IM架构（一）、本地WS服务器

本地跑一个WebSocketServer. 跑不起来的自己去百度一下喽, npm, 不介绍喽, 百度查怎么安装。

npm install ws

创建app.js文件

"use strict";

var webSocketsServerPort = 8081; // 监听的端口
var webSocketServer = require('websocket').server; // 生成对象
var http = require('http');

var clients = [ ];

// 转换
function htmlEntities(str) {
    return String(str).replace(/&/g, '&').replace(/>/g, '>').replace(/"/g, '"');
}

// HTTP server
var server = http.createServer(function(request, response) {

});
server.listen(webSocketsServerPort, function() {
    console.log((new Date()) + " Server is listening on port " + webSocketsServerPort);
});

// WebSocket server
var wsServer = new webSocketServer({

    httpServer: server
});

wsServer.on('request', function(request) {
    console.log((new Date()) + ' Connection from origin ' + request.origin + '.');

    var connection = request.accept(null, request.origin);

    var index = clients.push(connection) - 1;
    var dataDict = false;

    console.log((new Date()) + ' Connection accepted.');

    // user sent some message
    connection.on('message', function(message) {

        if (message.type === 'utf8') { // accept only text

                dataDict = JSON.parse(htmlEntities(message.utf8Data));

                console.log((new Date()) + ' User is known as: ' + dataDict);

                var eventName = dataDict['event'];
                var eventID_GET = dataDict['eventID'];

                console.log('eventName: ' + eventName + '\n' + 'eventID: ' + eventID_GET);

                // 登录事件
                if (eventName == 'login') {

                    connection.sendUTF(JSON.stringify({
                        event:'loginsuccess',
                        eventID:eventID_GET,
                        eventTime:Date.parse(new Date()),
                        eventStatu:'1',
                        data:{
                          userID:'Dylan',
                          nickName:'WildDylan',
                          headimg:'http://img2.imgtn.bdimg.com/it/u=4093725959,796807213&fm=21&gp=0.jpg'
                        }
                    }));
                }

                // 消息事件
                if (eventName == 'message') {

                  connection.sendUTF(JSON.stringify({
                      event:'ackServerEvent',
                      eventID:eventID_GET,
                      eventTime:Date.parse(new Date()),
                      eventStatu:'1',
                      data:{

                      }
                  }));

                  // 测试回复一条消息
                  connection.sendUTF(JSON.stringify({

                    event:'message',
                    eventID:Date.parse(new Date()),
                    eventTime:Date.parse(new Date()),
                    eventStatu:'1',
                    data:{
                      userID:'Dylan_test_1',
                      messageID:Date.parse(new Date()),
                      messageComm:'qingke',
                      conversionID:'currentConversionID',
                      messageDate:Date.parse(new Date()),
                      messageContent:{
                        extra:'Message Extra',
                        pushMessage:'New Message Coming...',
                        content:Date.parse(new Date()) + '_msg',
                      },
                      messageType:'0',
                      sentStatu:'40',
                      messageDirection:'1'
                    }
                  }));

                  console.log('re message!');
                }
        }
    });

    connection.on('close', function(connection){

      console.log((new Date()) + " Peer "
                + connection.remoteAddress + " disconnected.");
    });

});

然后 node app.js, 本地的ws服务就会run起来

@WildDylan 2015.11.4