mysql - express js - 使用 sequelize 时找不到 GET 请求 404

Question

我在服务器开发中使用 Sequelize 和 express.js。
当我尝试发送路由 /files 的 GET 请求时，显示错误:

{
    "errors": {
        "message": "Not Found",
        "error": {
            "status": 404
        }
    }
}

文件夹结构

src
  -models
    -File.js
  -routes
    -api
      -index.js
      -files.js
  -index.js
  -app.js
  -sequelize.js
package.json

我正在尝试从表 files 中获取所有记录
/src/routes/api/files.js

const router = require('express').Router();
const Files = require('../../models/File')

router.get('/files', (req,res) => 
    Files.findAll()
    .then(data => {
        res.sendStatus(200)
    })
    .catch(err => console.log(err))
);

module.exports = router;

/src/routes/index.js

var router = require('express').Router();

router.use('/api', require('./api'));

module.exports = router;

/src/models/File.js

const Sequelize = require('sequelize');
const DataTypes = Sequelize.DataTypes;
const db = require('../sequelize')

let files = db.define('files', {
    id: {
      type: DataTypes.UUID,
      defaultValue: DataTypes.UUIDV4,
      allowNull: false,
      primaryKey: true
    },
    fileName: {
      type: DataTypes.STRING
    },
  });
  
module.exports = files;

源代码/sequelize.js

const { Sequelize } = require('sequelize');

const sequelize = new Sequelize('myDb', 'admin', '1234', {
  dialect: 'mysql',
  logging: false
});

sequelize.sync({alter: true})

module.exports = sequelize;

源代码/应用程序.js

var http = require('http'),
    path = require('path'),
    methods = require('methods'),
    express = require('express'),
    bodyParser = require('body-parser'),
    session = require('express-session'),
    cors = require('cors'),
    passport = require('passport'),
    errorhandler = require('errorhandler'),
    mongoose = require('mongoose');

const sequelize = require('./sequelize')

sequelize.authenticate()
.then(() => {console.log("connected")}) //printed "connected"
.catch((err) => {console.log(err)})


var isProduction = process.env.NODE_ENV === 'production';

var app = express();

app.use(cors());

app.use(require('morgan')('dev'));
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());

app.use(require('method-override')());
app.use(express.static(__dirname + '/public'));

app.use(session({ secret: 'conduit', cookie: { maxAge: 60000 }, resave: false, saveUninitialized: false  }));

if (!isProduction) {
  app.use(errorhandler());
}

if(isProduction){
  mongoose.connect(process.env.MONGODB_URI);
} else {
  mongoose.connect('mongodb://localhost/conduit');
  mongoose.set('debug', true);
}

require('./models/File');
app.use(require('./routes'));

/// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

if (!isProduction) {
  app.use(function(err, req, res, next) {
    console.log(err.stack);

    res.status(err.status || 500);

    res.json({'errors': {
      message: err.message,
      error: err
    }});
  });
}

app.use(function(err, req, res, next) {
  res.status(err.status || 500);
  res.json({'errors': {
    message: err.message,
    error: {}
  }});
});

var server = app.listen( process.env.PORT || 3000, function(){
  console.log('Listening on port ' + server.address().port);
});

更新 1
src/routes/api/index.js

var router = require('express').Router();

router.use('/', require('./users'));
router.use('/files', require('./files'));

router.use(function(err, req, res, next){
  if(err.name === 'ValidationError'){
    return res.status(422).json({
      errors: Object.keys(err.errors).reduce(function(errors, key){
        errors[key] = err.errors[key].message;

        return errors;
      }, {})
    });
  }

  return next(err);
});

module.exports = router;

Answer 1

编辑
在您的 /api/index.js 文件中，您有:

router.use('/files', require('./files'));

所以 URL 应该是: http://localhost:3000/api/files/files如果要将 URL 更改为: http://localhost:3000/api/files ，则在 files.js 中，应更改为:

router.get('/', (req,res) => // change "/files" to just "/" 
    Files.findAll()
    .then(data => {
        res.sendStatus(200)
    })
    .catch(err => console.log(err))
);