饼状图形Factory

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<span style="font-size:18px;">                                   </span><span style="font-size:18px; white-space: pre;">	</span><span style="font-family:SimHei;font-size:32px;color:#ff9966;">饼状图形生产类</span>

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<span style="font-size:18px;">public class JFreeChatUtil {
public JFreeChart createBarChar(){
//数据集
DefaultCategoryDataset dataSet = new DefaultCategoryDataset();
dataSet.addValue(100, "北京", "西瓜");
dataSet.addValue(200, "北京", "苹果");
dataSet.addValue(400, "北京", "桃子");
dataSet.addValue(1000, "南京", "西瓜");
dataSet.addValue(300, "南京", "苹果");
dataSet.addValue(500, "南京", "桃子");
dataSet.addValue(700, "天津", "西瓜");
dataSet.addValue(200, "天津", "苹果");
dataSet.addValue(600, "天津", "桃子");

//
ChartFactory.setChartTheme(setTheme());
JFreeChart chart = ChartFactory.createBarChart3D("水果产量", "水果", "产量", dataSet,</span>

<span style="font-size:18px;"> <span style="white-space:pre">							</span>PlotOrientation.VERTICAL, true,	false, false);
return chart;
}

public JFreeChart createPieChar(DefaultPieDataset dataset, String title){
//数据集
ChartFactory.setChartTheme(setTheme());
JFreeChart chart = ChartFactory.createPieChart(title, dataset, true, true, false);
//createImage(chart,"piechart.jpg");
return chart;

}

public StandardChartTheme setTheme(){
//处理中文乱码
StandardChartTheme chartTheme = new StandardChartTheme("CN");
//标题
chartTheme.setExtraLargeFont(new Font("隶书",Font.BOLD,20));
//图例
chartTheme.setRegularFont(new Font("宋体",Font.PLAIN,15));
//轴向字体
chartTheme.setLargeFont(new Font("宋体",Font.PLAIN,15));
return chartTheme;
}

public void createImage(JFreeChart chart, String fileName){
FileOutputStream image = null;
try{
image = new FileOutputStream(fileName);
ChartUtilities.writeChartAsJPEG(image, chart, 400, 300);

}catch(Exception e){
e.printStackTrace();
}
}</span>