JFreeChart生成2D折线图

1、源码如下：

/** * @Title:LineChart.java * @Package:com.you.jfreechart * @Description:折线图 * @author:Youhaidong(游海东) * @date:2013-7-24 下午9:51:22 * @version V1.0 */package com.you.jfreechart;import java.awt.Color;import java.awt.Font;import org.jfree.chart.ChartFactory;import org.jfree.chart.ChartFrame;import org.jfree.chart.JFreeChart;import org.jfree.chart.axis.CategoryAxis;import org.jfree.chart.axis.CategoryLabelPositions;import org.jfree.chart.plot.CategoryPlot;import org.jfree.chart.plot.PlotOrientation;import org.jfree.chart.title.LegendTitle;import org.jfree.data.category.DefaultCategoryDataset;/** * 类功能说明 * 类修改者 修改日期 * 修改说明 * <p>Title:LineChart.java</p> * <p>Description:游海东个人开发</p> * <p>Copyright:Copyright(c)2013</p> * @author:游海东 * @date:2013-7-24 下午9:51:22 * @version V1.0 */public class LineChart {/** * @Title:main * @Description:折线图 * @param:@param args * @return: void * @throws */public static void main(String[] args) {//赋值DefaultCategoryDataset dataset = new DefaultCategoryDataset();dataset.setValue(128, "北京市", "樟树");dataset.setValue(524, "北京市", "枫树");dataset.setValue(425, "北京市", "梨树");dataset.setValue(368, "北京市", "松树");dataset.setValue(986, "北京市", "柏树");dataset.setValue(529, "北京市", "梅树");dataset.setValue(724, "北京市", "米兰");dataset.setValue(659, "北京市", "榆树");dataset.setValue(874, "北京市", "桃树");dataset.setValue(258, "北京市", "橡树");//调用生成折线方法JFreeChart chart = ChartFactory.createLineChart("树木分布图", "省市", "树木的数量", dataset, PlotOrientation.VERTICAL, true, true, false);//设置背景色chart.setBackgroundPaint(Color.white);CategoryPlot categoryPlot = chart.getCategoryPlot();//设置画布背景色categoryPlot.setBackgroundPaint(Color.orange);//设置折线颜色categoryPlot.setDomainGridlinePaint(Color.magenta);categoryPlot.setDomainGridlinesVisible(true);//设置水平线颜色categoryPlot.setRangeGridlinePaint(Color.yellow);CategoryAxis categoryAxis = categoryPlot.getDomainAxis();//设置X轴标题名向上45度categoryAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_45);//解决X轴中文乱码categoryAxis.setLabelFont(new Font("宋体",Font.BOLD,12));categoryAxis.setTickLabelFont(new Font("宋体",Font.BOLD,12));categoryPlot.getRangeAxis().setLabelFont(new Font("宋体",Font.BOLD,12));//解决标题乱码chart.getTitle().setFont(new Font("宋体",Font.BOLD,20));//设置弹出窗口ChartFrame chartFrame = new ChartFrame("树木分布图", chart);chartFrame.pack();chartFrame.setVisible(true);//解决Legend乱码问题LegendTitle legendTitle = chart.getLegend(0);legendTitle.setItemFont(new Font("宋体",Font.BOLD,12));}}

2、显示结果如下图：