【发布时间】：2013-08-19 13:11:09
【问题描述】：
定义 Hub 的控制器类
public abstract class MonitoringProfileLogChartController : Croem.NotificationManager.Website.Base.BaseController.BaseController
{
public ActionResult Index()
{
BusinessLogicReturn result = new ProcessBusinessLogic.Logic().GetRegisteredContexts();
return base.TransalateToAction(result);
}
public ActionResult LiveMonitoringProfileLogChart()
{
return View();
}
public ActionResult test()
{
return View();
}
**below is rest of the code of controller where our focus should be**
public JsonResult GetMonitoringProfileLogChart(string FromDate, string ToDate, int ContextId)
{
BusinessLogicReturn result = new ProcessBusinessLogic.Logic().GetMonitoringProfileLogChart(FromDate, ToDate, ContextId);
return Json(result.Model, JsonRequestBehavior.AllowGet);
}
public JsonResult GetMonitoringProfileLiveLogChart(string FromTime, string ToTime, string DataMinutes)
{
BusinessLogicReturn result = new ProcessBusinessLogic.Logic().GetMonitoringProfileLiveLogChart(FromTime, ToTime, DataMinutes);
IHubContext context = GlobalHost.ConnectionManager.GetHubContext<MyHub>();
context.Clients.All.addMessage(result.Model);
var hub = new MyHub();
hub.Send("", "");
return Json(result.Model, JsonRequestBehavior.AllowGet);
}
public JsonResult GetMonitoringProfileCombinationChart(string FromTime, string ToTime)
{
BusinessLogicReturn result = new ProcessBusinessLogic.Logic().GetMonitoringProfileCombinationChart(FromTime, ToTime);
return Json(result.Model, JsonRequestBehavior.AllowGet);
}
}
public class MyHub : Hub
{
IHubContext context = GlobalHost.ConnectionManager.GetHubContext<MyHub>();
public void Send(string name, string message)
{
BusinessLogicReturn result = new ProcessBusinessLogic.Logic().GetMonitoringProfileLiveLogChart(null, null, null);
context.Clients.All.addMessage(result.Model);
}
public void test()
{
BusinessLogicReturn result = new ProcessBusinessLogic.Logic().GetMonitoringProfileLiveLogChart(null, null, null);
context.Clients.All.addMessage(result.Model);
}
}
用于映射服务器 url 的控制台应用程序
class Program
{
static void Main(string[] args)
{
string info = LoggingServer.Open();
Console.WriteLine(info);
string url = "http://localhost:8080";
using (WebApp.Start<Startup>(url))
{
Console.WriteLine("Server running on {0}", url);
var hubs = new Croem.NotificationManager.Website.Base.Controllers.MyHub();
Console.ReadLine();
}
LoggingServer.Close();
}
class Startup
{
public void Configuration(IAppBuilder app)
{
// Turn cross domain on
var config = new HubConfiguration { EnableCrossDomain = true };
// This will map out to http://localhost:8080/signalr by default
app.MapHubs(config);
}
}
}
客户页面
<!DOCTYPE html>
<html>
<head>
<title>SignalR Live Chat</title>
</head>
<body>
<div class="container">
<input type="text" id="message" />
<input type="button" id="sendmessage" value="Send" />
<input type="hidden" id="displayname" />
<strong>Error Count</strong>
<input type="text" id="Error_count" value="0" />
<ul id="discussion"></ul>
</div>
<!--Script references. -->
<!--Reference the jQuery library. -->
<script src="Scripts/jquery-1.7.1.min.js"></script>
<!--Reference the SignalR library. -->
<script src="Scripts/jquery.signalR-1.1.3.js"></script>
<!--Reference the autogenerated SignalR hub script. -->
<script src="http://localhost:8080/signalr/hubs"></script>
<!--Add script to update the page and send messages.-->
<script type="text/javascript">
var chart;
var timer;
$(function () {
Highcharts.setOptions({
global: {
useUTC: false
}
});
//Set the hubs URL for the connection
$.connection.hub.url = "http://localhost:8080/signalr";
// Declare a proxy to reference the hub.
var chat = $.connection.myHub;
// Create a function that the hub can call to broadcast messages.
chat.client.addMessage = function (data) {
dataRecieved(data);
clearInterval(timer);
timer = setInterval(function () {
dataNotRecieved();
}, 10000);
};
$.connection.hub.logging = true;
$.connection.hub.start().done(function () {
$('#sendmessage').click(function () {
// Call the Send method on the hub.
chat.server.send($('#displayname').val(), $('#message').val());
// Clear text box and reset focus for next comment.
$('#message').val('').focus();
});
});
$.ajax({
type: "GET",
dataType: "json",
data: {
DataMinutes: 5,
FromTime: null,
ToTime: null
},
url: "@Url.Action("GetMonitoringProfileLiveLogChart", "MonitoringProfileLogChart")",
success: function (data) {
chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'spline',
animation: Highcharts.svg, // don't animate in old IE
marginRight: 10,
},
title: {
text: 'Live Profile Monitoring'
},
xAxis: {
type: 'datetime',
tickPixelInterval: 150
},
yAxis: {
title: {
text: 'Value'
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
tooltip: {
formatter: function () {
return '<b>' + this.series.name + '</b><br/>' +
Highcharts.dateFormat('%Y-%m-%d %H:%M:%S', this.x) + '<br/>' +
Highcharts.numberFormat(this.y, 2);
}
},
legend: {
enabled: true
},
exporting: {
enabled: false
},
series: data.series,
});
}
});
timer = setInterval(function () {
dataNotRecieved();
}, 10000);
function dataNotRecieved() {
var shift = false;
for (var j = 0; j < chart.series.length; j++) {
if (chart.series[j].data.length < 50) {
shift = false;
}
else {
shift = true;
}
chart.series[j].addPoint([new Date().getTime() - 4 * 1000 * 60 * 60, 0], true, shift);
}
}
function dataRecieved(data) {
// checking if series exsist in chart but is not in data coming from ajax call . and if it does not exsist add that series point with zero
var series_name_exist = 0;
var series_exist = 0;
var index = 0;
var shift = false;
var length = chart.series.length;
for (var j = 0; j < chart.series.length; j++) {
for (var k = 0; k < data.series.length; k++) {
if (chart.series[j].name == data.series[k].name) {
series_name_exist = 1;
break;
}
}
if (series_name_exist == 0) {
if (chart.series[j].data.length < 50) {
shift = false;
}
else {
shift = true;
}
chart.series[j].addPoint([new Date().getTime() - 4 * 1000 * 60 * 60, 0], true, shift);
}
else {
series_name_exist = 0;
}
}
// if series exist add point otherwise add series
for (var k = 0; k < data.series.length; k++) {
for (var j = 0; j < chart.series.length; j++) {
if (chart.series[j].name == data.series[k].name) {
series_exist = 1;
index = j;
break;
}
}
if (series_exist == 1) {
if (chart.series[index].data.length < 50) {
shift = false;
}
else {
shift = true;
}
//chart.series[index].addPoint([data.series[k].time, data.series[k].count], true, shift);
chart.series[index].addPoint([new Date().getTime() - 4 * 1000 * 60 * 60, data.series[k].count], true, shift);
series_exist = 0;
}
else {
chart.addSeries({ name: '' + data.series[k].name + '', data: [] });
//chart.series[length].addPoint([data.series[k].time, data.series[k].count], true);
chart.series[length].addPoint([new Date().getTime() - 4 * 1000 * 60 * 60, data.series[k].count], true);
length = length + 1;
}
}
}
$('#message').focus();
// Start the connection.
});
</script>
<div id="container" style="min-width: 400px; height: 400px; margin: 0 auto"></div>
</body>
</html>
实际画面 第一个选择的类是用于映射服务器 url 的控制台应用程序类 2nd Selected 类是定义集线器的控制器类
当我创建一个调用 MyHub 的对象并从控制器调用它时，我遇到了一个问题，该函数被调用但另一方面，当我按下屏幕上的发送按钮时，我的 HTML 页面上没有显示任何内容但输出也显示在页面上。请告诉我为什么会发生这种情况以及如何从控制器调用函数以便输出也显示在 HTMLpage 上。我想我没有指定它应该写入的集线器 URL，这就是它的原因当我直接从控制器类发送它而不是从客户端调用集线器函数时不调用客户端函数，因为在客户端聊天 URL 中指定了，我认为这就是为什么当我从客户端页面调用发送函数时执行添加消息。我是无法找到指定集线器地址的方法
当我按下屏幕上的发送按钮时，会显示此日志消息：SignalR: Triggering client hub event 'addMessage' on hub 'MyHub'。”。
但是当我在“GetMonitoringProfileLiveLogChart”函数中直接从控制器调用它时，不会显示此日志消息。
SignalR 1.1.3 版
【问题讨论】：
标签： javascript asp.net-mvc-4 signalr signalr-hub signalr.client