cewolf學習筆記

最後更新：2018-12-05 來源：互聯網

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cewolf學習筆記

1.匯入包
:http://cewolf.sourceforge.net/new/index.html

(1)匯入包到 WEB-INF/lib下
    cewolf-1.0.jar
    batik-*.jar
    jcommon-1.0.0.jar
    jfreechart-1.0.jar

(2)匯入標籤檔案到WEB-INF下
     cewolf.tld

2.配置web.xml檔案
新增:
<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>

3.寫類檔案
    類必須實現DatasetProducer介面
    例:
    package action;

    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"};
        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 {

//以下是測試資料
Number[][] datasets = new Number[3][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);

            //參數1:橫軸參數2:縱軸
            DefaultIntervalCategoryDataset ds = new DefaultIntervalCategoryDataset(
                    categories,seriesNames, datasets,datasets);
            return ds;
        }
    }

4.寫JSP檔案
以下是個柱狀圖:

    <%@ page language="java" pageEncoding="UTF-8" import="yicha.tool.IpList"%>
    <%@taglib uri='/WEB-INF/cewolf.tld' prefix='cewolf' %>
    <html>
          <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <title>test</title>
    </head>
    <body>
    <%
        action.Tu tu = new action.Tu();
        pageContext.setAttribute("data1",tu);
    %>

    <cewolf:chart id="pageChart2" title="日期柱狀圖" type="stackedHorizontalBar"     xaxislabel="時間" yaxislabel="數量">
        <cewolf:data>
        <cewolf:producer id="data1" />
        </cewolf:data>
    </cewolf:chart>
    <cewolf:img chartid="pageChart2" renderer="/adChart" width="500" height="500"/>

</body>
</html>

5.網上的一些資料

    圖形                      中文                  對應的資料類(例子中的)（）在 public Object produceDataset(Map params）中返回
    ——————————————————————————————
    area                      面積圖,               TimeSeriesCollection(new TimeSeries("title", Month.class));
    areaxy                    面積XY圖              new DefaultIntervalCategoryDataset(seriesNames, categories, startValues, endValues)
    horizontalbar             水平柱條              new DefaultIntervalCategoryDataset(seriesNames, categories, startValues, endValues);
    horizontalbar3d           3D水平柱條            DefaultIntervalCategoryDataset(seriesNames, categories, startValues, endValues);
    line                      折線圖                DefaultIntervalCategoryDataset(seriesNames, categories, startValues, endValues);
                            DefaultCategoryDataset；

    pie                       餅圖                  new DefaultPieDataset();
    scatter                   XY散佈圖
    stackedhorizontalbar      管狀水平柱圖          DefaultIntervalCategoryDataset(seriesNames, categories, startValues, endValues);
    stackedverticalbar,       管狀垂直柱圖          DefaultIntervalCategoryDataset(seriesNames, categories, startValues, endValues);
    stackedverticalbar3d      3D管狀垂直柱圖        DefaultIntervalCategoryDataset(seriesNames, categories, startValues, endValues);
    timeseries                時間順序圖表            new TimeSeries("title", Month.class);
    verticalbar               垂直柱條圖            DefaultIntervalCategoryDataset(seriesNames, categories, startValues, endValues);
    verticalbar3d             3D垂直柱條圖          DefaultIntervalCategoryDataset(seriesNames, categories, startValues, endValues);
    xy, ??                    XY散佈圖              XYSeriesCollection(new XYSeries("Example XY Dataset")
    candlestick               股價圖                DefaultHighLowDataset；
    highlow                   高低數值圖            new DefaultHighLowDataset("Laures, Inc.", dates, high, low, open, close, volume)
    gantt,                    岡特圖                new TaskSeriesCollection()
    wind, ??
    signal                    訊號圖                SubSeriesDataset(TimeSeriesCollection(new TimeSeries()), int index)；
    verticalxybar             垂直柱狀數值圖        TimeSeriesCollection(new TimeSeries());
    pie3d                     3D餅圖                同餅圖

6.日期折線圖樣本(timeseries)
public class AdDateLineDataset implements DatasetProducer, Serializable {
private Number[] data;

private Date[] dateCategories;

        public AdDateLineDataset(Date[] d, Number[] a) {
            data = a;
            dateCategories = d;
        }

public Object produceDataset(Map params) {

TimeSeries ts1 = new TimeSeries(title, org.jfree.data.time.Day.class);

            for (int i = 0; i < data.length; i++) {
            ts1.add(new org.jfree.data.time.Day(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;
        }
        }

7.餅狀圖樣本(pie)
public class AdPieDataset implements DatasetProducer, Serializable {
        private Object data;

        final String[] categories = { "Docomo", "AU", "Softbank"};

        public AdPieDataset(Object obj) {
            data = obj;
        }

        public Object produceDataset(Map params) {
            DefaultPieDataset ds = new DefaultPieDataset();
            int[] iData;
            double[] dData;
            if (data instanceof int[]) {
                iData = (int[]) data;
                for (int i = 0; i < iData.length; i++) {
                    ds.setValue(categories[i], new Integer(iData[i]));
                    System.out.println("pvi:" + i + "=" + iData[i]);
                }
            }else if (data instanceof double[]) {
                dData = (double[]) data;
                for (int i = 0; i < dData.length; i++) {
                    ds.setValue(categories[i], new Double(dData[i]));
                    System.out.println("pvd:" + i + "=" + dData[i]);
                }
            }
            return ds;
        }

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

        /**
         * 50秒到期
         */
        public boolean hasExpired(Map params, Date since) {
            return (System.currentTimeMillis() - since.getTime()) > 50000;
        }
    }

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

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