How to implement a rich text editor in uniapp

In many applications, we often encounter situations where users need to input rich text content, such as editing articles, publishing updates, etc. To meet this requirement, we can use a rich text editor. In uniapp, we can use some open source rich text editor components, such as wangeditor, quill, etc.

Below, I will take wangeditor as an example to introduce how to implement a rich text editor in uniapp.

1. Download wangeditor component

First, we need to download the latest version of wangeditor component from the official website of wangeditor (https://www.wangeditor.com/). After the download is completed, unzip it to get a wangeditor folder.

2. Introduce the wangeditor component into the uniapp project

Copy the wangeditor folder to the static directory of the uniapp project (if there is no static directory, you can create a new one). Then, in the page that needs to use the rich text editor, introduce the js and css files of the wangeditor component.

<template>
  <view>
    <editor id="myEditor"></editor>
  </view>
</template>

<script>
  export default {
    onReady() {
      // 導入 wangeditor 組件
      import '../../static/wangeditor/css/wangEditor.css';
      import '../../static/wangeditor/js/wangEditor.js';
      
      // 創(chuàng)建富文本編輯器
      const editor = new window.wangEditor('#myEditor');
      
      // 配置富文本編輯器
      editor.config.uploadImgServer = '/upload'; // 上傳圖片的服務(wù)器端接口地址

      // 監(jiān)聽富文本內(nèi)容變化事件
      editor.config.onchange = (html) => {
        // 將富文本內(nèi)容保存到 data 中
        this.content = html;
      };
      
      // 創(chuàng)建富文本編輯器
      editor.create();
    },
    data() {
      return {
        content: '',
      };
    },
  };
</script>

In the above code, we first introduced the js and css files of the wangeditor component through the <script> tag. Then, in the onReady() method, we created a rich text editor instance and set the interface address and content change event for uploading images. Finally, the rich text editor is created through the editor.create() method.

In the above code, we save the rich text content to this.content, you can adjust it according to actual needs.

3. Interface for processing uploaded images

In the above code, we set the interface address for uploading images to /upload, which needs to be installed on the background server handle this interface. You can use any backend language (such as Node.js, Java, PHP, etc.) to implement this interface.

The following takes Node.js as an example to give a simple interface implementation code for uploading images:

// 導入依賴庫
const express = require('express');
const multer = require('multer');

// 創(chuàng)建 Express 應用
const app = express();

// 創(chuàng)建 multer 中間件，用于處理上傳的文件
const upload = multer({ dest: 'uploads/' });

// 處理上傳圖片的接口
app.post('/upload', upload.single('image'), (req, res) => {
  const file = req.file;
  if (!file) {
    res.status(400).json({ error: '請選擇上傳的圖片' });
  } else {
    res.json({ url: `uploads/${file.filename}` });
  }
});

// 啟動服務(wù)器
app.listen(3000, () => {
  console.log('Server is running at http://localhost:3000');
});

In the above code, we use express and multer libraries to process uploaded images. interface. When uploading a picture, the server saves the picture to the uploads/ directory and returns the access address of the picture.

Through the above three steps, we have completed the process of implementing a rich text editor in uniapp. You can expand it according to actual needs, such as adding more configuration options, processing expressions, inserting videos, etc.

I hope this article can help you, and I wish you can write a powerful rich text editor!

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