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Detailed graphic and text explanation of dynamic pie chart and column chart using ajax
Detailed graphic and text explanation of dynamic pie chart and column chart using ajax
This time I will bring you a detailed graphic and text explanation of the ajax implementation of dynamic pie charts and column charts. What are the precautions for ajax to implement dynamic pie charts and column charts. The following is a practical case. Get up and take a look.
This article takes column chart and pie chart ajax dynamic assignment as an example
1. Pie chart assignment Steps
(1) jsp page
<!-- 引入echarts官方js --> <script src="js/echarts.js"></script> <body> <!-- 为 ECharts 准备一个具备大小（宽高）的 DOM 饼形图 --> <p id="first" style="width: 600px;height:400px;"></p> [html] view plain copy </body>
(2) js page
//饼图模板
var dom = document.getElementById("first");
var myChart = echarts.init(dom);
var app = {};
option = null;
option = {
title : {
text: '用户位置记录',
subtext: '',
x:'center'
},
tooltip : {
trigger: 'item',
formatter: "{a} <br/>{b} : {c} ({d}%)"
},
legend: {
orient : 'vertical',
x : 'left',
data:[]
},
toolbox: {
show : true,
feature : {
mark : {show: true},
dataView : {show: true, readOnly: false},
magicType : {
show: true,
type: ['pie', 'funnel'],
option: {
funnel: {
x: '25%',
width: '50%',
funnelAlign: 'left',
max: 1548
}
}
},
restore : {show: true},
saveAsImage : {show: true}
}
},
calculable : true,
series : [
{
name:'',
type:'pie',
radius : '55%',
center: ['50%', '60%'],
data:[]
}
]
};
;
if (option && typeof option === "object") {
myChart.setOption(option, true);
}
//饼图动态赋值
var year = $("#year-search").val();
var mouth = $("#mouth-search").val();
$.ajax({
type: "get",
url: rootPath+"/wxbound/getPieDataByMouth.action",
data : {"year":year,"mouth":mouth},
cache : false, //禁用缓存
dataType: "json",
success: function(result) {
var names=[];//定义两个数组
var nums=[];
$.each(result,function(key,values){ //此处我返回的是list<String,map<String,String>>循环map
names.push(values.province_name);
var obj = new Object();
obj.name = values.province_name;
obj.value = values.count;
nums.push(obj);
});
myChart.setOption({ //加载数据图表
legend: {
data: names
},
series: {
// 根据名字对应到相应的系列
name: ['数量'],
data: nums
}
});
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
alert("查询失败");
}
});(3) The background code can be based on your own code
(4) Display style
##2. Column chart assignment steps
(1) jsp page
<!-- 引入echarts官方js --> <script src="js/echarts.js"></script> <body> <!-- 为 ECharts 准备一个具备大小（宽高）的 DOM 柱形图 --> <p id="second" style="width: 600px;height:400px;"></p> </body>
(2) js page
//柱形图模板
var domLong = document.getElementById("second");
var myChartSecond = echarts.init(domLong);
var app = {};
option = null;
option = {
color: ['#3398DB'],
tooltip : {
trigger: 'axis',
axisPointer : { // 坐标轴指示器，坐标轴触发有效
type : 'shadow' // 默认为直线，可选为：'line' | 'shadow'
}
},
grid: {
left: '3%',
right: '4%',
bottom: '3%',
containLabel: true
},
xAxis : [
{
type : 'category',
data : [],
axisTick: {
alignWithLabel: true
}
}
],
yAxis : [
{
type : 'value'
}
],
series : [
{
name:'直接访问',
type:'bar',
barWidth: '60%',
data:[]
}
]
};
if (option && typeof option === "object") {
myChartSecond.setOption(option, true);
}
//给柱形图赋值
var year = $("#year-search").val();
$.ajax({
type: "post",
url: rootPath+"/wxbound/getWxboundList.action",
data : {"year":year},
cache : false, //禁用缓存
dataType: "json",
success: function(result) {
console.log(result);
var linNames=[];
var linNums=[];
$.each(result.lin,function(key,values){
linNames.push(values.mouth);
linNums.push(values.count);
});
//柱形图赋值
myChartSecond.setOption({ //加载数据图表
xAxis: {
data: linNames
},
series: {
// 根据名字对应到相应的系列
name: ['数量'],
data: linNums
}
});
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
alert("查询失败");
}
});
}(3) The background code part can be based on your own needs. . .
(4) Picture style
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