firstchart.java

jsp+servlet+jdbc结构的在线访问统计系统

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.JFreeChart;
import org.jfree.data.general.DefaultPieDataset;

public class FirstChart {
	
	public static void main(String[] args) 
	{
		//创建数据集对象
		DefaultPieDataset dataset = new DefaultPieDataset();
		dataset.setValue("Page1.jsp", 12);
		dataset.setValue("Page2.jsp", 15);
		
		//创建JFreeChart对象
		JFreeChart chart = ChartFactory.createPieChart(
			"页面访问统计",
			dataset,
			true, 
			true,
			false
		);
		
		//显示JFreeChart图形
		ChartFrame frame = new ChartFrame("统计图示范", chart);
		frame.pack();
		frame.setVisible(true);
	}
	
}