Question

我一直在使用Mean堆栈构建一个简单的博客应用程序，我似乎很挣扎，即使我在此处发送数据，但request.body始终为空，并且请求始终在Chrome网络标签中处于待处理状态，直到给出Err_connction_refused或类似的东西，请注意我将表单数据传递给问题所在的服务

注册服务

import { Injectable } from '@angular/core';
import {Http, Headers} from '@angular/http';
import { map } from 'rxjs/operators';

@Injectable({
  providedIn: 'root'
})
export class RegisterService {

  constructor(private http: Http) { }
// A form data is passed as an argument to this function
      register(user) {
        let headers = new Headers();
        headers.append("Content-Type", "multipart/form-data")
        return this.http.post("http://localhost:3000/api/users/register", user, {headers})
        .pipe(map(res => res.json()))
    }
}

服务器端的路由（旁注：不必担心req.file.path）

// Registering a user
router.post("/register", upload.single("profileImage") , (req, res) => {
    let newUser = new User({
        username: req.body.username,
        password: req.body.password,
        email: req.body.email,
        name: req.body.name,
        bio: req.body.bio,
        interests: req.body.interests,
        profileImage: req.body.path
    })
    User.addUser(newUser, (err) => {
        if (err) return err;
        res.send({
            success: "true",
            msg: "You've logged in sucessfully"
        })
    })
})

Answer 1

第一步ID

安装模块后，将以下代码添加到您的app.js

npm i body-parser

修改

使用的URL为 var bodyParser = require("body-parser"); app.use(bodyParser.urlencoded()) app.use(bodyParser.urlencoded({ extended: true }));

但是您的路线只有http://localhost:3000/api/users/register。

您的路线和传递的URL应该匹配

为什么request.body为空？

1 个答案: