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
<action name="queryItemsJson" class="com.bestplan.action.JsonAction" method="jsonTest">
<result type="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