下载地址： http://www.javasp.net/jinxin/jinxin.rar (Sonic1.0)
本来可以用cwolf的。但是cwolf不能做统计。返照他的功能自己做了一个。觉得还不错。开发的时候省略了很多JFreeChart的东西。直接做一个连数据的CLASS就可以了。下面是开发指南，希望对要用JFREECHART的人有帮助。
优点：
简化了生成图形的繁琐代码，用TagLib封装了。只要数据对象就可以了
缺点：
只能生成饼图 和 柱图 其他图还没有做
Sonic Chart Tutorial
SETUP for installing the tag library
(First time user)
Tutorial: Step1
How to Install ( Making sure you have the Jar File )
To use the tag library, you must first include the jar file into your project.
Put the following JAR files of the /lib directory into your web applications /WEB-INF/lib directory:
l Sonic. jar
l jfreechart-0.9.20.jar
l jcommon-0.9.5.jar
l Commons-logging. jar
Install the sonic Servlet in your Web App
You must add the following code to the web.xml file t o let yours project know the location of the TLDS
<servlet>
<servlet>
<servlet-name> DisplayChart </servlet-name>
<servlet-class> rg.jfree.chart.servlet.DisplayChart </servlet-class>
</servlet>
Additionally you should provide a servlet-mapping to tell the container which URL maps to your sonic rendering servlet.
<servlet-mapping>
<servlet-mapping>
<servlet-name> DisplayChart </servlet-name>
<url-pattern> servlet/DisplayChart </url-pattern>
</servlet-mapping>
Additionally you should proide a taglib to tell container which URL to find sonic.tld
<taglib>
<taglib>
<taglib-uri> /WEB-INF/sonic.tld </taglib-uri>
<taglib-location> /WEB-INF/sonic.tld </taglib-location>
</taglib>
二． Tutorial: Step 2
Provide a DatasetProducer
1.How to Create a PeChart DatasetProducer
l Createa a java file such ByUsingPeople_PieDB.java
Note :
1. In ByUsingPeople_PieDB.java file you must implements ProductDataSetInterface, Serializable
Below is ByUsingPeople_PieDB.java detail
import org.jfree.data.DefaultPieDataset;
import java.util.ArrayList;
import net.javasp.www.chartfactorymethod.creator.ChartCreatorInterface.ProductDataSetInterface;import java.io.Serializable;
public class IndustryGroupRequire implements ProductDataSetInterface, Serializable{
public ArrayList produceDataset() throws Exception {
// Create a DefaultPieDataset object
DefaultPieDataset ds = new DefaultPieDataset();
String total = null;
String percent = null;
ArrayList list = new ArrayList();
// The data which need set into DefaultPieDataset object
ds.setValue(" 第一产业比重 ", 36);
ds.setValue(" 第二产业比重 ", 24);
ds.setValue(" 第三产业比重 ", 20);
// Below chart show total info
String[] totalname = {" 所占比重： ", ""};
list.add(ds);
list.add("80"+"%");
list.add("");
list.add(totalname); //3
list.add("other"); //
return list;
}
}
Tutorial: Step 3
Define the chart in your JSP
1. Create a jsp file such as piechart.jsp
Note:
1. The taglib sonic attribute must same to <jsp useBean id> attribute Such as <sonic:plotchart id=”pieData” …> and <jsp:useBean id=”pieData” …>
2. type ="piechart" type attribute must be “piechart”
Below is piechart.jsp detail
piechart.jsp
<%@ page contentType="text/html; charset=GB2312" %>
<%@taglib uri='/WEB-INF/sonic.tld' prefix='sonic' %>
<jsp:useBean id =" pieData " class =" net.javasp.www.piechartdataset .ByUsingPeople_PieDB "/>
<html>
<head>
<title>
按行业分组的需求人数
</title>
</head>
<body bgcolor="#ffffff">
<div align="center">
<sonic: plotchart id ="pieData" type ="piechart" name =" 按行业分组的需求人数 " hight ="700" width ="700" / >
</div>
</body>
</html>
2.How to Create a Column Chart DatasetProducer
Note :
l Createa a java file such SupplyTotalCount .java
In ByUsingPeople_PieDB.java file you must implements ProductDataSetInterface, Serializable
import net.javasp.www.chartfactorymethod.creator.ChartCreatorInterface.ProductDataSetInterface; import java.io.Serializable;
import java.util.ArrayList;
import org.jfree.data.CategoryDataset;
import org.jfree.data.DatasetUtilities;
/**
* <p>Title: Colum3DproduceDataset</p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: www.javasp.net</p>
* @author Jstar
* @version 1.0
*/
public class SupplyTotalCount implements ProductDataSetInterface, Serializable {
public SupplyTotalCount() {
}
public ArrayList produceDataset() throws Exception {
int total = 0;
int percent = 0;
ArrayList list = new ArrayList();
//--------------------------------- 需求人数 ----- 求职人数
double[][] date = new double[][] {{322, 261}, {128, 240}};
String[] rowKeys = {" 上期结转 ", " 本期新增 "};
String[] columnKeys = {" 需求人数 ", " 求职人数 "};
String[] totalname = {" 需求人数 ", " 求职人数 "};
CategoryDataset ds = DatasetUtilities .createCategoryDataset(rowKeys,columnKeys, date);
//total
for (int i = 0; i < 1; i++) {
for (int j = 0; j < date.length; j++) {
total += date[j][i];
}
}
//percent
for (int a = 1; a < 2; a++) {
for (int b = 0; b < date.length ; b++) {
percent += date[b][a];
}
}
list.add(ds); //0
list.add(Integer.toString(total)); //1
list.add(Integer.toString(percent)); //2
list.add(totalname); //3
list.add("other"); //4
return list;
}
}
Define the chart in your JSP
2. Create a jsp file such as columnchart.jsp
Note:
3. The taglib sonic attribute must same to <jsp useBean id> attribute Such as <sonic:plotchart id=” columndata ” …> and <jsp:useBean id=” columndata ” …>
4. type =" columndata " type attribute must be “ columndata ”
Below is piechart.jsp detail
piechart.jsp
<%@ page contentType="text/html; charset=GB2312" %>
<%@taglib uri='/WEB-INF/sonic.tld' prefix='sonic' %>
<jsp:useBean id =" columndata " class =" net.javasp.www.columndataset.SupplyTotalCount "/>
<html>
<head>
<title>
供求总体人数
</title>
</head>
<body bgcolor="#ffffff">
<div align="center">
<sonic: plotchart id =" columndata " type =" columchart " name=" 供求总体人数 " width=" 500 " hight=" 350 " / >
</div>
</body>
</html>
