如何处理上传的zip包

如果前端上传的文件是zip，后端要如何解压处理呢？
以nestjs为例。首先是接收文件。
Body是无法接收到file的，我们需要借助UseInterceptors修饰器，并使用UploadedFile接收数据。
然后是解压缩，我们需要借助compressing这个包。
注意，如果压缩包里的文件名带中文，需要增加这个选项，否则会出现乱码。

compressing.zip.uncompress(path, fllepath, { zipFileNameEncoding: 'GBK' })

import { Controller, Post, UseInterceptors, UploadedFile } from '@nestjs/common';
import { FileInterceptor } from '@nestjs/platform-express';
import { handlecatalogue, handleContent, fsWrite } from './transform';
let path = require('path');
let fs = require('fs');
const compressing = require('compressing');

@Controller('wordtohtml')
export class WordtohtmlController {
    @Post('upload')
    @UseInterceptors(FileInterceptor('file'))
    async uploadFile(@UploadedFile() file): Promise<any> {
        let basepath = path.resolve(`public/handbook/`);
        let filepath = path.resolve(`public/handbook/pages/`);
        let filename = file.originalname.replace(/\.zip$/, '');

        let res = await fsWrite(filepath + '/' + `${file.originalname}`, file.buffer);
        if (res === 'ok') {
            let result = await this.unzip(filepath + '/' + `${file.originalname}`, filepath);
            if (result === 'ok') {
                //解压成功后，生成文件
                handlecatalogue(filepath + '/' + filename + '.htm', basepath + '/' + 'index.html');
                handleContent(filepath + '/' + filename + '.htm', filepath + '/' + 'book.html');
            }



            return { Success: true, Message: '处理成功' }
        } else {
            return { Success: false, Message: '处理失败' }
        }

    }
    //解压缩
    unzip(path, fllepath) {
        return new Promise((resolve, reject) => {
            compressing.zip.uncompress(path, fllepath, { zipFileNameEncoding: 'GBK' })
                .then(() => {
                    resolve('ok');
                })
                .catch(err => {
                    reject(err);
                });
        });

    }

    //删除目录
    delDir(path) {
        let files = [];
        if (fs.existsSync(path)) {
            files = fs.readdirSync(path);
            files.forEach((file, index) => {
                let curPath = path + "/" + file;
                if (fs.statSync(curPath).isDirectory()) {
                    this.delDir(curPath); //递归删除文件夹
                } else {
                    fs.unlinkSync(curPath); //删除文件
                }
            });
            // fs.rmdirSync(path);
        }
    }

}