javascript - Body-parser 不适用于 typescript ，当我发送请求时，我在 request.body 中得到一个未定义的

Question

这是我使用 typescript 3.7.4 的 express 应用程序的以下代码:

import bodyParser from "body-parser";
import config from "config";
import cookieParser from "cookie-parser";
import express from "express";
import mongoose from "mongoose";
import path from "path";

export default class App {

    public app: express.Application;

    constructor() {
        this.app = express();
        this.initializeMiddlewares();
    }

    public listen(port: any) {
        this.app.listen(port, () => {
            console.log(`App listening on the port ${port}`);
        });
    }

    public initializeControllers(controllers: any) {
        controllers.forEach((controller: any) => {
            this.app
                .use(bodyParser.json())
                .use(bodyParser.urlencoded())
                .use("/", controller.router);
        });
    }

}`

请帮我处理这部分代码。我不明白，为什么我在发送发布请求时在 request.body 中变得未定义。

Answer 1

如果您运行的是 express 4.16 或更高版本，则不再需要使用 body-parser。

您可以尝试这样做:

import config from "config";
import cookieParser from "cookie-parser";
import express from "express";
import mongoose from "mongoose";
import path from "path";

export default class App {
    
    public app: express.Application;

    constructor() {
        this.app = express();
        this.initializeMiddlewares();
    }

    public listen(port: any) {
        this.app.listen(port, () => {
            console.log(`App listening on the port ${port}`);
        });
    }

    public initializeControllers(controllers: any) {
        controllers.forEach((controller: any) => {
            this.app.use(express.json());
            this.app.use(express.urlencoded());
            this.app.use("/", controller.router);
        });
    }

}`

查看此处了解更多信息:https://medium.com/@mmajdanski/express-body-parser-and-why-may-not-need-it-335803cd048c