Javascript 找不到404 NotFoundError:找不到节点JS和Express

我试图访问我的routes/api和/api/Superhero，但是当我这样做时，我得到了这个错误

Not Found
404
NotFoundError: Not Found
    at C:\Users\mikae\Desktop\Project\node-express-swig-mongo\app.js:27:8
    at Layer.handle [as handle_request] (C:\Users\mikae\Desktop\Project\node-express-swig-mongo\node_modules\express\lib\router\layer.js:95:5)
    at trim_prefix (C:\Users\mikae\Desktop\Project\node-express-swig-mongo\node_modules\express\lib\router\index.js:317:13)
    at C:\Users\mikae\Desktop\Project\node-express-swig-mongo\node_modules\express\lib\router\index.js:284:7
    at Function.process_params (C:\Users\mikae\Desktop\Project\node-express-swig-mongo\node_modules\express\lib\router\index.js:335:12)
    at next (C:\Users\mikae\Desktop\Project\node-express-swig-mongo\node_modules\express\lib\router\index.js:275:10)
    at C:\Users\mikae\Desktop\Project\node-express-swig-mongo\node_modules\express\lib\router\index.js:635:15
    at next (C:\Users\mikae\Desktop\Project\node-express-swig-mongo\node_modules\express\lib\router\index.js:260:14)
    at Function.handle (C:\Users\mikae\Desktop\Project\node-express-swig-mongo\node_modules\express\lib\router\index.js:174:3)
    at router (C:\Users\mikae\Desktop\Project\node-express-swig-mongo\node_modules\express\lib\router\index.js:47:12)

app.js

var api = require('./routes/api.js');
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'pug');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', indexRouter);
app.use('/users', usersRouter);
app.use('/api', api);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;

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


router.get('/superheros', function(req, res) {
  res.send('Just a test');
});

module.exports = router;

api.js

var api = require('./routes/api.js');
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'pug');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', indexRouter);
app.use('/users', usersRouter);
app.use('/api', api);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;

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


router.get('/superheros', function(req, res) {
  res.send('Just a test');
});

module.exports = router;

---

我正在遵循一个教程，我已经从头看到了，但我没有找到解决方案。我只想访问我创建的路线以继续本课程。有人能帮我吗？我该怎么办？

你有一个打字错误：它在

api.js

中写着

/superheros

（英雄，不是英雄）。另外，在

/api

下，您正在挂载一个路由器实例，该实例只定义了一条路由：

/superheros

。您传递到的路由器中没有

/

路由：

app.use（'/api'，api）；

因此，

/api

+

/

没有处理程序