将数据传递给服务器显示未定义

Posted 2023-02-22

【中文标题】将数据传递给服务器显示未定义

【英文标题】：Passing data to server showing undefined

【发布时间】：2020-10-16 19:36:03

【问题描述】：

我是 React JS 和 Flux 的新手，我想将我的数据从我的 React 表单传递到我的服务器，在服务器中我有一个发送电子邮件的代码，我使用的是 Flux 架构。当我运行我的代码时，它可以正常工作，只有数据未定义。谁能帮我？这是我的代码

这是我的 Store.js

import EventEmitter from 'events';

import Dispatcher from '../dispatcher/Dispatcher';

import MessageConstants from '../constants/MessageConstants';


class MessageStore extends EventEmitter
    constructor() 
        super()
        this.supportTicket = [
            
                fullName: '',
                site: '',
                email: '',
                subject: '',
                description: '',
                type: ''
            
        ];
    
    sendMessage(fullName, site, email, subject, description, type)
        this.supportTicket.push(
            fullName,
            site,
            email,
            subject,
            description,
            type
        );
        this.emit("change");
    


const MessageStore = new MessageStore;
Dispatcher.register(function(action) 
    switch (action.actionType) 
        case MessageConstants.PERFORM_SEND_MESSAGE:
            this.sendMessage(action.fullName, action.site, action.email, action.subject, action.description)
            break;
            default:
                // no op
    
);
export default MessageStore;

这是 action.js

import _ from 'lodash';
import jQuery from 'jquery';

import Dispatcher from '../dispatcher/Dispatcher';
import MessageConstants from '../constants/MessageConstants';


function sendMessage(fullName, site, email, subject, description, type, callback) 
  jQuery.ajax(
    method: 'POST',
    url: '/api/v1/supportTicket',
    contentType: 'aplication/json',
    data: JSON.stringify(
      fullName: fullName,
      site: site,
      email: email,
      subject: subject,
      description: description,
      type
    )
  )
  .done(function(sendMessage) 
    callback(null, sendMessage);
  )
  .fail(function(err)
    console.error('Failed to send message', JSON.stringify(err));
    callback(err);
  );

const MessageActions = 
  sendMessage: function(fullName, site, email, subject, description, callback) 
    sendMessage(fullName, site, email, subject, description, function(err, fullName, site, email, subject, description, type) 
      if(err)  return callback(err); 
      Dispatcher.dispatch(
        actionType: MessageConstants.PERFORM_SEND_MESSAGE,
        fullName: fullName,
        site: site,
        email: email,
        subject: subject,
        description: description,
        type: type
      );
      callback(null, fullName)
    );
  
;

module.exports = MessageActions;

这是我处理提交数据的方法

handleSubmit(evt) 
        evt.preventDefault();
        
        this.handleProfileChange();
        // this.handleSubjectChange(evt);
        // this.handleMessageChange(evt);
        // var messageInfo = 
        //     subject: this.state.subject,
        //     description: this.state.description
        // ;
        
        console.log(this.state.fullName);
        console.log(this.state.site);
        console.log(this.state.email);
        console.log(this.state.subject);
        console.log(this.state.description);
        this.setState( submitting: true , () => 
            MessageActions.sendMessage(this.state.fullName, this.state.site, this.state.email, this.state.subject, this.state.description, (err) => 
                if(err) 
                    this.setState(
                        submitting: false,
                        errorMessage: errorText(err)
                    );
                
            );
        );
    

这是给我的后端

const express = require('express');
const router = express.Router();
const email = require('nodemailer');

const routing = requirerp('/lib/routing');
const Err = requirerp('/utils/restErrors');

//let account = await email.createTestAccount();
let transporter = email.createTransport(
    service: "Gmail",
    host: "smtp.gmail.com",
    auth: 
        user: '[e-mail]',
        pass: 'xxxxx'
    
        
);


router.post('/', routing.requireAuth, function(req, res, next) 
    var fullName = req.body.fullName
    var site = req.body.site
    var email = req.body.email
    var subject = req.body.subject
    var description = req.body.description
    var type = req.body.type
    var content = 'Nama : ' + fullName + '\nLokasi : ' + site + '\nPesan : ' + description

    let mailOptions = 
        from: fullName + '<' + email + '>',
        to: '[e-mail]',
        subject: 'Request :' + subject,
        text: content
    
    transporter.sendMail(mailOptions, function(err, info)
        if(Err.invalidInput(next, err)) 
            return;
            console.log('Error' + info);
        
        else 
            res.json(
                status: 'success'
            )
            console.log('Email has been sent' + info.response);
        
    )
)
    

module.exports = router;

【参考方案1】：

在后端尝试这样的事情：

const myObj = req.body.data
var fullName = myObj.fullName
var site = myObj.site
...

【讨论】：

它没有做任何改变，数据仍然显示未定义。在我尝试再次运行我的代码之前我应该​​重新启动服务器吗？

好的，我已经更改了代码，并重新启动了服务器，但它仍然未定义，并且出现更多错误，有什么建议吗？