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Struts2整合JFreeChar
1，导入struts2开发的jar包和struts2-jfreechart-plugin-2.3.16.3.jar
2，web.xml配置
<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>Struts2JFreeChart</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <filter> <filter-name>StrutsPrepareAndExecuteFilter</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>StrutsPrepareAndExecuteFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
3，edu.hhxy.chart.bar.BarCharAction.java(Action)
package edu.hhxy.chart.bar;import java.awt.Color;import org.jfree.chart.ChartFactory;import org.jfree.chart.JFreeChart;import org.jfree.chart.labels.ItemLabelAnchor;import org.jfree.chart.labels.ItemLabelPosition;import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;import org.jfree.chart.plot.CategoryPlot;import org.jfree.chart.plot.PlotOrientation;import org.jfree.chart.renderer.category.BarRenderer3D;import org.jfree.data.category.CategoryDataset;import org.jfree.data.general.DatasetUtilities;import org.jfree.ui.TextAnchor;import com.opensymphony.xwork2.ActionSupport;public class BarCharAction extends ActionSupport { /** * */ private static final long serialVersionUID = 1L; private JFreeChart chart; public JFreeChart getChart() { return chart; } @Override public String execute() throws Exception { double[][] data = http://www.mamicode.com/new double[][] { { 1320, 1110, 1123, 321 }, { 720, 210, 1423, 1321 }, { 830, 1310, 123, 521 }, { 400, 1110, 623, 321 } }; String[] rowKeys = { "苹果", "香蕉", "橘子", "梨子" }; String[] columnKeys = { "深圳", "北京", "上海", "南京" }; CategoryDataset dataset = DatasetUtilities.createCategoryDataset( rowKeys, columnKeys, data); chart = ChartFactory.createBarChart3D("水果销售统计图", "水果", "销售", dataset, PlotOrientation.VERTICAL, true, true, true); CategoryPlot plot = chart.getCategoryPlot(); // 设置网格背景颜色 plot.setBackgroundPaint(Color.white); // 设置网格竖线颜色 plot.setDomainGridlinePaint(Color.pink); // 设置网格横线颜色 plot.setRangeGridlinePaint(Color.pink); // 显示每个柱的数值，并修改该数值的字体属性 BarRenderer3D renderer = new BarRenderer3D(); renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator()); renderer.setBaseItemLabelsVisible(true); renderer.setBasePositiveItemLabelPosition(new ItemLabelPosition( ItemLabelAnchor.OUTSIDE12, TextAnchor.BASELINE_LEFT)); renderer.setItemLabelAnchorOffset(10D); // 设置平行柱的之间距离 renderer.setItemMargin(0.4); plot.setRenderer(renderer); return SUCCESS; }}
4，struts.xml中配置Action
<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"><struts> <package name="jfreechart" extends="jfreechart-default"> <action name="barChart" class="edu.hhxy.chart.bar.BarCharAction"> <result name="success" type="chart"> <param name="value">chart</param> <param name="type">png</param> <param name="width">700</param> <param name="height">500</param> </result> </action> </package> </struts>
5，index.jsp
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="ISO-8859-1"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>Insert title here</title></head><body> <img src="barChart" /></body></html>
Result:
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