<!-- chart.jsp--> <%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> <!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=ISO-8859-1"> <script type="text/javascript"> window.onload = function() { var dps = [[], [], [], []]; var chart = new CanvasJS.Chart("chartContainer", { animationEnabled: true, title:{ text: "Student Grades" }, toolTip: { shared: true, reversed: true }, legend: { reversed: true, cursor: "pointer", itemclick: toggleDataSeries }, axisY: { title: "Number of Students" }, data: [{ type: "stackedColumn100", name: "Grade D", showInLegend: true, yValueFormatString: "#,##0 students", dataPoints: dps[0] },{ type: "stackedColumn100", name: "Grade C", showInLegend: true, yValueFormatString: "#,##0 students", dataPoints: dps[1] },{ type: "stackedColumn100", name: "Grade B", showInLegend: true, yValueFormatString: "#,##0 students", dataPoints: dps[2] },{ type: "stackedColumn100", name: "Grade A", showInLegend: true, yValueFormatString: "#,##0 students", dataPoints: dps[3] }] }); function toggleDataSeries(e){ if (typeof(e.dataSeries.visible) === "undefined" || e.dataSeries.visible) { e.dataSeries.visible = false; } else{ e.dataSeries.visible = true; } chart.render(); } var yValue; var label; <c:forEach items="${dataPointsList}" var="dataPoints" varStatus="loop"> <c:forEach items="${dataPoints}" var="dataPoint"> yValue = parseFloat("${dataPoint.y}"); label = "${dataPoint.label}"; dps[parseInt("${loop.index}")].push({ label : label, y : yValue }); </c:forEach> </c:forEach> chart.render(); } </script> </head> <body> <div id="chartContainer" style="height: 370px; width: 100%;"></div> <script src="https://cdn.canvasjs.com/canvasjs.min.js"></script> </body> </html>
//CanvasjsChartController.java package com.canvasjs.chart.controllers; import java.util.List; import java.util.Map; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import com.canvasjs.chart.services.CanvasjsChartService; @Controller @RequestMapping("/canvasjschart") public class CanvasjsChartController { @Autowired private CanvasjsChartService canvasjsChartService; @RequestMapping(method = RequestMethod.GET) public String springMVC(ModelMap modelMap) { List<List<Map<Object, Object>>> canvasjsDataList = canvasjsChartService.getCanvasjsChartData(); modelMap.addAttribute("dataPointsList", canvasjsDataList); return "chart"; } }
//CanvasjsChartService.java package com.canvasjs.chart.services; import java.util.List; import java.util.Map; public interface CanvasjsChartService { List<List<Map<Object, Object>>> getCanvasjsChartData(); } //CanvasjsChartServiceImpl.java package com.canvasjs.chart.services; import java.util.List; import java.util.Map; import org.springframework.beans.factory.annotation.Autowired; import com.canvasjs.chart.daos.CanvasjsChartDao; public class CanvasjsChartServiceImpl implements CanvasjsChartService { @Autowired private CanvasjsChartDao canvasjsChartDao; public void setCanvasjsChartDao(CanvasjsChartDao canvasjsChartDao) { this.canvasjsChartDao = canvasjsChartDao; } @Override public List<List<Map<Object, Object>>> getCanvasjsChartData() { return canvasjsChartDao.getCanvasjsChartData(); } }
//CanvasjsChartDao.java package com.canvasjs.chart.daos; import java.util.List; import java.util.Map; public interface CanvasjsChartDao { List<List<Map<Object, Object>>> getCanvasjsChartData(); } //CanvasjsChartDaoImpl.java package com.canvasjs.chart.daos; import java.util.List; import java.util.Map; import com.canvasjs.chart.data.CanvasjsChartData; public class CanvasjsChartDaoImpl implements CanvasjsChartDao { @Override public List<List<Map<Object, Object>>> getCanvasjsChartData() { return CanvasjsChartData.getCanvasjsDataList(); } }
//CanvasjsChartData.java package com.canvasjs.chart.data; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; public class CanvasjsChartData { static Map<Object,Object> map = null; static List<List<Map<Object,Object>>> list = new ArrayList<List<Map<Object,Object>>>(); static List<Map<Object,Object>> dataPoints1 = new ArrayList<Map<Object,Object>>(); static List<Map<Object,Object>> dataPoints2 = new ArrayList<Map<Object,Object>>(); static List<Map<Object,Object>> dataPoints3 = new ArrayList<Map<Object,Object>>(); static List<Map<Object,Object>> dataPoints4 = new ArrayList<Map<Object,Object>>(); static { map = new HashMap<Object,Object>(); map.put("label", "Physics"); map.put("y", 20);dataPoints1.add(map); map = new HashMap<Object,Object>(); map.put("label", "Chemistry"); map.put("y", 5);dataPoints1.add(map); map = new HashMap<Object,Object>(); map.put("label", "Math"); map.put("y", 25);dataPoints1.add(map); map = new HashMap<Object,Object>(); map.put("label", "Biology"); map.put("y", 32);dataPoints1.add(map); map = new HashMap<Object,Object>(); map.put("label", "Computer Science"); map.put("y", 10);dataPoints1.add(map); map = new HashMap<Object,Object>(); map.put("label", "English"); map.put("y", 15);dataPoints1.add(map); map = new HashMap<Object,Object>(); map.put("label", "Physics"); map.put("y", 10);dataPoints2.add(map); map = new HashMap<Object,Object>(); map.put("label", "Chemistry"); map.put("y", 20);dataPoints2.add(map); map = new HashMap<Object,Object>(); map.put("label", "Math"); map.put("y", 50);dataPoints2.add(map); map = new HashMap<Object,Object>(); map.put("label", "Biology"); map.put("y", 18);dataPoints2.add(map); map = new HashMap<Object,Object>(); map.put("label", "Computer Science"); map.put("y", 30);dataPoints2.add(map); map = new HashMap<Object,Object>(); map.put("label", "English"); map.put("y", 55);dataPoints2.add(map); map = new HashMap<Object,Object>(); map.put("label", "Physics"); map.put("y", 60);dataPoints3.add(map); map = new HashMap<Object,Object>(); map.put("label", "Chemistry"); map.put("y", 50);dataPoints3.add(map); map = new HashMap<Object,Object>(); map.put("label", "Math"); map.put("y", 20);dataPoints3.add(map); map = new HashMap<Object,Object>(); map.put("label", "Biology"); map.put("y", 26);dataPoints3.add(map); map = new HashMap<Object,Object>(); map.put("label", "Computer Science"); map.put("y", 20);dataPoints3.add(map); map = new HashMap<Object,Object>(); map.put("label", "English"); map.put("y", 10);dataPoints3.add(map); map = new HashMap<Object,Object>(); map.put("label", "Physics"); map.put("y", 10);dataPoints4.add(map); map = new HashMap<Object,Object>(); map.put("label", "Chemistry"); map.put("y", 25);dataPoints4.add(map); map = new HashMap<Object,Object>(); map.put("label", "Math"); map.put("y", 5);dataPoints4.add(map); map = new HashMap<Object,Object>(); map.put("label", "Biology"); map.put("y", 24);dataPoints4.add(map); map = new HashMap<Object,Object>(); map.put("label", "Computer Science"); map.put("y", 40);dataPoints4.add(map); map = new HashMap<Object,Object>(); map.put("label", "English"); map.put("y", 20);dataPoints4.add(map); list.add(dataPoints1); list.add(dataPoints2); list.add(dataPoints3); list.add(dataPoints4); } public static List<List<Map<Object, Object>>> getCanvasjsDataList() { return list; } }