Cewolf+JFreeChart之报表代码实例大全(附效果图)

章高朗

2023-12-01

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

<?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">
	<servlet>
		<servlet-name>CewolfServlet</servlet-name>
		<servlet-class>de.laures.cewolf.CewolfRenderer</servlet-class>
		<!-- sets storage implementation -->
		<init-param>
			<param-name>storage</param-name>
			<param-value>
		    	de.laures.cewolf.storage.TransientSessionStorage
		   </param-value>
		</init-param>
		<!-- sets overlib.js location relative to webapp -->
		<init-param>
			<param-name>overliburl</param-name>
			<param-value>/etc/overlib.js</param-value>
		</init-param>
		<!-- turn on or off debugging logging -->
		<init-param>
			<param-name>debug</param-name>
			<param-value>true</param-value>
		</init-param>
		<load-on-startup>4</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>CewolfServlet</servlet-name>
		<url-pattern>/adChart/*</url-pattern>
	</servlet-mapping>

</web-app>

时间序列图

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

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

		<cewolf:chart id="pageChart2" title="时间序列图" type="timeseries"
			xaxislabel="时间" yaxislabel="数量">
			<cewolf:data>
				<cewolf:producer id="data1" />
			</cewolf:data>
		</cewolf:chart>
		<cewolf:img chartid="pageChart2" renderer="/adChart" width="500"
			height="500" />

	</body>
</html>

[img]https://p-blog.csdn.net/images/p_blog_csdn_net/igoder/a.png[/img]

折线图

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'%>
<HTML>
	<BODY>
		<H1>
			Page View Statistics
		</H1>
		<HR>
		<jsp:useBean id="pageViews" class="cewolf.PageViewCountData" />
		<cewolf:chart id="line" 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>

[img]https://p-blog.csdn.net/images/p_blog_csdn_net/igoder/b.png[/img]

垂直柱条图

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"
			height="375" />

	</body>
</html>

[img]https://p-blog.csdn.net/images/p_blog_csdn_net/igoder/c.png[/img]

饼图

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

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

     <cewolf:chart 
                     id="pieChart" 
                     title="饼图" 
                     type="pie" >
                     <cewolf:data>
                            <cewolf:producer id="data1" />
                     </cewolf:data>
              </cewolf:chart>

              <cewolf:img 
                     chartid="pieChart" 
                     renderer="/adChart" 
                     width="500" 
                     height="375"/>

    </body>
    </html>

[img]https://p-blog.csdn.net/images/p_blog_csdn_net/igoder/d.png[/img]

柱状图

 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'%>
<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
		<title>test</title>
	</head>
	<body>
		<%
			cewolf.Tu tu = new cewolf.Tu();
			pageContext.setAttribute("data1", tu);

			{ // <cewolf:cha
		%>

		<cewolf:chart id="pageChart2" title="日期柱状图"
			type="stackedHorizontalBar" xaxislabel="时间" yaxislabel="数量">
			<cewolf:data>
				<cewolf:producer id="data1" />
			</cewolf:data>
		</cewolf:chart>
		<cewolf:img chartid="pageChart2" renderer="/adChart" width="500"
			height="500" />

	</body>
</html>

[img]https://p-blog.csdn.net/images/p_blog_csdn_net/igoder/e.png[/img]

Cewolf+JFreeChart之报表代码实例大全(附效果图)

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