Websocket客户端?

时间:2018-12-06 12:45:42

标签: java android websocket okhttp3

我使用ws库创建了nodejs WebSocket服务器。

我想向Android添加一个模块以便与管理员聊天。

socket.js

const Messages = require('../models/index').Messages;

module.exports = (httpsServer) => {
    const WebSocketServer = require('ws').Server;
    const wss = new WebSocketServer({
        server: httpsServer
    });

    wss.on('connection', function connection(ws) {
        console.log('connected');
        ws.on('message', function incoming(message) {
            console.log('received: %s', message);
            let jsonObject = JSON.parse(message);

            switch (jsonObject.class) {
                case "userIdFromUser":
                    Messages.findAll({
                        attributes: ['message', 'roomId', 'senderId', 'createdAt'],
                        where: {
                            roomId: jsonObject.data.senderId
                        },
                        order: [
                            ['createdAt', 'ASC']
                        ]
                    }).then(message => {
                        let response = {
                            "class": "getAllMessages",
                            "data": message
                        };
                        wss.clients.forEach(function each(client) {
                            if (client != ws) {
                                console.log('client opened');
                                client.send(JSON.stringify(response));
                            }
                        });
                    });
                    break;
                case "messageToAdmin":
                    Messages.create({
                        roomId: jsonObject.data.senderId,
                        senderId: jsonObject.data.senderId,
                        message: jsonObject.data.message
                    }).then(message => {
                        let response = {
                            "class": "messageToUser",
                            "data": message
                        };
                        wss.clients.forEach(function each(client) {
                            if (client != ws) {
                                console.log('client opened');
                                client.send(JSON.stringify(response)); 
                            }
                        });
                    });
                    break;
                case "messageToUser":
                    Messages.create({
                        roomId: jsonObject.data.senderId,
                        senderId: "1", //administrator
                        message: jsonObject.data.message
                    }).then(message => {
                        let response = {
                            "class": "messageToAdmin",
                            "data": message
                        };
                        wss.clients.forEach(function each(client) {
                            if (client != ws) {
                                console.log('client opened');
                                client.send(JSON.stringify(response));
                            }
                        });
                    });
                    break;

                default:
                    break;
            }
        });
    });
};

对于android,我使用okhttp,nkzawa / socket.io-client,nv-websocket-client,TooTallNate / Java-WebSocket库来连接websocket服务器。

所有库都可以使用,但仅适用于单个用户。当我从第二台设备连接时,未收到消息。当用户向管理员发送消息时,onMessage事件不会运行。

从上述库中,okhttp更好地用于连接和重新连接。我试图为okhttp添加forceNewConnection(true),但没有找到一个很好的例子。

我该如何解决问题。感谢您的建议...

0 个答案:

没有答案