JFreeChart--柱状图简单实例

 现在学习jfreeChart，所以在网上查找了一些实例，综合之后的结构

public class Histogram {
	public static void main(String[] args) {
		// 创建柱状图
		DefaultCategoryDataset dataset = new DefaultCategoryDataset();
		// 装载数据
		dataset.setValue(6, "Profit", "Jane");
		dataset.setValue(3, "Profit2", "Jane");
		dataset.setValue(7, "Profit", "Tom");
		dataset.setValue(6, "Profit2", "Tom");
		dataset.setValue(8, "Profit", "Jill");
		dataset.setValue(9, "Profit2", "Jill");
		dataset.setValue(5, "Profit", "Johh");
		dataset.setValue(8, "Profit2", "Johh");
		dataset.setValue(12, "Profit", "Fred");
		dataset.setValue(11, "Profit2", "Fred");
		// 产生柱状图
		// JFreeChart chart = ChartFactory.createBarChart("标题", "x轴标志", "y轴标志",
		// 设置数据, 设置图形显示方向, 是否显示图形, 是否进行提示, 是否配置报表存放地址);

		// 3D柱状图
		JFreeChart chart = ChartFactory.createBarChart("销售统计图", "销售员", "盈利",
				dataset, PlotOrientation.VERTICAL, true, true, false);
		// 解决中文乱码
		CategoryPlot plot = chart.getCategoryPlot();
		CategoryAxis domainAxis = plot.getDomainAxis();
		NumberAxis numberAxis = (NumberAxis) plot.getRangeAxis();

		TextTitle textTitle = chart.getTitle();
		textTitle.setFont(new Font("黑体", Font.PLAIN, 20));
		domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));
		domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));
		numberAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));
		numberAxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));

		chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12));

		try {
			// 创建图形显示面板
			ChartFrame cf = new ChartFrame("柱状图", chart);
			cf.pack();
			// 设置图片大小
			cf.setSize(800, 600);
			// 设置图形可见
			cf.setVisible(true);
			// 保存图片到指定位置
			// ChartUtilities.saveChartAsJPEG(new File("C:\\bar.png"), chart,
			// 500,
			// 300);
		} catch (Exception e) {
			System.err.println("Problem occurred creating chart.");
		}
	}
}

 效果