Post 在节点 js express 中不工作

Question

当我尝试在应用程序中传递 post 请求时，它不起作用。当我尝试使用 postman 获取 post 数据时，数据没有传递，我得到以下值作为输出。

"_id": "615f2fe2fc52303bdb758e93", "saltSecret": "a$AmJCbqiunWY2S8kVBbx.a.", "__v": 0

这些是我的代码。

app.js

require("./config/config");
require("./models/db");

const express = require("express");
const bodyParse = require("body-parser");
const cors = require("cors");

const rtsIndex = require("./route/index.router");

var app = express();

app.use(bodyParse.json());
app.use(cors());
app.use("/api", rtsIndex);

app.listen(process.env.PORT, () =>
    console.log(`Server started at port : ${process.env.PORT}`)
);

studentModel.js

const mongoose = require("mongoose");
const bcrypt = require("bcryptjs");

var studentScheme = new mongoose.Schema({
    fullname: {
        type: String,
    },
    email: {
        type: String,
    },
    password: {
        type: String,
    },
    saltSecret: String,
});

studentScheme.pre("save", function (next) {
    bcrypt.genSalt(10, (err, salt) => {
        bcrypt.hash(this.password, salt, (err, hash) => {
            this.password = hash;
            this.saltSecret = salt;
            next();
        });
    });
});

mongoose.model("Student", studentScheme);

studentController.js

const mongoose = require("mongoose");    
const Student = mongoose.model("Student");

module.exports.resgiter = (req, res, next) => {
    var student = new Student();
    student.fullname = req.body.fullname;
    student.email = req.body.email;
    student.password = req.body.password;
    student.save((err, doc) => {
        if (!err) res.send(doc);
    });
};

router.js

const express = require("express");
const router = express.Router();    
const ctrlStudent = require("../controller/student.controller");

router.post("/register", ctrlStudent.resgiter);

module.exports = router;

请有人帮助我；我不明白我的代码有什么问题

Answer 1

大多数情况下，只要有一个承诺（不是 nodejs 中的确切承诺，只是我在这里使用的一个术语），它总是首选使用 async - await returns。

所以通过使用 async - await ，我不知道你的数据是如何存储在你的数据库中的；但您可以尝试下面的代码并检查它是否有效：

const mongoose = require("mongoose");
const Student = mongoose.model("Student");

module.exports.resgiter = async (req, res, next) => {
    var student = new Student({
        fullname: req.body.fullname,
        email: req.body.email,
        password: req.body.password,
    });

    await student.save((err, doc) => {
        if (!err) {
            console.log("Saving the document...")
            res.send(doc);
        }
    });
};

async - await

可以参考下面的链接

https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Asynchronous/Async_await

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/async_function

https://hackernoon.com/6-reasons-why-javascripts-async-await-blows-promises-away-tutorial-c7ec10518dd9

https://nodejs.dev/learn/modern-asynchronous-javascript-with-async-and-await

Post 在节点 js express 中不工作

Post is not working in the node js express

mongodb

express

mongoose

nosql

mean