Echart动态加载数据

//柱状图.
function chart() {
require([ 'echarts', 'echarts/chart/bar' // 使用柱状图就加载bar模块，按需加载
], function(ec) {
// 基于准备好的dom，初始化echarts图表
var myChart = ec.init(document.getElementById('main'));

var option = {
title : {
text : '',
subtext : '模板使用统计'
},
tooltip : {
trigger : 'axis'
},
legend : {
data : [ '转码成功数', '转码失败数' ]
},
toolbox : {
show : true,
feature : {
mark : {
show : true
},
dataView : {
show : true,
readOnly : false
},
magicType : {
show : true,

type : [ 'line', 'bar' ]
},
restore : {
show : true
},
saveAsImage : {
show : true
}
}
},
calculable : true,
xAxis : [ {
type : 'category',
data : (function() {
//var input_time = $("#rangeA").val();
var res = [];
$.ajax({
cache : false,
type : 'post',
//contentType: "application/json", 
url : '${ctx}/template/findTemplateNameById/',
data : {},
async : false,
dataType : "json",
success : function(map) {

for ( var key in map) {

//alert("map["+key+"]:"+map[key]); 
res.push(map[key]);