这几天想着将一个winform的工具上线到web上,因为对时时性的要求比较高,找朋友咨询了一下推荐了SignlarR 框架,比较强大.昨天才看到,今天研究了一下将里面的例子都拿出来共享.
官方的参考:http://www.asp.net/signalr/overview/getting-started
安装SignalR：NuGet命令：
PM> Install-Package Microsoft.AspNet.SignalR
<------------1:与他人聊天:------------>
后台代码示例:
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Web; 5 using Microsoft.AspNet.SignalR; 6 using Microsoft.AspNet.SignalR.Hubs; 7 8 namespace SignalRChat.Hubs.Data 9 {10 [HubName("ViewDataHub")]11 public class ViewDataHub : Hub12 {13 //this is just called by client and return the value for it .14 public string Hello()15 {16 return "hello";17 }18 19 20 21 //this fucntion will be called by client and the inside function 22 //Clients.Others.talk(message);23 //will be called by clinet javascript function .24 public void SendMessag(string message)25 {26 Clients.Others.talk(message);27 }28 29 }30 }View Code小提示:注意其它的红色字体部分
前台代码示例:
1 <!DOCTYPE html> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <title></title> 5 <!--Script references. --> 6 <!--Reference the jQuery library. --> 7 <script src="Scripts/jquery-1.10.2.min.js"></script> 8 <!--Reference the SignalR library. --> 9 <script src="Scripts/jquery.signalR-2.0.2.js"></script>10 <!--Reference the autogenerated SignalR hub script. -->11 <script src='signalr/hubs'></script>12 <!--Add script to update the page and send messages.-->13 <script type='text/Javascript'>14 15 16 $(function () {17 // Declare a PRoxy to reference the hub.18 var chat = $.connection.ViewDataHub;19 20 21 //init the client function 22 init(chat);23 24 25 $("#btnclick").click(function () {26 //Response the information27 $.connection.hub.start().done(function () {28 chat.server.hello().done(function (res) {29 alert(res);30 })//end of done function31 })//the end of the $.connection32 })//end of click function33 34 35 36 $("#btntalk").click(function () {37 $.connection.hub.start().done(function () {38 chat.server.sendMessag($("#txttalk").val());39 $("#txttalk").val("");40 })//the end of the $.connection41 42 });//btntalk end43 44 })45 46 47 //init the client method48 function init(chat) {49 50 chat.client.talk = function (message) {51 var talk = "<h1>" + message + "</h1>";52 53 $("#dvtalk").append(talk);54 55 } //end regist the client function56 57 } //end of the initfunction58 59 </script>60 </head>61 <body>62 <div>63 <table id="tbtoday"></table>64 <input type="text" id="txttalk" width="150"/>65 <input type="button" id="btnclick" value="clickme" />66 <input type="button" id="btntalk" value="talkwithme" />67 <div id="dvtalk">68 69 </div>70 </div>71 </body>72 </html>View Code
出现的效果:
两个窗口之间的聊天
我知道你心中肯定有疑问,我也是这样,当我刚接触的时候完全搞不懂这是为什么会这样,我们来回顾一次正常的聊天过程:
那我们重新拆分以上的方法来证明我们的猜想是否正确
1 $("#btntalk").click(function () {2 $.connection.hub.start().done(function () {3 chat.server.sendMessag($("#txttalk").val());4 $("#txttalk").val("");5 })//the end of the $.connection6 7 });//btntalk endchat.server.sendMessage(message) 从客户端调用了服务器的方法(服务器扮演的是中转站的角色).
此时的message 从客户端A发送给了服务端
那服务器就应该有这样的一个方法与之相对应
后台代码:
1 //this fucntion will be called by client and the inside function 2 //Clients.Others.talk(message);3 //will be called by clinet javascript function .4 public void SendMessag(string message)5 {6 Clients.Others.talk(message);7 }服务端接收到A发送来的message.
这个时候服务端将消息推送给客户端B
Clients.Others.talk(message);
这个时候客户端B应该有一个talk的方法来将消息显示出来
1 //init the client method 2 function init(chat) { 3 4 chat.client.talk = function (message) { 5 var talk = "<h1>" + message + "</h1>"; 6 7 $("#dvtalk").append(talk); 8 9 } //end regist the client function10 11 } //end of the initfunction这个时候客户端B接收到消息,用Js的方法显示出来消息. 一次通话就完成了.
<------------二,客户端传递参数给服务端并从服务端得到返回值:------------>
前端代码:
1 <!DOCTYPE html> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <title></title> 5 <!--Script references. --> 6 <!--Reference the jQuery library. --> 7 <script src="Scripts/jquery-1.10.2.min.js"></script> 8 <!--Reference the SignalR library. --> 9 <script src="Scripts/jquery.signalR-2.0.2.js"></script>10 <!--Reference the autogenerated SignalR hub script. -->11 <script src='signalr/hubs'></script>12 <!--Add script to update the page and send messages.-->13 <script type='text/javascript'>14 15 16 $(function () {17 // Declare a proxy to reference the hub.18 var chat = $.connection.ViewDataHub;19 20 21 //init the client function 22 init(chat);23 24 25 $("#btnclick").click(function () {26 //Response the information27 $.connection.hub.start().done(function () {28 chat.server.hello($("#txttalk").val()).done(function (res) {29 var talk = "<h1>" + res + "</h1>";30 31 $("#dvtalk").append(talk);32 })//end of done function33 })//the end of the $.connection34 })//end of click function35 36 37 38 $("#btntalk").click(function () {39 $.connection.hub.start().done(function () {40 chat.server.sendMessag($("#txttalk").val());41 $("#txttalk").val("");42 })//the end of the $.connection43 44 });//btntal
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