vue集成chart.js的实现方法

Vue.directive('loaded-callback', {
 inserted: function (el, binding, vnode) {
 binding.value(el, binding, vnode)
 }
})

npm install chart.js --save

<template>
 <canvas refs="chartcanvas" v-loaded-callback="setCanvas"></canvas>
</template>
<script type="text/javascript">
require('chart.js')
export default{
 name: 'components-base-chartjs',
 props: {
 'data': {},
 'options': {},
 'type': {}
 },
 data:function(){
 return {
 canvas: null,
 chart: null
 }
 },
 watch:{
 canvas: function () { // chart对象生成时触发
 this.initChart()
 },
 data: {
 handler: function () { // 数据变化时触发
 this.updateChart()
 },
 deep: true
 }
 },
 destoryed:function (){
 if(this.cahrt){
 this.cahrt.destroy()
 }
 },
 computed: {
 currentOptions: function (){
 var options = {}
 if(this.options){ // 加载自定义配置参数
 for(var i in this.options){
 options[i] = this.options[i]
 }
 }
 return options
 }
 },
 methods: {
 setCanvas: function(el){ // dom生成时触发
 this.canvas = el
 },
 initChart: function () { // 更新chart结果
 if(this.data && this.currentOptions){ // 保证参数的存在
 this.chart = new Chart(this.canvas.getContext('2d'),{
 type: this.type,
 data: this.data,
 options: this.currentOptions
 })
 }
 },
 updateChart: function () { // 更新chart结果
 this.chart.data = JSON.parse(JSON.stringify(this.data))
 this.chart.update()
 }
 }
}
</script>

<chartjs :options="options" type="pie" :data="data"></chartjs>