JFreeChart画3D二维图

1.public String barChart() throws Exception{  
2.        DefaultCategoryDataset dataset = new DefaultCategoryDataset();  
3.        dataset.addValue(100, "北京", "苹果");  
4.        dataset.addValue(200, "上海", "苹果");  
5.        dataset.addValue(150, "广州", "苹果");  
6.        dataset.addValue(260, "北京", "梨子");  
7.        dataset.addValue(210, "上海", "梨子");  
8.        dataset.addValue(120, "广州", "梨子");  
9.        dataset.addValue(370, "北京", "葡萄");  
10.        dataset.addValue(310, "上海", "葡萄");  
11.        dataset.addValue(340, "广州", "葡萄");  
12.        dataset.addValue(410, "北京", "香蕉");  
13.        dataset.addValue(480, "上海", "香蕉");  
14.        dataset.addValue(400, "广州", "香蕉");  
15.        dataset.addValue(530, "北京", "荔枝");  
16.        dataset.addValue(500, "上海", "荔枝");  
17.        dataset.addValue(580, "广州", "荔枝");  
18.          
19.        JFreeChart jfree =   
20.            ChartFactory.createBarChart3D("水果产量图", "水果", "产量", dataset,   
21.                    PlotOrientation.VERTICAL, true, true, false);  
22.          
23.        CategoryPlot categoryplot = (CategoryPlot) jfree.getPlot();  
24.        NumberAxis numberaxis = (NumberAxis) categoryplot.getRangeAxis();    
25.        CategoryAxis domainAxis = categoryplot.getDomainAxis();    
26.        TextTitle textTitle = jfree.getTitle();  
27.        textTitle.setFont(new Font("黑体", Font.PLAIN, 20));     
28.        domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 14));    
29.        domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 16));    
30.        numberaxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 14));    
31.        numberaxis.setLabelFont(new Font("黑体", Font.PLAIN, 16));    
32.        jfree.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 16));  
33.          
34.        //path代表当前服务器上下文路径  
35.        String path = ServletActionContext.getRequest().getSession().getServletContext().getRealPath("/");  
36.          
37.        if(imgName==null || "".equals(imgName)){  
38.            imgName = "default";  
39.        }  
40.          
41.        //保存图片  
42.        ChartUtilities.saveChartAsJPEG(new File(path + "img/" + imgName + "Bar.jpg"), jfree, 535, 400);  
43.          
44.        return "success";