Spring MVC Charts & Graphs with Large number of Data Points

Download Spring MVC Chart Samples 
<!-- 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", {
	zoomEnabled: true,
	animationEnabled: true,
	title: {
		text: "Try Zooming - Panning"
	},
	axisY: {
		includeZero: false,
		lineThickness: 1
	},
	data: [{
		type: "line",
		dataPoints: dps[0]
	}]
});

var xValue;
var yValue;

<c:forEach items="${dataPointsList}" var="dataPoints" varStatus="loop">	
	<c:forEach items="${dataPoints}" var="dataPoint">
		xValue = parseInt("${dataPoint.x}");
		yValue = parseFloat("${dataPoint.y}");
		dps[parseInt("${loop.index}")].push({
			x : xValue,
			y : yValue,
		});		
	</c:forEach>	
</c:forEach> 

var startTime = new Date();
chart.render();
var endTime = new Date();
document.getElementById("timeToRender").innerHTML = "Time to Render: " + (endTime - startTime) + "ms";

}
</script>
<style>
	#timeToRender {
		position:absolute; 
		top: 10px; 
		font-size: 20px; 
		font-weight: bold; 
		background-color: #d85757;
		padding: 0px 4px;
		color: #ffffff;
	}
</style>
</head>
<body>
	<div id="chartContainer" style="height: 370px; width: 100%;"></div>
	<span id="timeToRender"></span>
	<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;
import java.util.Random;

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 {
		int limit = 50000;
		int y = 100;    
		Random rand = new Random();
		
		for (int i = 0; i < limit; i += 1) {
			y += rand.nextInt(11) - 5;
			map = new HashMap<Object,Object>(); map.put("x", i); map.put("y", y);dataPoints1.add(map);
		}
		
		list.add(dataPoints1);
	}

	public static List<List<Map<Object, Object>>> getCanvasjsDataList() {
		return list;
	}
}