找不到已删除的图像

Question

我在节点JS服务器上编写的函数不会删除该图像。他找不到图片。但是，当您键入图片名称时，它会从文件夹中删除它。

我收到此错误：

无法删除本地映像：错误：ENOENT：没有此类文件或目录，请取消链接“ C：\ Users \ mary \ Desktop \ Node.js-UploadFiles-RestAPIs \ uploads \ undefined”

NodeJS：文件控制器

const uploadFolder = __basedir + '/uploads/';

const fs = require('fs');

exports.deleteFile=(req, res)=> {

    let filename = req.params.filename;

    fs.unlink(uploadFolder + filename, (err) => {

        if (err) {

            console.log("failed to delete local image:"+err);

        } else {

            console.log('successfully deleted local image');                                

        }

});

}

NodeJS：文件路由器

let express = require('express');

let router = express.Router();

let fileWorker = require('../controllers/file.controller.js');

router.delete('/api/file/delete', fileWorker.deleteFile);

module.exports = router; 

Service.ts：

    delete(file : File):Observable<HttpEvent<{}>>{

      // const formdata: FormData = new FormData();

      // formdata.append('file' , file);

      const req = new HttpRequest('DELETE', 'http://localhost:8000/api/file/delete',file, {

        responseType: 'text'

      });

      return this.http.request(req);

    }

component.ts：

  x:any[];

  deleteImage(y){

  // @ts-ignore

  this.x=getFile();

    this.imageServis.delete(y).subscribe(event => {

      console.log("Here");

    });

}

Answer 1

看到错误中的未定义：'C：\ Users \ mary \ Desktop \ Node.js-UploadFiles-RestAPIs \ uploads \ undefined'文件名未在您的函数中定义：exports.deleteFile=(req, res)=> {&nbsp; &nbsp; let filename = req.params.filename;&nbsp; &nbsp; fs.unlink(uploadFolder + filename, (err) => {您使用了req.params，但似乎您在正文中发送了文件名：&nbsp;const req = new HttpRequest('DELETE', 'http://localhost:8000/api/file/delete',file, {&nbsp; &nbsp; responseType: 'text'&nbsp; });如果要使用req.params，请执行以下操作：&nbsp;const req = new HttpRequest('DELETE', 'http://localhost:8000/api/file/delete'+file,null, {&nbsp; &nbsp; responseType: 'text'&nbsp; });router.delete('/api/file/delete/:filename', fileWorker.deleteFile);