javascript - Express .post 路由方法未定义

Question

我是 Nodejs 和 Express 的新手，我似乎无法想象为什么这个方法在 Webstorm 中没有得到解决。 .get 方法返回正常，使用 .all 方法测试它也正常。我不知道为什么 .post 方法未解析， Node 启动正常，但如果我尝试通过 Postman 向它发送 post 请求，它只会给出错误:

the Postman error

app.js

'use strict';

var express = require("express");
var bodyParser = require("body-parser");
var app = express();
var routes = require("./routes");

app.use(function (req, res, next) {
    console.log(`${req.method} ${req.originalUrl}`);
    next();
});

app.use(bodyParser.json());

app.use("/questions", routes);
// routes(app);

var port = process.env.PORT || 3000;

app.listen(port, function () {
    console.log("Express is running at", port);
});

routes.js

'use strict';

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

// GET /questions
// Route for getting all questions
router.get("/", function (req, res) {
    res.json({
        response: "You sent me an awesome GET request, thank you!"
    });
});

// POST /questions
// Route for creating a question
router.post("/questions", function (req, res) {
    res.json({
        response: "You sent me an awesome POST request, thank you!"
    });
    body: req.body;
});

module.exports = router;

package.json

{
  "name": "02-express-api",
  "version": "1.0.0",
  "description": "",
  "main": "app.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "body-parser": "^1.15.2",
    "express": "^4.13.4"
  }
}

Answer 1

router.post("/questions", 应该是 router.post("/", 才能正常工作；现在，该处理程序正在响应 URI /questions/questions，因为路由器本身已附加到 /questions 下的句柄 URI。