maven ssm结合制作JFreeChart

1 创建maven项目，编写pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>demo</groupId>
<artifactId>ssmchart</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<spring.version>4.3.9.RELEASE</spring.version>
<json.version>2.8.8</json.version>
</properties>
<dependencies>

<dependency>
<groupId>org.jfree</groupId>
<artifactId>jfreechart</artifactId>
<version>1.0.19</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>

<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>


<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${json.version}</version>
</dependency>

<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${json.version}</version>
</dependency>

<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>${json.version}</version>
</dependency>
</dependencies>

</project>

2 在项目中添加web对应的文件夹及文件

3 编写/WEB-INF/web.xml

<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/app-*.xml</param-value>
</context-param>
<filter>
<filter-name>charfilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>charfilter</filter-name>
<servlet-name>springapp</servlet-name>
</filter-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>springapp</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/web-mvc.xml</param-value>
</init-param>
</servlet>
<servlet>
<servlet-name>DisplayChart</servlet-name>
<servlet-class>org.jfree.chart.servlet.DisplayChart</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>springapp</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

<servlet-mapping>
<servlet-name>DisplayChart</servlet-name>
<url-pattern>/chart</url-pattern>
</servlet-mapping>

</web-app>

4 在main/resources目录下创建

spring/web-mvc.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">


<context:component-scan base-package="com.controller"/>


<mvc:default-servlet-handler />


<mvc:annotation-driven />


<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
id="internalResourceViewResolver">

<property name="prefix" value="/WEB-INF/jsp/" />

<property name="suffix" value=".jsp" />
</bean>

</beans>

5 编写业务层及持久层映射文件

</beans>

6 编写控制层代码

package com.controller;

import org.jfree.chart.ChartColor;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.servlet.ServletUtilities;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.awt.*;

@Controller
public class ChatAction {
@RequestMapping("/resultmap")
public String resultmap(){
return "/resultmap";
}

//显示柱状图
@RequestMapping(value = "/getColumnChart")
public ModelAndView getColumnChart(HttpServletRequest request, HttpServletResponse response, ModelMap modelMap) throws Exception{
//1. 获得数据集合
CategoryDataset dataset = getDataSet();
//2. 创建柱状图
JFreeChart chart = ChartFactory.createBarChart3D("学生对教师授课满意度", // 图表标题
"课程名", // 目录轴的显示标签
"百分比", // 数值轴的显示标签
dataset, // 数据集
PlotOrientation.VERTICAL, // 图表方向：水平、垂直
false, // 是否显示图例(对于简单的柱状图必须是false)
false, // 是否生成工具
false // 是否生成URL链接
);
//3. 设置整个柱状图的颜色和文字（char对象的设置是针对整个图形的设置）
chart.setBackgroundPaint(ChartColor.WHITE); // 设置总的背景颜色

//4. 获得图形对象，并通过此对象对图形的颜色文字进行设置
CategoryPlot p = chart.getCategoryPlot();// 获得图表对象
p.setBackgroundPaint(ChartColor.lightGray);//图形背景颜色
p.setRangeGridlinePaint(ChartColor.WHITE);//图形表格颜色

//5. 设置柱子宽度
BarRenderer renderer = (BarRenderer)p.getRenderer();
renderer.setMaximumBarWidth(0.06);

//解决乱码问题
getChartByFont(chart);

//6. 将图形转换为图片，传到前台
String fileName = ServletUtilities.saveChartAsJPEG(chart, 700, 400, null, request.getSession());
String chartURL=request.getContextPath() + "/chart?filename="+fileName;
System.out.println("image:"+chartURL);
modelMap.put("chartURL", chartURL);
return new ModelAndView("resultmap",modelMap);
}

//设置文字样式
private static void getChartByFont(JFreeChart chart) {
//1. 图形标题文字设置
TextTitle textTitle = chart.getTitle();
textTitle.setFont(new Font("宋体",Font.BOLD,20));

//2. 图形X轴坐标文字的设置
CategoryPlot plot = (CategoryPlot) chart.getPlot();
CategoryAxis axis = plot.getDomainAxis();
axis.setLabelFont(new Font("宋体",Font.BOLD,22)); //设置X轴坐标上标题的文字
axis.setTickLabelFont(new Font("宋体",Font.BOLD,15)); //设置X轴坐标上的文字

//2. 图形Y轴坐标文字的设置
ValueAxis valueAxis = plot.getRangeAxis();
valueAxis.setLabelFont(new Font("宋体",Font.BOLD,15)); //设置Y轴坐标上标题的文字
valueAxis.setTickLabelFont(new Font("sans-serif",Font.BOLD,12));//设置Y轴坐标上的文字
}

// 获取一个演示用的组合数据集对象
private static CategoryDataset getDataSet() {
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(40, "", "普通动物学");
dataset.addValue(50, "", "生物学");
dataset.addValue(60, "", "动物解剖学");
dataset.addValue(70, "", "生物理论课");
dataset.addValue(80, "", "动物理论课");
return dataset;
}

}

6 编写jsp代码

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<div style="text-align:center">
jfreechart _3D柱状图 <br><br>
点击显示柱状图<a href="getColumnChart">getMajorChart</a>
<br><br>
</div>
</body>

</html>

7 编写生成图表的页面

<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<img src="${chartURL}" width=600 height=400 border=0 color=gray>
${chartURL}
</body>
</html>

maven ssm结合制作JFreeChart

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