将 Socket.io 与 React Native 一起使用但不起作用 [英] Using Socket.io with React Native and not working

问题描述

我正在尝试完成作业，我需要为此使用 websocket.我使用 react native 作为客户端，使用 node.js 作为服务器.但是，即使我尝试了网络上的所有解决方案建议，也无法使其正常工作.

I'm trying to complete a homework and I need to have websocket for it. I use react native as client and node.js for server. However, even I tried all the solution suggestions on web, I couldn't get it working.

客户

import React from 'react';
import { StyleSheet, Text, View } from 'react-native';
import SocketIO from 'socket.io-client';

const connectionConfig = {
  jsonp: false,
  reconnection: true,
  reconnectionDelay: 100,
  reconnectionAttempts: 100000,
  transports: ['websocket'], // you need to explicitly tell it to use websockets
 };

export default class App extends React.Component {

   constructor() {
    super();
    this.socket = SocketIO('http://localhost:3000',connectionConfig);
    this.socket.on('connect', () => {
         console.log('connected to server');
    });
 }

服务器

const express = require('express');
const http = require('http');
const socketIO = require('socket.io');

const port = 3000;
var app = express();
var server = http.createServer(app);
var io = socketIO(server);

server.listen(port, () => {
    console.log(port, 'is up');
});

io.on('connection', (socket) => {
    console.log('new user connected');

    socket.on('disconnect', () => {
        console.log('User was disconnected');
    });
});

这是我使用的版本，

socket.io: 2.1.1

socket.io: 2.1.1

快递:4.16.4

socket.io 客户端:2.1.1

socket.io-client: 2.1.1

博览会:30.0.1

我想提前感谢您所做的一切努力.

I want to thank you in advance for all your effort.

推荐答案

我找到了问题的解决方案.

I have found the solution to my problem.

this.socket = SocketIO('http://localhost:3000',connectionConfig);

this.socket = SocketIO('http://localhost:3000',connectionConfig);

我在函数调用中省略了 connectionConfig 并更改了我将本地主机写入的方式.

I've omitted the connectionConfig from the function call and change the way I write the local host to that.

this.socket = SocketIOClient('http://192.168.xxxx:3000');

this.socket = SocketIOClient('http://192.168.xxxx:3000');

它现在适用于安卓和 iOS.

It now works both on android and iOS.

这篇关于将 Socket.io 与 React Native 一起使用但不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！