Question

我正在使用websockets开发一个项目，因为我想在我的项目中实现聊天。我遵循了该站点上的指南：https://www.callicoder.com/spring-boot-websocket-chat-example/，客户端与服务器之间的通信是这样的：

  var socket = new SockJS('/ws');
  stompClient = Stomp.over(socket);

  stompClient.connect({}, onConnected, onError);

在此处查看完整的实现：

'use strict';

var usernamePage = document.querySelector('#username-page');
var chatPage = document.querySelector('#chat-page');
var usernameForm = document.querySelector('#usernameForm');
var messageForm = document.querySelector('#messageForm');
var messageInput = document.querySelector('#message');
var messageArea = document.querySelector('#messageArea');
var connectingElement = document.querySelector('.connecting');

var stompClient = null;
var username = null;

var colors = [
    '#2196F3', '#32c787', '#00BCD4', '#ff5652',
    '#ffc107', '#ff85af', '#FF9800', '#39bbb0'
];

function connect(event) {
    username = document.querySelector('#name').value.trim();

    if(username) {
        usernamePage.classList.add('hidden');
        chatPage.classList.remove('hidden');

        var socket = new SockJS('/ws');
        stompClient = Stomp.over(socket);

        stompClient.connect({}, onConnected, onError);
    }
    event.preventDefault();
}


function onConnected() {
    // Subscribe to the Public Topic
    stompClient.subscribe('/topic/public', onMessageReceived);

    // Tell your username to the server
    stompClient.send("/app/chat.addUser",
        {},
        JSON.stringify({sender: username, type: 'JOIN'})
    )

    connectingElement.classList.add('hidden');
}


function onError(error) {
    connectingElement.textContent = 'Could not connect to WebSocket server. Please refresh this page to try again!';
    connectingElement.style.color = 'red';
}


function sendMessage(event) {
    var messageContent = messageInput.value.trim();
    if(messageContent && stompClient) {
        var chatMessage = {
            sender: username,
            content: messageInput.value,
            type: 'CHAT'
        };
        stompClient.send("/app/chat.sendMessage", {}, JSON.stringify(chatMessage));
        messageInput.value = '';
    }
    event.preventDefault();
}


function onMessageReceived(payload) {
      ....
}

和html网站：

<html>
  <head>
      <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0">
      <title>Spring Boot WebSocket Chat Application</title>
      <link rel="stylesheet" href="/css/main.css" />
  </head>
  <body>
    <noscript>
      <h2>Sorry! Your browser doesn't support Javascript</h2>
    </noscript>

    <div id="username-page">
        <div class="username-page-container">
            <h1 class="title">Type your username</h1>
            <form id="usernameForm" name="usernameForm">
                <div class="form-group">
                    <input type="text" id="name" placeholder="Username" autocomplete="off" class="form-control" />
                </div>
                <div class="form-group">
                    <button type="submit" class="accent username-submit">Start Chatting</button>
                </div>
            </form>
        </div>
    </div>

    <div id="chat-page" class="hidden">
        <div class="chat-container">
            <div class="chat-header">
                <h2>Spring WebSocket Chat Demo</h2>
            </div>
            <div class="connecting">
                Connecting...
            </div>
            <ul id="messageArea">

            </ul>
            <form id="messageForm" name="messageForm">
                <div class="form-group">
                    <div class="input-group clearfix">
                        <input type="text" id="message" placeholder="Type a message..." autocomplete="off" class="form-control"/>
                        <button type="submit" class="primary">Send</button>
                    </div>
                </div>
            </form>
        </div>
    </div>

    <script src="https://cdnjs.cloudflare.com/ajax/libs/sockjs-client/1.1.4/sockjs.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/stomp.js/2.3.3/stomp.min.js"></script>
    <script src="/js/main.js"></script>
  </body>
</html>

我现在正在寻找在Typescript和Webpack中实现此功能的可能性，因此我尝试使用sockjs-client和stompjs：

npm i sockjs-client --save
npm i stompjs --save

import * as SockJS from 'sockjs-client';
import * as Stomp from 'stompjs';

（并添加了翻译员想要的类型）

此实现无效（甚至不能使用新的SockJs（'http://localhost:8080/ws'））（我还使用

禁用了服务器站点上的cors问题。

    public void registerStompEndpoints(StompEndpointRegistry registry) {
        registry.addEndpoint("/ws").setAllowedOrigins("*").withSockJS();
    }

我什至不知道如何连接这两个库。你们谁知道如何正确实施它，或者我可以使用哪些库来连接到我的Websocket聊天服务器？

您能在这里帮助我吗？谢谢！

带有打字稿和webpack的Websocket客户端；春季服务器

0 个答案: