JFreeChart1.0.6的一个通用Web Demo

这是我自己做的一个关于统计的WebDemo;

首先建立一个web项目;在src中加入以下java文件:

GenerateWebBarChart3D.java(用于Bar3D图的显示的) 

java 代码

/**
 * Project name: RCP
 *
 * Package name: com.sclh.rsp.registercenter.service.chart
 * Filename    : GenerateWebBarChart3D.java
 * @Author     : fhway
 * DateTime    : 2007-10-18 下午04:43:00
 * Visoin      : 1.0
 * Company     : sclh
 * Copyright (c) 2007
 * 说明：
 */

package com.sclh.rsp.registercenter.service.chart;

import java.awt.Font;
import java.awt.RenderingHints;
import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.http.HttpSession;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartRenderingInfo;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.entity.StandardEntityCollection;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.servlet.ServletUtilities;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.CategoryDataset;

/**
 * @author fhway
 *
 */
public class GenerateWebBarChart3D {

    public static String getBarChart3D(CategoryDataset dataset,String title,String xName ,String yName, int width, int height, HttpSession session,PrintWriter pw){

        String filename = null;
        Font font = null;

        JFreeChart chart = ChartFactory.createBarChart3D(title, xName, yName, dataset, PlotOrientation.VERTICAL, false, false, false);


        chart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);

        TextTitle tt=new TextTitle(title);
        font = new Font("黑体",Font.CENTER_BASELINE,20);//这个地方是设置统计图标题的字体和大小
        tt.setFont(font);
        chart.setTitle(tt);

        chart.setBackgroundPaint(new java.awt.Color(244, 247, 251)); //统计图片的底色

        ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());
        try {
            filename = ServletUtilities.saveChartAsPNG(chart, width, height, info, session);
            //把image map 写入到 PrintWriter
            ChartUtilities.writeImageMap(pw, filename, info, true);
        } catch (IOException e) {
            System.out.println("Exception - " + e.toString());
            e.printStackTrace(System.out);
            filename = "public_error_500x300.png";
        }
        pw.flush();

        return filename;
    }

}

GenerateWebPieChart3D.java(用于Pie3D图显示的)

java 代码

/**
 * Project name: RCP
 *
 * Package name: com.sclh.rsp.registercenter.hibernate.dao.chat
 * Filename    : GenerateWebPieChart3D.java
 * @Author     : fhway
 * DateTime    : 2007-10-18 上午10:21:38
 * Visoin      : 1.0
 * Company     : sclh
 * Copyright (c) 2007
 * 说明：
 */

package com.sclh.rsp.registercenter.service.chart;

import java.awt.Font;
import java.awt.RenderingHints;
import java.io.PrintWriter;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.Iterator;
import java.util.Map;

import javax.servlet.http.HttpSession;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartRenderingInfo;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.entity.StandardEntityCollection;
import org.jfree.chart.labels.StandardPieSectionLabelGenerator;
import org.jfree.chart.plot.PiePlot;
import org.jfree.chart.servlet.ServletUtilities;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.general.DefaultPieDataset;

/**
 * @author fhway
 *
 */
public class GenerateWebPieChart3D {

    public static String getPieChart3D(Map map,String title,int width,int height,HttpSession session,PrintWriter pw){
        String filename = null;
        Font font = null;

        DefaultPieDataset data = new DefaultPieDataset();
        Iterator it = null;
        it = map.entrySet().iterator();
        while(it.hasNext()){
            Map.Entry entry = (Map.Entry) it.next();
            data.setValue(String.valueOf(entry.getKey()), Double.valueOf(String.valueOf(entry.getValue())));
        }
        try{
            JFreeChart chart = ChartFactory.createPieChart3D(title, data, false, false, false);
            PiePlot plot = (PiePlot)chart.getPlot();
            plot.setNoDataMessage("查询数据为空!");
            plot.setLabelGenerator(new StandardPieSectionLabelGenerator("{0}={1}({2})", NumberFormat.getNumberInstance(), new DecimalFormat("0.00%")));
            plot.setForegroundAlpha(0.5f);
            plot.setCircular(false);

            font = new Font("simsun",Font.PLAIN,12);//这个地方是设置统计图标题的字体和大小
            plot.setLabelFont(font);

            chart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);

            TextTitle tt=new TextTitle(title);
            font = new Font("黑体",Font.CENTER_BASELINE,20);//这个地方是设置统计图标题的字体和大小
            tt.setFont(font);
            chart.setTitle(tt);

            chart.setBackgroundPaint(new java.awt.Color(244, 247, 251)); //统计图片的底色

            ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());
            filename = ServletUtilities.saveChartAsPNG(chart, width, height, info, session);
            //把image map 写入到 PrintWriter
            ChartUtilities.writeImageMap(pw, filename, info, true);
            pw.flush();
        } catch (Exception e) {
            System.out.println("Exception - " + e.toString());
            e.printStackTrace(System.out);
            filename = "public_error_500x300.png";
        }
        return filename;
    }
}

 

java 代码

 IOpLoggerChart.java(调用方法接口文件)

/**
 * Project name: RCP
 *
 * Package name: com.sclh.rsp.registercenter.service.chat
 * Filename    : ILoggerChat.java
 * @Author     : fhway
 * DateTime    : 2007-10-18 下午02:28:48
 * Visoin      : 1.0
 * Company     : sclh
 * Copyright (c) 2007
 * 说明：
 */

package com.sclh.rsp.registercenter.service.chart;

import java.io.PrintWriter;

import javax.servlet.http.HttpSession;

/**
 * @author fhway
 *
 */
public interface IOpLoggerChart {

    /**
     *
     * @param title
     * @param session
     * @param pw
     * @return
     * @throws Exception
     * fhway 2007-10-18 下午05:21:03
     */
    public String getPieChart3D(String title, HttpSession session,PrintWriter pw) throws Exception;

    /**
     *
     * @param title
     * @param xName
     * @param yName
     * @param session
     * @param pw
     * @return
     * @throws Exception
     * fhway 2007-10-18 下午05:21:07
     */
    public String getBarChart3D(String title, String xName ,String yName, HttpSession session,PrintWriter pw) throws Exception;

}

OpLoggerChartImpl.java(调用实现)

java 代码

 

/**
 * Project name: RCP
 *
 * Package name: com.sclh.rsp.registercenter.hibernate.dao.chat
 * Filename    : LoggerChat.java
 * @Author     : fhway
 * DateTime    : 2007-10-18 上午10:26:02
 * Visoin      : 1.0
 * Company     : sclh
 * Copyright (c) 2007
 *
 * 说明：日志类型分类,图的长度和宽度采取Ioc的方式注入
 * 可以统计的类别有
 * 1. 日志数据库操作类型
 * 2. 时间段访问量(以月为单位,当前一年)
 * sample HQL="select t.dbtype, count(t.dbtype) from oplogger t  group by(t.dbtype) order by to_number(t.dbtype)"
 */

package com.sclh.rsp.registercenter.service.chart;

import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpSession;

import org.hibernate.HibernateException;
import org.hibernate.criterion.Projections;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.sclh.rsp.registercenter.hibernate.dao.IOpLogger;
import com.sclh.rsp.registercenter.hibernate.vo.OpLogger;
import com.sclh.rsp.registercenter.hibernate.vo.OpLoggerDbType;

/**
 * @author fhway
 *
 */
public class OpLoggerChartImpl implements IOpLoggerChart{
    /**
     * 定义输出图片的长度和宽度
     */
    private int width;
    private int height;
    /*DAO方法 */
    private IOpLogger opLoggerDAO;
    /* 图标数据 */
    private Map map;

    public OpLoggerChartImpl(){
        map = new HashMap();
        if(width == 0 ){ width = 500;}
        if(height == 0){ height = 400;}
    }

    /**
     * 获取图标数据
     * @return
     * @throws Exception
     * fhway 2007-10-18 上午10:49:55
     */
    private Map getLoggerDBTypeDataMap() throws Exception{
        Map map = new HashMap();
        List ll = opLoggerDAO.getCriteria(OpLogger.class)
            .setProjection(Projections.projectionList()
                    .add(Projections.property("dbtype"))
                    .add(Projections.count("dbtype"))
                    .add(Projections.groupProperty("dbtype")))
                    .list();
        Iterator it = ll.iterator();
        while(it.hasNext()){
            Object[] object = (Object[]) it.next();
            OpLoggerDbType odb = (OpLoggerDbType)object[0];
            map.put(odb.getName(), object[1].toString());
        }
        return map;
    }


    /**
     * 获取一个演示用的简单数据集对象
     * @return
     * @throws Exception
     * @throws HibernateException
     */
    private CategoryDataset getLoggerDBTypeDataDataSet() throws Exception {

        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
        List ll = opLoggerDAO.getCriteria(OpLogger.class)
            .setProjection(Projections.projectionList()
                    .add(Projections.property("dbtype"))
                    .add(Projections.count("dbtype"))
                    .add(Projections.groupProperty("dbtype")))
                    .list();
        Iterator it = ll.iterator();
        while(it.hasNext()){
            Object[] object = (Object[]) it.next();
            OpLoggerDbType odb = (OpLoggerDbType)object[0];
            dataset.addValue(new Integer(object[1].toString()).intValue(), "", odb.getName());
        }
        return dataset;
    }

    /**
     * 图形生成
     * @param map
     * @param title
     * @param session
     * @param pw
     * @return
     * fhway 2007-10-18 上午10:50:15
     * @throws Exception
     */
    public String getPieChart3D(String title, HttpSession session,PrintWriter pw) throws Exception{
        Map map = getLoggerDBTypeDataMap();
        return GenerateWebPieChart3D.getPieChart3D(map,title,width,height, session, pw);
    }

    public String getBarChart3D(String title, String xName ,String yName, HttpSession session,PrintWriter pw) throws Exception{
        CategoryDataset dataset = getLoggerDBTypeDataDataSet();
        return GenerateWebBarChart3D.getBarChart3D(dataset,title,xName , yName, width, height, session,pw);
    }

    /**
     * @return the height
     */
    public int getHeight() {
        return height;
    }
    /**
     * @param height the height to set
     */
    public void setHeight(int height) {
        this.height = height;
    }
    /**
     * @return the width
     */
    public int getWidth() {
        return width;
    }
    /**
     * @param width the width to set
     */
    public void setWidth(int width) {
        this.width = width;
    }

    /**
     * @return the map
     */
    public Map getMap() {
        return map;
    }

    /**
     * @param map the map to set
     */
    public void setMap(Map map) {
        this.map = map;
    }

    /**
     * @return the opLoggerDAO
     */
    public IOpLogger getOpLoggerDAO() {
        return opLoggerDAO;
    }

    /**
     * @param opLoggerDAO the opLoggerDAO to set
     */
    public void setOpLoggerDAO(IOpLogger opLoggerDAO) {
        this.opLoggerDAO = opLoggerDAO;
    }

    public static void main(String[] args) throws Exception{
        ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
        IOpLoggerChart lc = (IOpLoggerChart) context.getBean("loggerChartManger");


    }




}

OpLoggerChart.jsp(jsp调用实现)

js 代码

<%@ page contentType="text/html;charset=GBK"%>
<%@ page import = "java.io.PrintWriter" %>
<%@ page import="org.springframework.web.context.WebApplicationContext"%>
<%@ page import="org.springframework.web.context.support.WebApplicationContextUtils"%>
<%@ page import="com.sclh.rsp.registercenter.service.chart.IOpLoggerChart"%>

<%
ServletContext servletContext = (ServletContext) request.getSession().getServletContext();
WebApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(servletContext);
IOpLoggerChart lc = (IOpLoggerChart) ctx.getBean("opLoggerChartManger");

String filename = lc.getBarChart3D("日志数据操作统计图", "日志类型", "数值", session, new PrintWriter(out));

String graphURL = request.getContextPath() + "/servlet/DisplayChart?filename=" + filename;
%>
<HTML>
<HEAD>
<TITLE>日志数据操作统计图</TITLE>
</HEAD>
<BODY>
<P ALIGN="CENTER">
<img src="<%=graphURL%>" width=560 height=500 border=0 usemap="#<%=filename%>">
</P>
</BODY>
</HTML>

java 代码

代码基本就是这些,下面是项目的配置问题:

1.由于项目采用了Spring和Hibernate的框架,所以必须要进行一些设定.

2.数据库表的sql如下:

java 代码

create table OPLOGGER
(
  ID         VARCHAR2(12) not null,
  MESSAGE    VARCHAR2(1000) not null,
  USERID     VARCHAR2(12) not null,
  TYPE       VARCHAR2(2) not null,
  DBTYPE     VARCHAR2(2) not null,
  ISLOOK     CHAR(1),
  REMOTEADDR VARCHAR2(15),
  SYSTEMTIME DATE not null,
  DELFLAG    CHAR(1) not null
)
tablespace RSC
  pctfree 10
  initrans 1
  maxtrans 255
  storage
  (
    initial 64K
    minextents 1
    maxextents unlimited
  );
comment on table OPLOGGER
  is '日志表';