Cewolf+JFreeChart之报表代码实例大全不断更新中...

http://www.diybl.com/　2008-11-1 　网络　点击: 　[ 评论 ]

ne" title="折线图"
           type="line" xaxislabel="Page" yaxislabel="Views">
      <cewolf:data>
       <cewolf:producer id="pageViews"/>
      </cewolf:data>
    </cewolf:chart>
    <p>
    <cewolf:img chartid="line" renderer="/adChart" width="500" height="400"/>

    <P>
</BODY>
</HTML>

==============>

#########################*************************#########################
                                  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'' %>
    <html>
          <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <title>test</title>
      </head>
    <body>

      <jsp:useBean id="data1"      class="cewolf.VerticalBarData"/>

     <cewolf:chart
                     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">
                     <cewolf:data>
                            <cewolf:producer id="data1" />
                     </cewolf:data>
              </cewolf:chart>

              <cewolf:img
                     chartid="verticalBar"
                     renderer="/adChart"
                     width="500"
    &