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最近在搞一個(gè)直播項(xiàng)目需要聊天服務(wù)器，之前是以小打小鬧來(lái)做的，并沒(méi)有想太多就只有一臺(tái)服務(wù)器。前幾天一下子突然來(lái)了5000人，服務(wù)器瞬間gg，作為開(kāi)發(fā)人員的我很尷尬！ 這就是我們這篇文章的背景。
我使用的是C# Mvc4.0 來(lái)開(kāi)發(fā)的，這里還需要一個(gè)redis 至于你是windows版本還是Linux版本我就不管了，反正是要有個(gè)地址一個(gè)端口，密碼根據(jù)實(shí)際情況填寫(xiě)。
我這里用一個(gè)demo來(lái)展現(xiàn)分布式的情況https://git.oschina.net/908Sharp/signalR-multi-Server.git
***步：新建兩mvc項(xiàng)目
從nuget 中添加以下幾個(gè)包
Install-Package Microsoft.AspNet.SignalR
Install-Package Microsoft.AspNet.SignalR.Redis
install-package Microsoft.Owin.Cors
第二步：在App_Start目錄中添加Owin StartUp類(lèi)
public void Configuration(IAppBuilder app)
{
GlobalHost.DependencyResolver.UseRedis("127.0.0.1", 6379, string.Empty, "SignalRBus");
app.Map("/signalr", map =>
{
map.UseCors(CorsOptions.AllowAll);
var hubConfiguration = new HubConfiguration
{
EnableJSONP = true
};
map.RunSignalR(hubConfiguration);
});
}
注意引用的包啊，騷年們。
第三步：添加ChatHub 類(lèi)
[HubName("chat")]
public class ChatHub:Hub
{
public void Chat(string msg)
{
Clients.All.Display("Receive Msg:" + msg);
}
}
后端就算完成了。
第四步：前端頁(yè)面的創(chuàng)建
記住我上面說(shuō)的demo是兩個(gè)站哦，代碼都一樣的，正式環(huán)境的時(shí)候我們肯定是一份代碼在不同服務(wù)器上部署，指向同一個(gè)redis地址
***我說(shuō)一下 這個(gè)東西是自動(dòng)生成的，你也可以手動(dòng)指定，我還是把代碼貼出來(lái)吧。你也可以F12自己去看。
/*!
* ASP.NET SignalR JavaScript Library v2.2.1
* http://signalr.net/
*
* Copyright (c) .NET Foundation. All rights reserved.
* Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
*
*/
///
///
(function ($, window, undefined) {
///
"use strict";
if (typeof ($.signalR) !== "function") {
throw new Error("SignalR: SignalR is not loaded. Please ensure jquery.signalR-x.js is referenced before ~/signalr/js.");
}
var signalR = $.signalR;
function makeProxyCallback(hub, callback) {
return function () {
// Call the client hub method
callback.apply(hub, $.makeArray(arguments));
};
}
function registerHubProxies(instance, shouldSubscribe) {
var key, hub, memberKey, memberValue, subscriptionMethod;
for (key in instance) {
if (instance.hasOwnProperty(key)) {
hub = instance[key];
if (!(hub.hubName)) {
// Not a client hub
continue;
}
if (shouldSubscribe) {
// We want to subscribe to the hub events
subscriptionMethod = hub.on;
} else {
// We want to unsubscribe from the hub events
subscriptionMethod = hub.off;
}
// Loop through all members on the hub and find client hub functions to subscribe/unsubscribe
for (memberKey in hub.client) {
if (hub.client.hasOwnProperty(memberKey)) {
memberValue = hub.client[memberKey];
if (!$.isFunction(memberValue)) {
// Not a client hub function
continue;
}
subscriptionMethod.call(hub, memberKey, makeProxyCallback(hub, memberValue));
}
}
}
}
}
$.hubConnection.prototype.createHubProxies = function () {
var proxies = {};
this.starting(function () {
// Register the hub proxies as subscribed
// (instance, shouldSubscribe)
registerHubProxies(proxies, true);
this._registerSubscribedHubs();
}).disconnected(function () {
// Unsubscribe all hub proxies when we "disconnect". This is to ensure that we do not re-add functional call backs.
// (instance, shouldSubscribe)
registerHubProxies(proxies, false);
});
proxies['chat'] = this.createHubProxy('chat');
proxies['chat'].client = {};
proxies['chat'].server = {
send: function (message) {
return proxies['chat'].invoke.apply(proxies['chat'], $.merge(["send"], $.makeArray(arguments)));
},
sendOne: function (toUserId, message) {
return proxies['chat'].invoke.apply(proxies['chat'], $.merge(["sendOne"], $.makeArray(arguments)));
}
};
return proxies;
};
signalR.hub = $.hubConnection("/signalr", { useDefaultPath: false });
$.extend(signalR, signalR.hub.createHubProxies());
}(window.jQuery, window));
這一塊是你要是想指定具體路徑也是可以的哦，但是要在后臺(tái)寫(xiě)這么一句話
結(jié)束。
我也剛剛寫(xiě)完，還沒(méi)有放到正式環(huán)境去用，哈哈哈，捂嘴偷笑，吐血了嗎？ 現(xiàn)在我擔(dān)心我們windows版本的redis不穩(wěn)定。
網(wǎng)站欄目：signalR+redis分布式聊天服務(wù)器搭建
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