1. 下载指定版本的包 (避免引发不必要的错误)

yarn add codemirror@^5.64.0

2. 导入需要的文件

import CodeMirror from 'codemirror'import 'codemirror/addon/lint/lint.css'import 'codemirror/addon/fold/foldgutter.css'import 'codemirror/lib/codemirror.css'import 'codemirror/theme/rubyblue.css'import 'codemirror/mode/javascript/javascript'import 'codemirror/addon/lint/lint'import 'codemirror/addon/lint/json-lint'// 折叠import 'codemirror/addon/fold/foldgutter.css'import 'codemirror/addon/fold/foldcode'import 'codemirror/addon/fold/foldgutter'import 'codemirror/addon/fold/brace-fold'import 'codemirror/addon/fold/comment-fold'

3. 注册

<template><textarea ref="mycode" class="textarea" v-model="logInfo"></textarea>
</template><script>import * as jsonlint from 'json-lint'window['jsonlint'] = jsonlintimport CodeMirror from 'codemirror'import 'codemirror/addon/lint/lint.css'import 'codemirror/addon/fold/foldgutter.css'import 'codemirror/lib/codemirror.css'import 'codemirror/theme/rubyblue.css'import 'codemirror/mode/javascript/javascript'import 'codemirror/addon/lint/lint'import 'codemirror/addon/lint/json-lint'// 折叠import 'codemirror/addon/fold/foldgutter.css'import 'codemirror/addon/fold/foldcode'import 'codemirror/addon/fold/foldgutter'import 'codemirror/addon/fold/brace-fold'import 'codemirror/addon/fold/comment-fold'export default {data() {return {logInfo: null,editorText: null}},components: {},created() {},async mounted() {const result = await this.$api.getLogDataInfo(null, this.$route.query.serialNo)this.logInfo = JSON.stringify(result)this.editorText = CodeMirror.fromTextArea(this.$refs.mycode, {mode: 'application/json',lineNumbers: true, // 显示行号tabSize: 2,lint: true,styleActiveLine: true,foldGutter: true, // 启用折叠效果gutters: ['CodeMirror-linenumbers', 'CodeMirror-foldgutter', 'CodeMirror-lint-markers'], // 配置折叠参数})var jsonData = JSON.stringify(result) //result是请求的后台数据var res = JSON.stringify(JSON.parse(jsonData), null, 4) //格式化后的json字符串形式this.editorText.setValue(res) //设置数据// 获取数据this.editorText.on('change', () => {console.log(this.editorText.getValue())})},methods: {}}
</script>
<style lang="scss">.CodeMirror {height: 100vh;overflow: hidden;}
</style>

4. 效果