websocket 服务搭建

链接过程

前端

1、CREATED WEBSOCKE

2、ONOPEN

3、ONMESSAGE

服务端

1、收到request

2、给客户端发送消息,生成id

//msg
{
    type: "id",
    id: Date.now() } 

前端

1、收到messge,type为id,

2、给服务端发送消息type=username的消息,携带id

// clientID = msg.id
  var msg = {
    name: document.getElementById("name").value, date: Date.now(), id: clientID, type: "username" }; 

服务端

1、收到type为username的msg

2、设置connect.username = msg.name;

3、广播给其他用户消息 type: "userlist",

var userListMsg = {
    type: "userlist",
    users: []
  };

4、服务端发送usename消息

if (sendToClients) {
  var msgString = JSON.stringify(msg);
  var i;

  for (i=0; iconsole.log(102, msgString); connectionArray[i].sendUTF(msgString); } } 

前端

1、 前端收到type=userlist的message,渲染用户列表 2、 前端收到type=username的message,渲染聊天室的登录消息

User lili signed in at 上午10:03:24
User hanmei signed in at 上午10:03:24

/**
 * @Description: In User Settings Edit
 * @Author: your name
 * @Date: 2019-09-02 16:17:14
 * @LastEditTime: 2019-09-04 10:16:54
 * @LastEditors: Please set LastEditors
 */

"use strict";

var https = require('http');
// var fs = require('fs');
var WebSocketServer = require('websocket').server;

var connectionArray = [];
var nextID = Date.now();
var appendToMakeUnique = 1;


// var httpsOptions = {
//   key: fs.readFileSync("/etc/pki/tls/private/mdn-samples.mozilla.org.key"),
//   cert: fs.readFileSync("/etc/pki/tls/certs/mdn-samples.mozilla.org.crt")
// };

/**
 * @description 创建http server
 *
*/
var httpsServer = https.createServer(function(request, response) {
    console.log((new Date()) + " Received request for " + request.url);
    response.writeHead(404);
    response.end();
});

httpsServer.listen(6502, function() {
    console.log((new Date()) + " Server is listening on port 6502");
});


console.log("***CREATING WEBSOCKET SERVER");

/**
 *@description 创建WebSocketServer
 *
 */
var wsServer = new WebSocketServer({
    httpServer: httpsServer,
    autoAcceptConnections: false
});
console.log("***CREATED");

function originIsAllowed(origin) {
  // This is where you put code to ensure the connection should
  // be accepted. Return false if it shouldn't be.
  return true;
}

function isUsernameUnique(name) {
  var isUnique = true;
  var i;

  for (i=0; i]+)>)/ig,"");
              break;
            /**
             * @description 登录的操作,通知其他人展示
            */
            // Username change request
            case "username":
              var nameChanged = false;
              var origName = msg.name;
              while (!isUsernameUnique(msg.name)) {
                msg.name = origName + appendToMakeUnique;
                appendToMakeUnique++;
                nameChanged = true;
              }
              if (nameChanged) {
                var changeMsg = {
                  id: msg.id,
                  type: "rejectusername",
                  name: msg.name
                };
                console.log(101,changeMsg);

                connect.sendUTF(JSON.stringify(changeMsg));
              }
              connect.username = msg.name;
              sendUserListToAll();
              break;
          }

          // Convert the message back to JSON and send it out
          // to all clients.
          /**
           * @desciption 发送给客户端消息
          */
          if (sendToClients) {
            var msgString = JSON.stringify(msg);
            var i;

            for (i=0; i

　　

参考文章

• WebSocketConnection

转载于:https://www.cnblogs.com/yiyi17/p/11457430.html