不用找了,比较全的signalR例子已经为你准备好了.
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:
小提示:注意其它的红色字体部分
前台代码示例:
``` 1 <!DOCTYPE html>
2 3 4 title> 5 6
7 script> 8
9 script> 10
11 script> 12
13 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 information 27 $.connection.hub.start().done(function () { 28 chat.server.hello().done(function (res) { 29 alert(res); 30 })//end of done function 31 })//the end of the $.connection 32 })//end of click function 33 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 $.connection 41 42 });//btntalk end 43 44 }) 45 46 47 //init the client method 48 function init(chat) { 49 50 chat.client.talk = function (message) { 51 var talk =" + message + "
``````
<p>
View Code
</p>
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 $.connection
6
7 });//btntalk end```
chat.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 function
10
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:
<p>
</p>
``` 1 <!DOCTYPE html>
2 <html xmlns="http://www.w3.org/1999/xhtml">
3 <head>
4 <title>title>
5 <!--</span><span style="color: #008000;">Script references. </span><span style="color: #008000;">-->
6
<!--</span><span style="color: #008000;">Reference the jQuery library. </span><span style="color: #008000;">-->
7 <script src="Scripts/jquery-1.10.2.min.js">script>
8
<!--</span><span style="color: #008000;">Reference the SignalR library. </span><span style="color: #008000;">-->
9 <script src="Scripts/jquery.signalR-2.0.2.js">script>
10
<!--</span><span style="color: #008000;">Reference the autogenerated SignalR hub script. </span><span style="color: #008000;">-->
11 <script src='signalr/hubs'>script>
12
<!--</span><span style="color: #008000;">Add script to update the page and send messages.</span><span style="color: #008000;">-->
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 information
27 $.connection.hub.start().done(function () {
28 chat.server.hello($("#txttalk").val()).done(function (res) {
29 var talk = "```
<h1>
</h1>
```" + res + "```
<p>
</p>
```";
30
31 $("#dvtalk").append(talk);
32 })//end of done function
33 })//the end of the $.connection
34 })//end of click function
35
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 $.connection
43
44 });//btntalk end
45
46 })
47
48
49 //init the client method
50 function init(chat) {
51
52 chat.client.talk = function (message) {
53 var talk = "```
<h1>
</h1>
```" + message + "```
<p>
</p>
```";
54
55 $("#dvtalk").append(talk);
56
57 } //end regist the client function
58
59 } //end of the initfunction
60
61 script>
62 head>
63 <body>
64 <div>
65 <table id="tbtoday">table>
66 <input type="text" id="txttalk" width="150"/>
67 <input type="button" id="btnclick" value="clickme" />
68 <input type="button" id="btntalk" value="talkwithme" />
69 <div id="dvtalk">
70
71 div>
72 div>
73 body>
74 html>```
<p>
View Code
</p>
后端代码:
<p>
</p>
``` 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 : Hub
12 {
13 //this is just called by client and return the value for it .
14 public string Hello(string msg)
15 {
16
17 string res = "sorry ,i don't know";
18 if (msg.Contains("hello"))
19 {
20 res = "hello ,guy";
21 }
22 if (msg.Contains("how"))
23 {
24 res = "how are you ~";
25 }
26 if (msg.Contains("love"))
27 {
28 res = "don't fall in love with me ~";
29 }
30 return res;
31 }
32
33
34
35 //this fucntion will be called by client and the inside function
36 //Clients.Others.talk(message);
37 //will be called by clinet javascript function .
38 public void SendMessag(string message)
39 {
40 Clients.Others.talk(message);
41 }
42
43 }
44 }```
<p>
View Code
</p>
效果图:
<----三，客户端刷时时的刷新数据---->
前端：
<p>
</p>
``` 1 <!DOCTYPE html>
2 <html xmlns="http://www.w3.org/1999/xhtml">
3 <head>
4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
5 <title>title>
6 <script src="Scripts/jquery-1.6.4.min.js">script>
7 <script src="Scripts/jquery.signalR-2.2.0.min.js">script>
8 <script src='signalr/hubs'>script>
9 <script>
10 var chat;
11 var arr = [];
12 var loopdo;
13 //
14 $(function () {
15 // Created proxy
16 chat = $.connection.viewDataHub;
17 Init(chat);
18 //on the start done
19 $.connection.hub.start().done(function () {
20
21 $("#btnloop").click(function () {
22 chat.server.refresh().done(function (data) {
23 AppendTable(data);
24 })//done end
25 }) //btnloop end
26
27
28 $("#btnclient").click(function () {
29 chat.server.RefreshClients();
30 });
31
32
33 $("#btnclick").click(function () {
34 Start();
35 });
36
37
38 $("#btnstop").click(function () {
39 Stop();
40 });
41
42 })
43 }) //$function
44
45
46 function Start() {
47 if (loopdo == null) {
48 loopdo = setInterval('$("#btnloop").click()', 1000);
49 }
50
51 }
52
53 function Stop() {
54 if (loopdo != null) {
55 clearInterval(loopdo);
56 }
57 }
58
59 function AppendTable(data) {
60 arr.length = 0;
61 arr.push("
OpendoorPriceOpentiem
<p>
</p>
```");
62 $.each(data, function (i) { 63 arr.push(" “); 64 arr.push(” " + data[i].Opendoor + “```
<p>
</p>
```");
65 arr.push(” " + data[i].Price + “```
<p>
</p>
```");
66 arr.push(” " + data[i].Opentiem + “```
<p>
</p>
```");
67 arr.push("```
<p>
</p>
```");
68 }); 69 $("#tblist”).html(arr.join("")); 70 } 71 72 function Init(chat) { 73 chat.client.myrefresh = function (data) { 74 AppendTable(data); 75 } 76 77 } 78 79 script> 80 head> 81 82 83 84 85 86 87 88 89 90 table> 91 body> 92 93 94 95 html>```
后端：
``` 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 namespace MyReresh.ViewData 8 { 9 [HubName(“viewDataHub”)] 10 public class ViewDataHub : Hub 11 { 12 [HubMethodName(“refresh”)] 13 public List Refresh() 14 { 15 return Stock.GetAll(); 16 } 17 18 [HubMethodName(“RefreshClients”)] 19 public void RefreshClients() 20 { 21 Clients.All.myrefresh(Stock.GetAll()); 22 } 23 24 25 } 26 27 public class Stock 28 { 29 private string opendoor; 30 31 public string Opendoor 32 { 33 get { return opendoor; } 34 set { opendoor = value; } 35 } 36 37 private double price; 38 39 public double Price 40 { 41 get { return price; } 42 set { price = value; } 43 } 44 45 private DateTime opentiem = System.DateTime.Now; 46 47 public DateTime Opentiem 48 { 49 get { return opentiem; } 50 set { opentiem = value; } 51 } 52 53 54 public static List GetAll() 55 { 56 Random rand = new Random(); 57 List list = new List() 58 { 59 new Stock{Opendoor=“Door1”,Price=rand.NextDouble()*100}, 60 new Stock{Opendoor=“Door2”,Price=rand.NextDouble()*100}, 61 new Stock{Opendoor=“Door3”,Price=rand.NextDouble()*100} 62 }; 63 return list; 64 } 65 66 } 67 }```
注：本次实现的所谓的时时刷新数据和官方提供的Demo有很大的差异，并不是后台代码的角度来刷新，而是从前端的角度来实现的。
- 原文作者：大鱼
- 原文链接：https://brucedone.com/archives/172/
- 版权声明：本作品采用知识共享署名-非商业性使用-禁止演绎 4.0 国际许可协议. 进行许可，非商业转载请注明出处（作者，原文链接），商业转载请联系作者获得授权。