前兩天干活兒有個需求，在前端需要展示可折疊的Json樹，供開發人員查看，這里采用JsonView組件來實現，它是一款用于展示Json的Vue組件，支持大體積的Json文件快速解析渲染，下面記錄一下實現過程。

1.首先先下載好JsonView的組件：JsonView.vue，組件代碼如下：

<template> <div class='bgView'> <div : :style='’font-size:’ + fontSize+’px’'> <span @click='toggleClose' : v-if='length'> </span> <div class='content-wrap'> <p class='first-line'> <span v-if='jsonKey' class='json-key'>'{{jsonKey}}': </span> <span v-if='length'> {{prefix}} {{innerclosed ? (’...’ + subfix) : ’’}} <span class='json-note'> {{innerclosed ? (’ // count: ’ + length) : ’’}} </span> </span> <span v-if='!length'>{{isArray ? ’[]’ : ’{}’}}</span> </p> <div v-if='!innerclosed && length' class='json-body'> <template v-for='(item, index) in items'> <json-view :closed='closed' v-if='item.isJSON' :key='index' :json='item.value' :jsonKey='item.key' :isLast='index === items.length - 1'></json-view> <p v-else :key='index'> <span class='json-key'>{{(isArray ? ’’ : ’'’ + item.key + ’'’)}} </span> : <span class='json-value'>{{item.value + (index === items.length - 1 ? ’’ : ’,’)}} </span> </p> </template> <span v-show='!innerclosed' class='body-line'></span> </div> <p v-if='!innerclosed && length' class='last-line'> <span>{{subfix}}</span> </p> </div> </div> </div></template><script> export default { name: ’jsonView’, props: { json: [Object, Array], jsonKey: { type: String, default: ’’ }, closed: { type: Boolean, default: false }, isLast: { type: Boolean, default: true }, fontSize: { type: Number, default: 13 } }, created() { this.innerclosed = this.closed this.$watch(’closed’, () => { this.innerclosed = this.closed }) }, data() { return { innerclosed: true } }, methods: { isObjectOrArray(source) { const type = Object.prototype.toString.call(source) const res = type === ’[object Array]’ || type === ’[object Object]’ return res }, toggleClose() { if (this.innerclosed) { this.innerclosed = false } else { this.innerclosed = true } } }, computed: { isArray() { return Object.prototype.toString.call(this.json) === ’[object Array]’ }, length() { return this.isArray ? this.json.length : Object.keys(this.json).length }, subfix() { return (this.isArray ? ’]’ : ’}’) + (this.isLast ? ’’ : ’,’) }, prefix() { return this.isArray ? ’[’ : ’{’ }, items() { if (this.isArray) { return this.json.map(item => { const isJSON = this.isObjectOrArray(item) return { value: isJSON ? item : JSON.stringify(item), isJSON, key: ’’ } }) } const json = this.json return Object.keys(json).map(key => { const item = json[key] const isJSON = this.isObjectOrArray(item) return { value: isJSON ? item : JSON.stringify(item), isJSON, key } }) } } }</script><style> .bgView { background-color: #fafafa; } .json-view { position: relative; display: block; width: 100%; height: 100%; white-space: nowrap; padding-left: 20px; box-sizing: border-box; } .json-note { color: #909399; } .json-key { color: rgb(147, 98, 15); } .json-value { color: rgb(24, 186, 24); } .json-item { margin: 0; padding-left: 20px; } .first-line { padding: 0; margin: 0; } .json-body { position: relative; padding: 0; margin: 0; } .json-body .body-line { position: absolute; height: 100%; width: 0; border-left: dashed 1px #bbb; top: 0; left: 2px; } .last-line { padding: 0; margin: 0; } .angle { position: absolute; display: block; cursor: pointer; float: left; width: 20px; text-align: center; left: 0; } .angle::after { content: ''; display: inline-block; width: 0; height: 0; vertical-align: middle; border-top: solid 4px #333; border-left: solid 6px transparent; border-right: solid 6px transparent; } .angle.closed::after { border-left: solid 4px #333; border-top: solid 6px transparent; border-bottom: solid 6px transparent; }</style>

2.在需要使用的vue頁面中引用JsonView組件

import JsonView from ’@/components/JsonView’

3.定義Json數據變量

jsonData:{},

4.頁面展示代碼

<JsonView :json='jsonData'></JsonView>

5.實現效果如下：

JsonViewAttributes

到此這篇關于Vue之使用JsonView來展示Json樹的文章就介紹到這了,更多相關Vue使用JsonView展示Json樹內容請搜索好吧啦網以前的文章或繼續瀏覽下面的相關文章希望大家以后多多支持好吧啦網！