天地无用--Cewolf+JFreeChart之报表代码实例大全不断更新中...(转)

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<servlet> <servlet-name>CewolfServlet</servlet-name> <servlet-class>de.laures.cewolf.CewolfRenderer</servlet-class>  <init-param> <param-name>storage</param-name> <param-value> de.laures.cewolf.storage.TransientSessionStorage </param-value> </init-param>  <init-param> <param-name>overliburl</param-name> <param-value>/etc/overlib.js</param-value> </init-param>  <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>#########################*************************######################### 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'' %> <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> ==============> #########################*************************######################### ==============>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'' %><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> ==============> #########################*************************######################### 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" & nbsp; height="375"/> </body> </html> ==============> #########################*************************######################### 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'' %> <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> ==============> #########################*************************#########################==============>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 Int eger(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: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> ==============>

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