jfreechart

 /**
  * 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';