Struts2+json+hignchart(简单柱状图实现--适合jquery小白)

做了一个简单的基于Struts2 + Json + HighChart的小例子，费了一下午+晚上的时间，虽然简单，但对于我这种Jquery+Ajax小白的人还是很值得记录的。

哈哈哈

# 0. 关键点找到highchart的模板网站

https://www.hcharts.cn/docs/basic-tooltip

# 1. 关键点，在struts.xml中配置返回类型为json

<param name="root">dataMap</param>

</result>

# 2. 关键点2

public class JsonAction {
private Map<String, Object> dataMap;
public String jsonTest(){

dataMap = new HashMap<String,Object>();
dataMap.clear();
List<List<Float>> aveTimeForCpsWay = new ArrayList<List<Float>>();
for(int x=0;x<4;x++){
List<Float> temp = new ArrayList<Float>();
for(int i=0;i<12;i++){
temp.add((new Random().nextFloat())*100); // 随机产生12个float数
}
aveTimeForCpsWay.add(temp);
}

List<String> name = new ArrayList<String>();
name.add("Tokyo");
name.add("New York");
name.add("London");
name.add("Berlin");

dataMap.put("dataArr", aveTimeForCpsWay);
dataMap.put("nameArr", name);

return "success";
}

public Map<String, Object> getDataMap() {
return dataMap;
}

public void setDataMap(Map<String, Object> dataMap) {
this.dataMap = dataMap;
}

}

# 3. 关键点

<%@ page language="java" contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"%>

<%@ taglib prefix="s" uri="/struts-tags" %>

<!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=UTF-8">

<title>Insert title here</title>

<script src="js/jquery.1.9.1.min.js"></script>

<script src="js/highcharts.js"></script>

<script type="text/javascript">

function requestJson(){

    alert("nihao");

    $.ajax({

        type:'GET',

        url:'queryItemsJson.action',

        contentType:'application/json;charset=utf-8',

        //数据格式是json串

        dataType:"html", //接受响应的数据类型

        success:function(data){//返回json结果

            alert(data);

            var d = eval("("+data+")");

        var chart = new Highcharts.Chart({

            chart: {

                renderTo:'container',

                type: 'column'

            },

            title: {

                text: 'Monthly Average Rainfall'

            },

            subtitle: {

                text: 'Source: WorldClimate.com'

            },

            xAxis: {

                categories: [

                    'Jan',

                    'Feb',

                    'Mar',

                    'Apr',

                    'May',

                    'Jun',

                    'Jul',

                    'Aug',

                    'Sep',

                    'Oct',

                    'Nov',

                    'Dec'

                ],

                crosshair: true

            },

            yAxis: {

                min: 0,

                title: {

                    text: 'Rainfall (mm)'

                }

            },

            tooltip: {

                headerFormat: '<span style="font-size:10px">{point.key}</span><table>',

                pointFormat: '<tr><td style="color:{series.color};padding:0">{series.name}: </td>' +

                '<td style="padding:0"><b>{point.y:.1f} mm</b></td></tr>',

                footerFormat: '</table>',

                shared: true,

                useHTML: true

            },

            plotOptions: {

                column: {

                    pointPadding: 0.2,

                    borderWidth: 0

                }

            },

            series: [{

                name: d.nameArr[],

                data: d.dataArr[]

            }, {

                name: d.nameArr[1],

                data: d.dataArr[1]

            }, {

                name: d.nameArr[2],

                data: d.dataArr[2]

            }, {

                name: d.nameArr[3],

                data: d.dataArr[3]

            }]

        });

        }

        }

);

}

</script>

</head>

<body>

<input type="button" onclick="requestJson()" value="请求是json，输出是json"><div id="mydiv"></div>

  <div id="container" style="min-width:400px;height:400px"></div>

</body>

</body>

</html>

效果图

巴特西

Struts2+json+hignchart(简单柱状图实现--适合jquery小白)

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