<!-- 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", { colorSet: "colorSet3", title: { text: "Mean Air Temperature vs Mean Relative Humidity" }, axisX: { title: "Air Temperature (°C)", suffix: " °C" }, axisY: { title: "Relative Humidity", suffix: "%" }, toolTip: { shared: true }, data: [{ type: "line", name: "Relative Humidity", toolTipContent: "<strong>Air Temperature:</strong> {x} °C <br> <span style=\"color:#8CA1BC\">Relative Humidity</span>: {y}%", dataPoints: dps[0] }] }); var yValue; var xValue; <c:forEach items="${dataPointsList}" var="dataPoints" varStatus="loop"> <c:forEach items="${dataPoints}" var="dataPoint"> yValue = parseFloat("${dataPoint.y}"); xValue = parseFloat("${dataPoint.x}"); dps[parseInt("${loop.index}")].push({ x : xValue, y : yValue, }); </c:forEach> </c:forEach> chart.render(); createError(); function createError(){ var dps = [ { x: 27.1, y: [81.84, 85.42] }, { x: 28.2, y: [78.41, 81.12] }, { x: 29.0, y: [74.97, 77.85] }, { x: 30.0, y: [71.08, 74.12] }, { x: 30.9, y: [66.67, 72.04] }, { x: 31.9, y: [65.12, 67.46] }, { x: 32.9, y: [63.94, 67.27] }, { x: 33.9, y: [60.90, 63.24] }, { x: 34.9, y: [57.45, 62.08] } ]; chart.addTo("data", {type: "error", name: "Error Range", toolTipContent: "<span style=\"color:#36845C\">{name}</span>: {y[0]}% - {y[1]}%", dataPoints: dps}); } } </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 { map = new HashMap<Object,Object>(); map.put("x", 27.1); map.put("y", 83.16);dataPoints1.add(map); map = new HashMap<Object,Object>(); map.put("x", 28.2); map.put("y", 79.97);dataPoints1.add(map); map = new HashMap<Object,Object>(); map.put("x", 29); map.put("y", 76.52);dataPoints1.add(map); map = new HashMap<Object,Object>(); map.put("x", 30); map.put("y", 72.28);dataPoints1.add(map); map = new HashMap<Object,Object>(); map.put("x", 30.9); map.put("y", 69.83);dataPoints1.add(map); map = new HashMap<Object,Object>(); map.put("x", 31.9); map.put("y", 66.4);dataPoints1.add(map); map = new HashMap<Object,Object>(); map.put("x", 32.9); map.put("y", 65.86);dataPoints1.add(map); map = new HashMap<Object,Object>(); map.put("x", 33.9); map.put("y", 62);dataPoints1.add(map); map = new HashMap<Object,Object>(); map.put("x", 34.9); map.put("y", 59.99);dataPoints1.add(map); list.add(dataPoints1); } public static List<List<Map<Object, Object>>> getCanvasjsDataList() { return list; } }