Cewolf+JFreeChart之报表代码实例大全(附效果图)

报表代码实例大全：

本实例采用Cewolf+JFreeChart做成。Cewolf是基于JFreechart的,利用JFreechart的绘制引擎,将最终的图片写入客户端.在服务器端不会创建任何文件。

其中这些实例中的web.xml的配置都是一样的，所以配置一次后就不再动它了

后面的每一个实例我都会给出java类和jsp页面的代码，并附上对应的显示出来的图形(这些实例中有些来自网上,我也都一并做过并成功实现)

#########################*************************#########################

==============>web.xml

  CewolfServlet
  de.laures.cewolf.CewolfRenderer
  
  
   storage
   
    de.laures.cewolf.storage.TransientSessionStorage
   
  
  
  
   overliburl
   /etc/overlib.js
  
  
  
   debug
   true
  
  4
 

 
  CewolfServlet
  /adChart/*
 

#########################*************************#########################

                                   时间序列图

==============>JAVA类

package cewolf;

 

import java.io.Serializable;
import java.text.DateFormat;
import java.text.ParseException;
import java.util.Date;
import java.util.Map;

 

import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;

 

import de.laures.cewolf.DatasetProducer;

 

public class AdDateLineDataset implements DatasetProducer, Serializable {
    private Number[] data;

 

    private Date[] dateCategories;

 

    public AdDateLineDataset() {
  super();
   data = new Number[]{11,33,27};
         DateFormat df = DateFormat.getDateTimeInstance();
         try {
    dateCategories = new Date[]{df.parse("2008-03-5 08:00:00"),df.parse("2008-03-5 10:00:00"),df.parse("2008-03-5 15:00:00")};
   } catch (ParseException e) {
    e.printStackTrace();
   }
 }
   
 public AdDateLineDataset(Date[] d, Number[] a) {
    }

 

    public Object produceDataset(Map params) {

 

        TimeSeries ts1 = new TimeSeries("My Title", org.jfree.data.time.Hour.class);
        for (int i = 0; i < data.length; i++) {
         ts1.add(new org.jfree.data.time.Hour(dateCategories[i]),    data[i]);
        }
        TimeSeriesCollection collect = new TimeSeriesCollection(ts1);
        return collect;
    }

 

    public String getProducerId() {
        return "TimeDataProducer";
    }

 

    public boolean hasExpired(Map params, Date since) {
        return true;
    }
    }

 

==============>JSP页面

 

<%@ page language="java" pageEncoding="UTF-8" %>
< %@page import="java.util.Date"%>
< %@taglib uri='/WEB-INF/tlds/cewolf.tld' prefix='cewolf' %>
   
         
       
       
     
   
   
     

 

    
       
       
       
   
   

 

   
   

==============>效果图

 

 

#########################*************************#########################

                                  折线图

==============>JAVA类

package cewolf;

 

import java.io.Serializable;
import java.util.Date;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import de.laures.cewolf.DatasetProduceException;
import de.laures.cewolf.DatasetProducer;
import de.laures.cewolf.links.CategoryItemLinkGenerator;
import de.laures.cewolf.tooltips.CategoryToolTipGenerator;
/**
 * An example data producer.
 * @author  Guido Laures
 */
public class PageViewCountData implements DatasetProducer,
          CategoryToolTipGenerator,
          CategoryItemLinkGenerator,
          Serializable {
    private static final Log log = LogFactory.getLog(PageViewCountData.class);
    // These values would normally not be hard coded but produced by
    // some kind of data source like a database or a file
    private final String[] categories = { "mon",
           "tue",
           "wen",
           "thu",
           "fri",
           "sat",
           "sun"};
    private final String[] seriesNames = { "cewolfset.jsp",
           "tutorial.jsp",
           "testpage.jsp",
           "performancetest.jsp"};
 /**
  *  Produces some random data.
  */
    public Object produceDataset(Map params)
        throws DatasetProduceException {
     log.debug("producing data.");
        DefaultCategoryDataset dataset = new DefaultCategoryDataset(){
   /**
    * @see java.lang.Object#finalize()
    *当垃圾回收器确定不存在对该对象的更多引用时，
    *由对象的垃圾回收器调用此方法
    */
   protected void finalize() throws Throwable {
    super.finalize();
    log.debug(this +" finalized.");
   }
        };
        for (int series = 0; series < seriesNames.length; series ++) {
            int lastY = (int)(Math.random() * 1000 + 1000);
            for (int i = 0; i < categories.length; i++) {
                final int y = lastY + (int)(Math.random() * 200 - 100);
                lastY = y;
                dataset.addValue(y, seriesNames[series], categories[i]);
            }
        }
        return dataset;
    }
    /**
     * This producer's data is invalidated after 5 seconds. By this method the
     * producer can influence Cewolf's caching behaviour the way it wants to.
     */
 public boolean hasExpired(Map params, Date since) { 
        log.debug(getClass().getName() + "hasExpired()");
  return (System.currentTimeMillis() - since.getTime())  > 5000;
 }
 /**
  * Returns a unique ID for this DatasetProducer
  */
 public String getProducerId() {
  return "PageViewCountData DatasetProducer";
 }
    /**
     * Returns a link target for a special data item.
     */
    public String generateLink(Object data, int series, Object category) {
        return seriesNames[series];
    }
   
 /**
  * @see java.lang.Object#finalize()
  */
 protected void finalize() throws Throwable {
  super.finalize();
  log.debug(this + " finalized.");
 }
 /**
  * @see org.jfree.chart.tooltips.CategoryToolTipGenerator#generateToolTip(CategoryDataset, int, int)
  */
 public String generateToolTip(CategoryDataset arg0, int series, int arg2) {
  return seriesNames[series];
 }
}

==============>JSP页面

< %@page contentType="text/html;charset=utf8"%>
< %@taglib uri='/WEB-INF/tlds/cewolf.tld' prefix='cewolf' %>

 
 

Page View Statistics

  

---

   
               type="line" xaxislabel="Page" yaxislabel="Views">
           
      
     
   
   

   
      
   

 

==============>效果图

 

#########################*************************#########################

                                   垂直柱条图

==============>JAVA类

 package cewolf;

 

import java.util.Date;
import java.util.Map;

 

import org.jfree.data.category.DefaultCategoryDataset;

 

import de.laures.cewolf.DatasetProduceException;
import de.laures.cewolf.DatasetProducer;

 

public class VerticalBarData implements DatasetProducer {
 
 String chartTitle = "垂直直方图";                     
    String name[] = {"张三", "李四", "王五", "刘六", "赵七"};
    String category[] = {"第1周", "第2周", "第3周", "第4周" };

 

 @Override
 public String getProducerId() {
  return null;
 }

 

 @Override
 public boolean hasExpired(Map arg0, Date arg1) {
  return true;
 }

 

 @Override
 public Object produceDataset(Map arg0) throws DatasetProduceException {
  DefaultCategoryDataset dataset = new DefaultCategoryDataset();
        // 往数据集中添加绘制图表所需的数据
        int bookSales;
        for (int i=0; i < name.length; i++)
        {
               for (int j=0; j < category.length; j++ )
               {
       //随机生成销售量
                      bookSales = 50 + (int)(Math.random() * 50);
                      dataset.addValue(bookSales, name[i], category[j]);
               }
        }
        return dataset;

 

 }

 

}

==============>JSP页面

 <%@ page language="java" pageEncoding="UTF-8" %>
< %@page import="java.util.Date"%>
< %@taglib uri='/WEB-INF/tlds/cewolf.tld' prefix='cewolf' %>
   
         
       
       
     
   
   
     

 

                          id="verticalBar"
                     title="金牌公司推销人员业绩"
                     type="verticalBar"
                     xaxislabel="销售时间:2005年4月"
                     yaxislabel="销售量">
                    
                           
                    
             
 
                                   chartid="verticalBar"
                     renderer="/adChart"
                     width="500"
                     height="375"/>

 

   
   

==============>效果图

 

 

#########################*************************#########################

                                 饼图

==============>JAVA类

package cewolf;

 

import java.util.Date;
import java.util.Map;

 

import org.jfree.data.general.DefaultPieDataset;

 

import de.laures.cewolf.DatasetProduceException;
import de.laures.cewolf.DatasetProducer;

 

public class PieData  implements DatasetProducer {

 

 @Override
 public String getProducerId() {
  return null;
 }

 

 @Override
 public boolean hasExpired(Map arg0, Date arg1) {
  return true;
 }

 

 @Override
 public Object produceDataset(Map arg0) throws DatasetProduceException {
  DefaultPieDataset defaultpiedataset = new DefaultPieDataset(); 

 

        defaultpiedataset.setValue("One", new Double(43.200000000000003D));

 

        defaultpiedataset.setValue("Two", new Double(10D));

 

        defaultpiedataset.setValue("Three", new Double(27.5D));

 

        defaultpiedataset.setValue("Four", new Double(17.5D));

 

        return defaultpiedataset;

 

 }

 

}

==============>JSP页面

<%@ page language="java" pageEncoding="UTF-8" %>
< %@page import="java.util.Date"%>
< %@taglib uri='/WEB-INF/tlds/cewolf.tld' prefix='cewolf' %>
   
         
       
       
     
   
   
     

 

                          id="pieChart"
                     title="饼图"
                     type="pie" >
                    
                           
                    
             
 
                                   chartid="pieChart"
                     renderer="/adChart"
                     width="500"
                     height="375"/>

 

   
   

==============>效果图

 

#########################*************************#########################

 

 

==============>JAVA类

 package cewolf;

 

import java.io.Serializable;
import java.util.Date;
import java.util.Map;
import org.jfree.data.category.DefaultIntervalCategoryDataset;
import de.laures.cewolf.DatasetProduceException;
import de.laures.cewolf.DatasetProducer;

 

public class Tu implements DatasetProducer, Serializable{
    String categories[] = {"mon","tues","sun","xxx"};
    String seriesNames [] = {"show","click","ctr"};
       
    public String getProducerId() {           
        return "CategoryDataProducer";
    }

 

    public boolean hasExpired(Map arg0, Date arg1) {
   
        return true;
    }

 

    public Object produceDataset(Map arg0) throws DatasetProduceException {

 

        //以下是测试数据
        Number[][] datasets = new Number[4][3];

 

       
        datasets[0][0] = new Integer(201);
        datasets[0][1] = new Integer(2);
        datasets[0][2] = new Integer(3);
       
        datasets[1][0] = new Integer(11);
        datasets[1][1] = new Integer(22);
        datasets[1][2] = new Integer(33);
           
        datasets[2][0] = new Integer(44);
        datasets[2][1] = new Integer(55);
        datasets[2][2] = new Integer(66); 
       
        datasets[3][0] = new Integer(77);
        datasets[3][1] = new Integer(88);
        datasets[3][2] = new Integer(99);
         
         //参数1:横轴 参数2:纵轴 
        DefaultIntervalCategoryDataset ds = new DefaultIntervalCategoryDataset(
                categories,seriesNames,  datasets,datasets);
        return ds;
    }  
}

 

 

==============>JSP页面

 <%@ page language="java" pageEncoding="UTF-8" %>
< %@taglib uri='/WEB-INF/tlds/cewolf.tld' prefix='cewolf' %>
   
         
       
       
     
   
      <%
        cewolf.Tu tu = new cewolf.Tu();
        pageContext.setAttribute("data1",tu);
      %>

 

    
       
       
       
   
   

 

   
   

==============>效果图