1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
| <template>
| <div :class="className" :style="{ height: height, width: width }" />
| </template>
|
| <script>
| import chartResize from './mixins/chart-resize'
|
| export default {
| mixins: [chartResize],
| props: {
| className: {
| type: String,
| default: 'chart'
| },
| width: {
| type: String,
| default: '100%'
| },
| height: {
| type: String,
| default: '100%'
| },
| // 父组件传递过来的图表数据
| chartData: {
| type: Object,
| required: true
| }
| },
| data () {
| return {
| // Echarts实例
| chart: null
| }
| },
| watch: {
| /* 如果图表数据是后台获取的，监听父组件中的数据变化，重新触发Echarts */
| chartData: {
| deep: true,
| handler (val) {
| this.setOptions(val)
| }
| }
| },
| mounted () {
| /* 图表初始化 */
| this.$nextTick(() => {
| this.initChart()
| })
| },
| beforeDestroy () {
| if (!this.chart) {
| return
| }
| /* 释放图表实例 */
| this.chart.dispose()
| /* dispose 会释放内部占用的一些资源和事件绑定，但是解除实例的引用我们是做不到的，所以需要重新赋值为null */
| this.chart = null
| },
| methods: {
| initChart () {
| this.chart = this.$echarts.init(this.$el)
| this.setOptions(this.chartData)
| },
|
| setOptions ({ days, data1, data2 } = {}) {
| this.chart.setOption({
| title: {
| text: '堆叠柱状图',
| textStyle: {
| fontSize: 15
| }
| },
| 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: {
| top: 35,
| left: '2%',
| right: '2%',
| bottom: '3%',
| containLabel: true
| },
| xAxis: [{
| type: 'category',
| data: days,
| axisTick: {
| alignWithLabel: true
| }
| }],
| yAxis: [{
| type: 'value',
| axisTick: {
| show: false
| }
| }],
| series: [{
| name: '数量一',
| type: 'bar',
| stack: 'vistors',
| barWidth: '60%',
| data: data1,
| animationDuration: 2000
| },
| {
| name: '数量二',
| type: 'bar',
| stack: 'vistors',
| barWidth: '60%',
| data: data2,
| animationDuration: 2000
| }]
| })
| }
| }
| }
| </script>
|
|
