NodeJS Express-需要jpg时出现“语法：无效或意外的令牌”

如何解决NodeJS Express-需要jpg时出现“语法：无效或意外的令牌”

我遇到了一个问题，我尝试要求提供一个.jpg图像。 在谷歌搜索时，我以为它与Jest有关，但是现在当我从一个干净的项目开始时，没有将Jest作为依赖项，我会遇到相同的错误。

可能是什么问题？

这是我要运行的文件

server.js

// Import express framework
const express = require('express')
// Import routes
const visionAiRouter = require('./routes/vision-ai-route')
// Setup default port
const PORT = process.env.PORT || 4000
// Create express app
const app = express()
// Vision AI Route
app.use('/ai',visionAiRouter)

// Implement route for errors
app.use((err,req,res,next) => {
 console.error(err.stack)
 res.status(500).send('Something broke!')
})
// Start express app
app.listen(PORT,function() {
console.log(`Server is running on: ${PORT}`)
})

vision-ai-route.js

// Import
const express = require('express')
const visionAi = require('../controllers/vision-ai-controller')
// Create express router
const router = express.Router()
router.get('/',visionAi.labelDetection)
// Export
module.exports = router

vision-ai-controller.js

// Assets
const cat = require('./../data/cat.jpg')
// Create controller for GET request to '/users/all'
exports.labelDetection = async (req,res) => {
      // Imports the Google Cloud client library
      const vision = require('@google-cloud/vision');
  
      // Creates a client
      const client = new vision.ImageAnnotatorClient();
    
      // Performs label detection on the image file
      const [result] = await client.labelDetection(cat);
      const labels = result.labelAnnotations;
      const stringify = JSON.stringify(labels);
      await res.json(stringify)
}

package.json

{
  "name": "test","version": "1.0.0","description": "","main": "server.js","dependencies": {
    "@google-cloud/vision": "^2.1.1","express": "^4.17.1","nodemon": "^2.0.4"
  },"devDependencies": {},"scripts": {
    "start": "nodemon server.js"
  },"author": "","license": "ISC"
}

Stacktrace

/Users/kod/Desktop/Code/Private/vision-ai/test/data/cat.jpg:1
����
^    
SyntaxError: Invalid or unexpected token
       at Module._compile (internal/modules/cjs/loader.js:721:23)
        at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
        at Module.load (internal/modules/cjs/loader.js:653:32)
        at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
        at Function.Module._load (internal/modules/cjs/loader.js:585:3)
        at Module.require (internal/modules/cjs/loader.js:690:17)
        at require (internal/modules/cjs/helpers.js:25:18)
        at Object.<anonymous> (/Users/kod/Desktop/Code/Private/vision-ai/test/controllers/vision-ai-controller.js:3:13)
        at Module._compile (internal/modules/cjs/loader.js:776:30)
        at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)

解决方法

您不需要非代码文件，因为require是用来加载可执行代码的。正确的等效项是const cat = fs.readFileSync('./test/data/cat.jpg')。