jchatfree_barchat.java

来自「关于Struts2的初体验」· Java 代码 · 共 38 行

package com.test.chatfree;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;

public class JChatFree_BarChat {

	public static CategoryDataset createCategoryDataset() {

		DefaultCategoryDataset dataset = new DefaultCategoryDataset();

		dataset.setValue(15, "开发人员", "开发人员");
		dataset.setValue(20, "销售人员", "销售人员");

		return dataset;

	}

	public static void main(String[] args) {

		JFreeChart chart = ChartFactory.createBarChart3D("Demo", "人员分布", "人员数量",
				createCategoryDataset(), PlotOrientation.VERTICAL, true, true, true);
		
		ChartFrame chartFrame = new ChartFrame("Demo", chart);
		
		chartFrame.pack();
		chartFrame.setVisible(true);
		
		

	}

}