:
    vFreeChart=ChartFactory.createLineChart3D(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getCategoryDataset(),PlotOrientation.VERTICAL,true,false,false);
    try
    {
     vCategoryPlot=vFreeChart.getCategoryPlot();
     if(vCategoryPlot!=null)
     {
      vLineRenderer3D=new LineRenderer3D();
      vLineRenderer3D.setBaseOutlinePaint(Color.GRAY);
      if(bRender)
      {       
       //设置线面颜色
       if(strCategoryArray.length>0)
       {
        for(int iIndex=0;iIndex<strCategoryArray.length;iIndex++)
        {
         vLineRenderer3D.setSeriesPaint(iIndex,new Color(0,0+iIndex*(255/strCategoryArray.length),255));
         vLineRenderer3D.setSeriesFillPaint(iIndex,new Color(0,0+iIndex*(255/strCategoryArray.length),255));
         vLineRenderer3D.setSeriesOutlinePaint(0,Color.BLACK);
        }
       }
       //设置X轴、Y轴的显示位置
       vCategoryPlot.setDomainAxisLocation(AxisLocation.TOP_OR_RIGHT);
       vCategoryPlot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);
      }
      vCategoryPlot.setRenderer(vLineRenderer3D);
      //背景表格线
      vCategoryPlot.setDomainGridlinesVisible(true);
     }
    }
    catch(Exception e)
    {}
    break;
   case 14:
    vFreeChart=ChartFactory.createGanttChart(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getIntervalCategoryDataset(),true,false,false);
    break;
   case 15:
    vFreeChart=ChartFactory.createWaterfallChart(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getCategoryDataset(),PlotOrientation.VERTICAL,true,false,false);
    try
    {
     vCategoryPlot=vFreeChart.getCategoryPlot();
     if(vCategoryPlot!=null)
     {
      vWaterfallBarRenderer=new WaterfallBarRenderer();
      vWaterfallBarRenderer.setBaseOutlinePaint(Color.GRAY);
      if(bRender)
      {       
       //设置柱颜色
       if(strCategoryArray.length>0)
       {
        for(int iIndex=0;iIndex<strCategoryArray.length;iIndex++)
        {
         vWaterfallBarRenderer.setSeriesPaint(iIndex,new Color(0,0+iIndex*(255/strCategoryArray.length),255));
         vWaterfallBarRenderer.setSeriesFillPaint(iIndex,new Color(0,0+iIndex*(255/strCategoryArray.length),255));
         vWaterfallBarRenderer.setSeriesOutlinePaint(0,Color.BLACK);
        }
       }
       //设置X轴、Y轴的显示位置
       vCategoryPlot.setDomainAxisLocation(AxisLocation.TOP_OR_RIGHT);
       vCategoryPlot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);
      }
      vCategoryPlot.setRenderer(vWaterfallBarRenderer);
      //背景表格线
      vCategoryPlot.setDomainGridlinesVisible(true);
      //设置区域透明度
      vCategoryPlot.setForegroundAlpha(0.5f);
     }
    }
    catch(Exception e)
    {}
    break;
   case 16:
    vFreeChart=ChartFactory.createPolarChart(strFreeChartInfo,this.getXYDataset(),true,false,false);
    break;
   case 17:
    vFreeChart=ChartFactory.createScatterPlot(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getXYDataset(),PlotOrientation.VERTICAL,true,false,false);
    break;
   case 18:
    vFreeChart=ChartFactory.createXYBarChart(strFreeChartInfo,strFreeChartXInfo,false,strFreeChartYInfo,this.getIntervalXYDataset(),PlotOrientation.VERTICAL,true,false,false);
    break;
   case 19:
    vFreeChart=ChartFactory.createXYAreaChart(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getXYDataset(),PlotOrientation.VERTICAL,true,false,false);
    break;
   case 20:
    vFreeChart=ChartFactory.createStackedXYAreaChart(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getTableXYDataset(),PlotOrientation.VERTICAL,true,false,false); 
    break;
   case 21:
    vFreeChart=ChartFactory.createXYLineChart(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getXYDataset(),PlotOrientation.VERTICAL,true,false,false);
    try
    {
     vXYPlot=(XYPlot)vFreeChart.getXYPlot();
     if(vXYPlot!=null)
     {
      vXYItemRenderer=vXYPlot.getRenderer();
      vXYItemRenderer.setBaseOutlinePaint(Color.GRAY);
      if(bRender)
      {       
       //设置线面颜色
       if(strItemArray.length>0)
       {
        for(int iIndex=0;iIndex<strItemArray.length;iIndex++)
        {
         vXYItemRenderer.setSeriesPaint(iIndex,new Color(0,0+iIndex*(255/strItemArray.length),255));
         vXYItemRenderer.setSeriesOutlinePaint(0,Color.BLACK);
        }
       }       
       //设置X轴、Y轴的显示位置
       vXYPlot.setDomainAxisLocation(AxisLocation.TOP_OR_RIGHT);
       vXYPlot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);
      }
      //设置线条颜色
      vXYItemRenderer.setPaint(new Color(0,100,255));
      vXYPlot.setRenderer(vXYItemRenderer);
      //背景表格线
      vXYPlot.setDomainGridlinesVisible(true);
     }
    }
    catch(Exception e)
    {}    
    break;
   case 22:
    vFreeChart=ChartFactory.createXYStepChart(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getXYDataset(),PlotOrientation.VERTICAL,true,false,false);
    break;
   case 23:
    vFreeChart=ChartFactory.createXYStepAreaChart(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getXYDataset(),PlotOrientation.VERTICAL,true,false,false);
    break;
   case 24:
    vFreeChart=ChartFactory.createTimeSeriesChart(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getXYDataset(),true,false,false);
    try
    {
     vXYPlot=(XYPlot)vFreeChart.getXYPlot();
     if(vXYPlot!=null)
     {
      vXYItemRenderer=vXYPlot.getRenderer();
      vXYItemRenderer.setBaseOutlinePaint(Color.GRAY);
      if(bRender)
      {
       //设置线面颜色
       if(strItemArray.length>0)
       {
        for(int iIndex=0;iIndex<strItemArray.length;iIndex++)
        {
         vXYItemRenderer.setSeriesPaint(iIndex,new Color(0,0+iIndex*(255/strItemArray.length),255));
         vXYItemRenderer.setSeriesOutlinePaint(0,Color.BLACK);
        }
       }
       //设置X轴、Y轴的显示位置
       vXYPlot.setDomainAxisLocation(AxisLocation.TOP_OR_RIGHT);
       vXYPlot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);
       
       //设置线条颜色
       vXYItemRenderer.setPaint(new Color(0,100,255));
       vXYPlot.setRenderer(vXYItemRenderer);
      }      
      //背景表格线
      vXYPlot.setDomainGridlinesVisible(true);
      
      SimpleDateFormat vSimpleDateFormat=null;
      if(strTimeAxis.equals("Hour"))
      {
       vSimpleDateFormat=new SimpleDateFormat("dd日HH点");
      }
      else      
      {      
       vSimpleDateFormat=new SimpleDateFormat("MM月dd日");
      }
           vDateAxis=(DateAxis)vXYPlot.getDomainAxis();
          vDateAxis.setDateFormatOverride(vSimpleDateFormat);
     }
    }
    catch(Exception e)
    {}
    break;
   case 25:
    vFreeChart=ChartFactory.createCandlestickChart(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getOHLCDataset(),true);
    break;
   case 26:
    vFreeChart=ChartFactory.createHighLowChart(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getOHLCDataset(),true);
    break;
   case 27:
    vFreeChart=ChartFactory.createHighLowChart(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getOHLCDataset(),true);
    break;
   case 28:
    vFreeChart=ChartFactory.createSignalChart(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getSignalsDataset(),true);
    break;
   case 29:
    vFreeChart=ChartFactory.createBubbleChart(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getXYZDataset(),PlotOrientation.VERTICAL,true,false,false);
    break;
   case 30:
    vFreeChart=ChartFactory.createHistogram(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getIntervalXYDataset(),PlotOrientation.VERTICAL,true,false,false);
    break;
   case 31:
    vFreeChart=ChartFactory.createBoxAndWhiskerChart(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getBoxAndWhiskerXYDataset(),true);
    break;
   case 32:
    vFreeChart=ChartFactory.createWindPlot(strFreeChartInfo,strFreeChartXInfo,strFreeChartYInfo,this.getWindDataset(),true,false,false);
    break;
   case 33:
    vFreeChart=ChartFactory.createWaferMapChart(strFreeChartInfo,this.getWaferMapDataset(),PlotOrientation.VERTICAL,true,false,false);       
    break;
   default:
    vFreeChart=ChartFactory.createPieChart(strFreeChartInfo,this.getPieDataset(),true,false,false);
    break;
  }
  //图表背景颜色
  vFreeChart.setBackgroundPaint(new Color(212,234,243));
 }
 public JFreeChart getChart()
 {
  return this.vFreeChart;
 }
 public void createImageFile(int iWidth,int iHeight,HttpSession session)
 {
  try
  {
   java.util.Date vDate=new java.util.Date(System.currentTimeMillis());
   java.text.SimpleDateFormat vSimpleDateFormat=new SimpleDateFormat("yyyyMMddHHmmss");
   java.util.Date vFileDate=null;
   File[] vFileList=(new File(session.getServletContext().getRealPath("/"))).listFiles();   
   for(int kIndex=0;kIndex<vFileList.length;kIndex++)
   {
    if(vFileList[kIndex].isFile())
    {     
     if(vFileList[kIndex].getName().indexOf(".jpg")!=-1)
     {
      vFileDate=vSimpleDateFormat.parse(vFileList[kIndex].getName().substring(0,vFileList[kIndex].getName().length()-4));
      //十分钟前的临时文件删除
      if(vDate.getTime()-vFileDate.getTime()>60*10*1000)
      {
       vFileList[kIndex].delete();
      }
     }
    }
   }   
   String strTime=vSimpleDateFormat.format(vDate);
   strFileName=session.getServletContext().getRealPath("/")+"\\"+strTime+".jpg";
   ChartUtilities.saveChartAsJPEG(new File(strFileName),100,this.getChart(),iWidth,iHeight);
   strFileName="/"+getApplicationName(session.getServletContext().getRealPath("/"))+"/"+strTime+".jpg";
  }
  catch(Exception e)
  {}
 }
 public String getImageFile()
 {
  return this.strFileName;
 }
 public String getApplicationName(String strRealPath)
 {
  String[] strAppArray=strRealPath.split("\\\\");
  return strAppArray[strAppArray.length-1];
 }
 public boolean getRender()
 {
  return bRender;
 }
 public void setRender(boolean bRender)
 {
  this.bRender=bRender;
 }
 public String getTimeAxis()
 {
  return this.strTimeAxis;
 }
 public void setTimeAxis(String strTimeAxis)
 {
  this.strTimeAxis=strTimeAxis;
 }
}


JSP应用示例

<%@ page contentType="text/html; charset=gb2312"%>
<%@ page import="java.io.*"%>
<jsp:useBean id="FreeChart" scope="session" class="com.function.FreeChart"/>
<head>
<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="Cache-Control" content="no-cache">
<meta http-equiv="Expires" content="0">
</head>
<link rel="stylesheet" type="text/css" href="/defineOA/css/default.css">
<%
 //初始化
 //考虑图形中是否直接链接到统计查询表格
 String strTimeList="";
 String strMultipleTimeList="";
 String strCategoryList="";
 String strData="";
 String strMultipleData="";

 strTimeList="2005-05-01 00:00:00,2005-05-02 05:00:00,2005-05-03 10:00:00,2005-05-04 15:00:00,2005-05-05 20:00:00";
 strMultipleTimeList="2005-05-01 00:00:00,2005-05-02 05:00:00,2005-05-03 10:00:00,2005-05-04 15:00:00,2005-05-05 20:00:00";
 strCategoryList="JSP工作量,Servlet工作量,Bean工作量";
 strData="1,2,3,4,5";
 strMultipleData="1,2,3,4,5#2,3,4,5,6#3,4,5,6,7";
 
 FreeChart.createDataset(strMultipleTimeList,strCategoryList,strMultipleData);
 FreeChart.createDataset(strTimeList,strData);
 FreeChart.setRender(true);
 FreeChart.setTimeAxis("Hour");
 if(request.getParameter("ChartType")==null)
 {
  FreeChart.createChart(1,"默认统计图","时间轴","统计值轴");
 }
 else
 {
  FreeChart.createChart(Integer.parseInt(request.getParameter("ChartType")),"统计图","时间轴","统计值轴");
 }
 FreeChart.createImageFile(800,400,session);

 response.setHeader("Pragma","No-cache");
 response.setDateHeader("Expires",0);
 response.setHeader("Cache-Control","no-cache");
%>
<%
 for(int iIndex=0;iIndex<FreeChart.vChartTypeArray.length;iIndex++)
 {
%>
<input type=button class="GeneralButton" value="<%=FreeChart.vChartTypeArray[iIndex]%>" onclick="window.location='/defineOA/test/chart.jsp?ChartType=<%=iIndex+1%>';">
<%
 }
%>
<br>
<fieldset>
<legend>图表</legend>
<!--class="GeneralImage"-->
<br>
<center>
<table>
  <tr>
    <td style="border:1 solid #3399CC;"><img src="<%=FreeChart.getImageFile()%>"></td>
  </tr>
</table>
</center>
<br>
</fieldset>

也可以将应用继续用Bean封装.
123

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