java小强--使用 jfreechart 生成 曲线、柱状图、饼状图、分布图 展示到JSP

虽然现在JS做报表和图形展示已经非常普遍和漂亮了，但是不能忽略有jfreechart 这样一种东西！

这些翻阅资料，在看以前写的示例时发现了关于jfreechart 的简单示例，不管怎样发上来分享一下！

 

 

这个示例使用JSP和Servlet做后台和前台展示，下面有源代码可以直接运行！

生产线型趋势图：

 

package com.xidian.servlet;
import java.awt.Color;
import java.awt.Font;
import java.io.*;
import java.text.SimpleDateFormat;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.jfree.chart.*;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.time.Day;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.data.xy.XYDataset;
/**
 * 生产线型趋势图
 * @说明
 * @author cuisuqiang
 * @version 1.0
 * @since
 */
@SuppressWarnings("serial")
public class LineServlet extends HttpServlet {
    @SuppressWarnings("deprecation")
    @Override
    protected void service(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html");
        // 在Mysql中使用 select
        // year(accessdate),month(accessdate),day(accessdate),count(*)
        // 其中accessdate 是一个date类型的时间
        // 时间序列对象集合
        TimeSeriesCollection chartTime = new TimeSeriesCollection();
        // 时间序列对象，第1个参数表示时间序列的名字，第2个参数是时间类型，这里为天
        // 该对象用于保存前count天每天的访问次数
        TimeSeries timeSeries = new TimeSeries("日访问", Day.class);
        // 为了演示，直接拼装数据
        // Day的组装格式是day-month-year 访问次数
        timeSeries.add(new Day(1, 1, 2010), 50);
        timeSeries.add(new Day(2, 1, 2010), 47);
        timeSeries.add(new Day(3, 1, 2010), 82);
        timeSeries.add(new Day(4, 1, 2010), 95);
        timeSeries.add(new Day(5, 1, 2010), 104);
        timeSeries.add(new Day(6, 1, 2010), 425);
        chartTime.addSeries(timeSeries);
        XYDataset date = chartTime;
        try {
            // 使用ChartFactory来创建时间序列的图表对象
            JFreeChart chart = ChartFactory.createTimeSeriesChart(
                    "网站每天访问统计", // 图形标题
                    "日期", // X轴说明
                    "访问量", // Y轴说明
                    date, // 数据
                    true, // 是否创建图例
                    true, // 是否生成Tooltips
                    false // 是否生产URL链接
            );
            // 设置整个图片的背景色
            chart.setBackgroundPaint(Color.PINK);
            // 设置图片有边框
            chart.setBorderVisible(true);
            // 获得图表区域对象
            XYPlot xyPlot = (XYPlot) chart.getPlot();
            // 设置报表区域的背景色
            xyPlot.setBackgroundPaint(Color.lightGray);
            // 设置横 纵坐标网格颜色
            xyPlot.setDomainGridlinePaint(Color.GREEN);
            xyPlot.setRangeGridlinePaint(Color.GREEN);
            // 设置横、纵坐标交叉线是否显示
            xyPlot.setDomainCrosshairVisible(true);
            xyPlot.setRangeCrosshairVisible(true);
            // 获得数据点（X,Y）的render，负责描绘数据点
            XYItemRenderer xyItemRenderer = xyPlot.getRenderer();
            if (xyItemRenderer instanceof XYLineAndShapeRenderer) {
                XYLineAndShapeRenderer xyLineAndShapeRenderer = (XYLineAndShapeRenderer) xyItemRenderer;
                xyLineAndShapeRenderer.setShapesVisible(true); // 数据点可见
                xyLineAndShapeRenderer.setShapesFilled(true); // 数据点是实心点
                xyLineAndShapeRenderer.setSeriesFillPaint(0, Color.RED); // 数据点填充为蓝色
                xyLineAndShapeRenderer.setUseFillPaint(true);// 将设置好的属性应用到render上
            }
            // 配置以下内容方可解决乱码问题
            // 配置字体
            Font xfont = new Font("宋体", Font.PLAIN, 12);    // X轴
            Font yfont = new Font("宋体", Font.PLAIN, 12);    // Y轴
            Font kfont = new Font("宋体", Font.PLAIN, 12);    // 底部
            Font titleFont = new Font("宋体", Font.BOLD, 25); // 图片标题
            // 图片标题
            chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
            // 底部
            chart.getLegend().setItemFont(kfont);
            // X 轴
            ValueAxis domainAxis = xyPlot.getDomainAxis();
            domainAxis.setLabelFont(xfont);// 轴标题
            domainAxis.setTickLabelFont(xfont);// 轴数值
            domainAxis.setTickLabelPaint(Color.BLUE); // 字体颜色
            // Y 轴
            ValueAxis rangeAxis = xyPlot.getRangeAxis();
            rangeAxis.setLabelFont(yfont);
            rangeAxis.setLabelPaint(Color.BLUE); // 字体颜色
            rangeAxis.setTickLabelFont(yfont);
            // 定义坐标轴上日期显示的格式
            DateAxis dateAxis = (DateAxis) xyPlot.getDomainAxis();
            // 设置日期格式
            dateAxis.setDateFormatOverride(new SimpleDateFormat("yyyy-MM-dd"));
            // 向客户端输出生成的图片
            ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
                    chart, 500, 300, null);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

 y转数据格式化

NumberAxis naxis = (NumberAxis) xyPlot.getRangeAxis();
naxis.setNumberFormatOverride(new DecimalFormat("0.00 "));

 

 

生产柱状图：

 

package com.xidian.servlet;
import java.awt.Color;
import java.awt.Font;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.DefaultCategoryDataset;

/**
 * 生产柱状图
 * @说明
 * @author cuisuqiang
 * @version 1.0
 * @since
 */
@SuppressWarnings("serial")
public class PillarServlet extends HttpServlet {
    @Override
    protected void service(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html");
        // 使用普通数据集
        DefaultCategoryDataset chartDate = new DefaultCategoryDataset();
        // 增加测试数据，第一个参数是访问量，最后一个是时间，中间是显示用不考虑
        chartDate.addValue(55, "访问量", "2010-01");
        chartDate.addValue(65, "访问量", "2010-02");
        chartDate.addValue(59, "访问量", "2010-03");
        chartDate.addValue(156, "访问量", "2010-04");
        chartDate.addValue(452, "访问量", "2010-05");
        chartDate.addValue(359, "访问量", "2010-06");
        try {
            // 从数据库中获得数据集
            DefaultCategoryDataset data = chartDate;

            // 使用ChartFactory创建3D柱状图，不想使用3D，直接使用createBarChart
            JFreeChart chart = ChartFactory.createBarChart3D(
                    "网站月访问量统计", // 图表标题
                    "时间", // 目录轴的显示标签
                    "访问量", // 数值轴的显示标签
                    data, // 数据集
                    PlotOrientation.VERTICAL, // 图表方向，此处为垂直方向
                    // PlotOrientation.HORIZONTAL, //图表方向，此处为水平方向
                    true, // 是否显示图例
                    true, // 是否生成工具
                    false // 是否生成URL链接
                    );
            // 设置整个图片的背景色
            chart.setBackgroundPaint(Color.PINK);
            // 设置图片有边框
            chart.setBorderVisible(true);
            Font kfont = new Font("宋体", Font.PLAIN, 12);    // 底部
            Font titleFont = new Font("宋体", Font.BOLD, 25); // 图片标题
            // 图片标题
            chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
            // 底部
            chart.getLegend().setItemFont(kfont);
            // 得到坐标设置字体解决乱码
            CategoryPlot categoryplot = (CategoryPlot) chart.getPlot();
            categoryplot.setDomainGridlinesVisible(true);
            categoryplot.setRangeCrosshairVisible(true);
            categoryplot.setRangeCrosshairPaint(Color.blue);
            NumberAxis numberaxis = (NumberAxis) categoryplot.getRangeAxis();
            numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
            BarRenderer barrenderer = (BarRenderer) categoryplot.getRenderer();
            barrenderer.setBaseItemLabelFont(new Font("宋体", Font.PLAIN, 12));
            barrenderer.setSeriesItemLabelFont(1, new Font("宋体", Font.PLAIN, 12));
            CategoryAxis domainAxis = categoryplot.getDomainAxis();
            /*------设置X轴坐标上的文字-----------*/
            domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));
            /*------设置X轴的标题文字------------*/
            domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));
            /*------设置Y轴坐标上的文字-----------*/
            numberaxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12));
            /*------设置Y轴的标题文字------------*/
            numberaxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));
            /*------这句代码解决了底部汉字乱码的问题-----------*/
            chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12));
            // 生成图片并输出
            ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
                    chart, 500, 300, null);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

 

 

生成饼状统计图：

 

package com.xidian.servlet;
import java.awt.Color;
import java.awt.Font;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot3D;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.general.DefaultPieDataset;
/**
 * 生成饼状统计图
 * @说明
 * @author cuisuqiang
 * @version 1.0
 * @since
 */
@SuppressWarnings("serial")
public class CakeServlet extends HttpServlet {
    protected void service(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html");
        // 默认数据类型
        DefaultPieDataset dataType = new DefaultPieDataset();
        // 数据参数 内容，数量
        dataType.setValue("IE6", 156);
        dataType.setValue("IE7", 230);
        dataType.setValue("IE8", 45);
        dataType.setValue("火狐", 640);
        dataType.setValue("谷歌", 245);
        try {
            DefaultPieDataset data = dataType;
            // 生成普通饼状图除掉 3D 即可
            // 生产3D饼状图
            PiePlot3D plot = new PiePlot3D(data);
            JFreeChart chart = new JFreeChart(
                    "用户使用的浏览器类型",            // 图形标题
                    JFreeChart.DEFAULT_TITLE_FONT, // 标题字体
                    plot,                          // 图标标题对象
                    true                           // 是否显示图例
            );
            // 设置整个图片的背景色
            chart.setBackgroundPaint(Color.PINK);
            // 设置图片有边框
            chart.setBorderVisible(true);
            // 配置字体
            Font kfont = new Font("宋体", Font.PLAIN, 12);    // 底部
            Font titleFont = new Font("宋体", Font.BOLD, 25); // 图片标题
            // 图片标题
            chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
            // 底部
            chart.getLegend().setItemFont(kfont);
            ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
                    chart, 500, 300, null);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

 

 

柱状分布统计图：

 

package com.xidian.servlet;
import java.awt.Color;
import java.awt.Font;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.DefaultCategoryDataset;
/**
 * 柱状分布统计图
 * @说明
 * @author cuisuqiang
 * @version 1.0
 * @since
 */
@SuppressWarnings("serial")
public class ParagraphsServlet extends HttpServlet {
    protected void service(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html");
        DefaultCategoryDataset dataTime = new DefaultCategoryDataset();
        // 这是一组数据
        dataTime.addValue(52, "0-6", "2010-1-1");
        dataTime.addValue(86, "6-12", "2010-1-1");
        dataTime.addValue(126, "12-18", "2010-1-1");
        dataTime.addValue(42, "18-24", "2010-1-1");
        // 这是一组数据
        dataTime.addValue(452, "0-6", "2010-1-2");
        dataTime.addValue(96, "6-12", "2010-1-2");
        dataTime.addValue(254, "12-18", "2010-1-2");
        dataTime.addValue(126, "18-24", "2010-1-2");
        // 这是一组数据
        dataTime.addValue(256, "0-6", "2010-1-3");
        dataTime.addValue(86, "6-12", "2010-1-3");
        dataTime.addValue(365, "12-18", "2010-1-3");
        dataTime.addValue(24, "18-24", "2010-1-3");
        try {
            DefaultCategoryDataset data = dataTime;
            // 使用ChartFactory创建3D柱状图，不想使用3D，直接使用createBarChart
            JFreeChart chart = ChartFactory.createBarChart3D(
                    "网站时间段访问量统计",
                    "时间",
                    "访问量",
                    data,
                    PlotOrientation.VERTICAL,
                    true,
                    false,
                    false
            );
            // 设置整个图片的背景色
            chart.setBackgroundPaint(Color.PINK);
            // 设置图片有边框
            chart.setBorderVisible(true);
            Font kfont = new Font("宋体", Font.PLAIN, 12);    // 底部
            Font titleFont = new Font("宋体", Font.BOLD, 25); // 图片标题
            // 图片标题
            chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
            // 底部
            chart.getLegend().setItemFont(kfont);
            // 得到坐标设置字体解决乱码
            CategoryPlot categoryplot = (CategoryPlot) chart.getPlot();
            categoryplot.setDomainGridlinesVisible(true);
            categoryplot.setRangeCrosshairVisible(true);
            categoryplot.setRangeCrosshairPaint(Color.blue);
            NumberAxis numberaxis = (NumberAxis) categoryplot.getRangeAxis();
            numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
            BarRenderer barrenderer = (BarRenderer) categoryplot.getRenderer();
            barrenderer.setBaseItemLabelFont(new Font("宋体", Font.PLAIN, 12));
            barrenderer.setSeriesItemLabelFont(1, new Font("宋体", Font.PLAIN, 12));
            CategoryAxis domainAxis = categoryplot.getDomainAxis();
            /*------设置X轴坐标上的文字-----------*/
            domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));
            /*------设置X轴的标题文字------------*/
            domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));
            /*------设置Y轴坐标上的文字-----------*/
            numberaxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12));
            /*------设置Y轴的标题文字------------*/
            numberaxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));
            /*------这句代码解决了底部汉字乱码的问题-----------*/
            chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12));
            ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
                    chart, 500, 300, null);
        } catch (Exception es) {
            es.printStackTrace();
        }
    }
}

 

 

JSP上使用IMG图片来请求Servlet显示图片：

 

<%@ page language="java" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    <title></title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
  </head>
  <body>
    <center>
        <img src="LineServlet">
        <img src="PillarServlet">
        <img src="ParagraphsServlet">
        <img src="CakeServlet">
    </center>
  </body>
</html>

 

 

WEB.xml配置：

 

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    <filter>
        <filter-name>EncodingFilter</filter-name>
        <filter-class>org.filter.EncodingFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>EncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <servlet>
        <servlet-name>LineServlet</servlet-name>
        <servlet-class>com.xidian.servlet.LineServlet</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>PillarServlet</servlet-name>
        <servlet-class>com.xidian.servlet.PillarServlet</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>ParagraphsServlet</servlet-name>
        <servlet-class>
            com.xidian.servlet.ParagraphsServlet
        </servlet-class>
    </servlet>
    <servlet>
        <servlet-name>CakeServlet</servlet-name>
        <servlet-class>com.xidian.servlet.CakeServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>LineServlet</servlet-name>
        <url-pattern>/LineServlet</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>PillarServlet</servlet-name>
        <url-pattern>/PillarServlet</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>ParagraphsServlet</servlet-name>
        <url-pattern>/ParagraphsServlet</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>CakeServlet</servlet-name>
        <url-pattern>/CakeServlet</url-pattern>
    </servlet-mapping>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

 

 

为了解决乱码问题，我配置了一个过滤器：

 

package org.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
/**
 * 处理乱码
 * @说明
 * @author cuisuqiang
 * @version 1.0
 * @since
 */
public class EncodingFilter implements Filter {
    public void destroy() {
    }
    public void doFilter(ServletRequest request, ServletResponse response,
            FilterChain chain) throws IOException, ServletException {
        request.setCharacterEncoding("gbk");
        response.setCharacterEncoding("gbk");
        chain.doFilter(request, response);
    }
    public void init(FilterConfig arg0) throws ServletException {

    }
}

 

 

 

请您到ITEYE网站看原创，谢谢！

http://cuisuqiang.iteye.com/ ！

 

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