springmvc demo

HelloWorldController.java

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package net.spring.controller;

import java.awt.Font;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.block.BlockBorder;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.chart.servlet.ServletUtilities;
import org.jfree.chart.title.LegendTitle;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.RectangleEdge;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class HelloWorldController {
 @RequestMapping("/hello")
 public ModelAndView helloWorld(HttpServletRequest request, HttpServletResponse response, ModelMap modelMap)
   throws Exception {
  // String message = "Hello World, Spring 3.0!";
  // System.out.println(message);
  // return new ModelAndView("test2", "message", message);
  // DefaultCategoryDataset dataset = new DefaultCategoryDataset();
  // dataset.addValue(300, "广州", "苹果");
  // dataset.addValue(200, "广州", "梨子");
  // dataset.addValue(500, "广州", "葡萄");
  // dataset.addValue(340, "广州", "芒果");
  // dataset.addValue(280, "广州", "荔枝");
  //
  // JFreeChart chart = ChartFactory.createBarChart3D("水果销量统计图", "水果", "销量", dataset, PlotOrientation.VERTICAL, false,
  // false, false);
  // row keys...
  String series1 = "First";
  String series2 = "Second";
  String series3 = "Third";

  // column keys...
  String type1 = "Type 1";
  String type2 = "Type 2";
  String type3 = "Type 3";
  String type4 = "Type 4";
  String type5 = "Type 5";
  String type6 = "Type 6";
  String type7 = "Type 7";
  String type8 = "Type 8";

  // create the dataset...
  DefaultCategoryDataset dataset = new DefaultCategoryDataset();

  dataset.addValue(1.0, series1, type1);
  dataset.addValue(4.0, series1, type2);
  dataset.addValue(3.0, series1, type3);
  dataset.addValue(5.0, series1, type4);
  dataset.addValue(5.0, series1, type5);
  dataset.addValue(7.0, series1, type6);
  dataset.addValue(7.0, series1, type7);
  dataset.addValue(8.0, series1, type8);

  dataset.addValue(5.0, series2, type1);
  dataset.addValue(7.0, series2, type2);
  dataset.addValue(6.0, series2, type3);
  dataset.addValue(8.0, series2, type4);
  dataset.addValue(4.0, series2, type5);
  dataset.addValue(4.0, series2, type6);
  dataset.addValue(2.0, series2, type7);
  dataset.addValue(1.0, series2, type8);

  dataset.addValue(4.0, series3, type1);
  dataset.addValue(3.0, series3, type2);
  dataset.addValue(2.0, series3, type3);
  dataset.addValue(3.0, series3, type4);
  dataset.addValue(6.0, series3, type5);
  dataset.addValue(3.0, series3, type6);
  dataset.addValue(4.0, series3, type7);
  dataset.addValue(3.0, series3, type8);

  // create the chart...
  JFreeChart chart = ChartFactory.createLineChart("血压水平分布图", // chart title
    "Type", // domain axis label
    "Value", // range axis label
    dataset, // data
    PlotOrientation.VERTICAL, // orientation
    true, // include legend
    true, // tooltips
    false // urls
    );

  // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
  LegendTitle legend = (LegendTitle) chart.getLegend();
  legend.setPosition(RectangleEdge.BOTTOM);
  legend.setBorder(BlockBorder.NONE);
  CategoryPlot plot = chart.getCategoryPlot();
  // customise the range axis...
  NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
  rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
  rangeAxis.setAutoRangeIncludesZero(true);
  rangeAxis.setUpperMargin(0.20);
  rangeAxis.setLabelAngle(Math.PI / 2.0);
  LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();

  renderer.setItemLabelsVisible(true);
  // 解决乱码问题
  getChartByFont(chart);
  String fileName = ServletUtilities.saveChartAsJPEG(chart, 800, 600, null, request.getSession());
  String chartURL = request.getContextPath() + "/chart?filename=" + fileName;
  modelMap.put("chartURL", chartURL);
  return new ModelAndView("demo", modelMap);
 }

 private static void getChartByFont(JFreeChart chart) {
  TextTitle textTitle = chart.getTitle();
  textTitle.setFont(new Font("宋体", Font.BOLD, 20));
  LegendTitle legend = chart.getLegend();
  if (legend != null) {
   legend.setItemFont(new Font("宋体", Font.BOLD, 20));
  }
  CategoryPlot plot = (CategoryPlot) chart.getPlot();
  CategoryAxis axis = plot.getDomainAxis();
  // 设置X轴坐标上标题的文字
  axis.setLabelFont(new Font("宋体", Font.BOLD, 22));
  // 设置X轴坐标上的文字，
  axis.setTickLabelFont(new Font("宋体", Font.BOLD, 12));

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

 

/WEB-INF/jsp/demo.jsp

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<%@ page language="java" contentType="text/html; charset=UTF-8"
 pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>柱状图</title>
</head>
<body>
 <img src="${chartURL}"  border=0>
</body>
</html>

 

 

/WEB-INF/web.xml

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<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

    <display-name>Spring3MVC</display-name>
   
    <servlet>
        <servlet-name>DisplayChart</servlet-name>
        <servlet-class>org.jfree.chart.servlet.DisplayChart</servlet-class>
    </servlet>

    <servlet-mapping>
        <servlet-name>DisplayChart</servlet-name>
        <url-pattern>/chart</url-pattern>
    </servlet-mapping> 
   
    <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>spring</servlet-name>
        <url-pattern>*.html</url-pattern>
     </servlet-mapping>

     <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

 

/WEB-INF/spring-servlet.xml

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<?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:p="http://www.springframework.org/schema/p"
 xmlns:context="http://www.springframework.org/schema/context"
 xsi:schemaLocation="http://www.springframework.org/schema/beans
  http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
  http://www.springframework.org/schema/context
  http://www.springframework.org/schema/context/spring-context-3.0.xsd">

 <context:component-scan base-package="net.spring.controller" />
 <bean id="viewResolver"
  class="org.springframework.web.servlet.view.UrlBasedViewResolver">
  <property name="viewClass"
   value="org.springframework.web.servlet.view.JstlView" />
  <property name="prefix" value="/WEB-INF/jsp/" />
  <property name="suffix" value=".jsp" />
 </bean>
</beans>