用jfreechart画饼图和折线图

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dataset.setValue("苹果",100);
dataset.setValue("梨子",200);
dataset.setValue("葡萄",300);
dataset.setValue("香蕉",400);
dataset.setValue("荔枝",500);
JFreeChart pie_chart = ChartFactory.createPie3DChart("水果产量图",
  dataset,
  true,
  false,
  false
  );
String pie_filename = ServletUtilities.saveChartAsPNG(pie_chart, 500, 300, null, session);
String pie_graphURL = request.getContextPath() + "/servlet/DisplayChart?filename=" + pie_filename;
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  TimeSeries king = new TimeSeries("东软");
  for (int i = 1999; i
  
//  时间曲线数据集合
  TimeSeriesCollection line_dataset = new TimeSeriesCollection();
  line_dataset.addSeries(ca);
  line_dataset.addSeries(ibm);
  line_dataset.addSeries(king);
//  dataset.addSeries(jpy);
//  dataset.addSeries(mav);
//  时间曲线元素
  JFreeChart line_chart =
   ChartFactory.createTimeSeriesChart(
   title,
   domain,
   range,
   line_dataset,
   true,
   true,
   false);
   
TextTitle subtitle = new TextTitle(subtitleStr, new Font("黑体", Font.BOLD, 12));
line_chart.addSubtitle(subtitle);
line_chart.setTitle(new TextTitle(title, new Font("隶书", Font.ITALIC, 15)));
String line_filename = ServletUtilities.saveChartAsPNG(line_chart, 500, 300, null, session);
String line_graphURL = request.getContextPath() + "/servlet/DisplayChart?filename=" + line_filename;

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本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u/925/showart_190776.html