无法通过Java脚本访问SignalR 2.0集线器公共方法
我正在尝试使用SignalR hub中的以下服务器代码获取已连接用户的列表。对于存储在内存中的数据,我使用以下类:无法通过Java脚本访问SignalR 2.0集线器公共方法,signalr,signalr-hub,Signalr,Signalr Hub,我正在尝试使用SignalR hub中的以下服务器代码获取已连接用户的列表。对于存储在内存中的数据,我使用以下类: public class UserInfo { public string ConnectionId { get; set; } public string UserName { get; set; } public string Role { get; set; } } 当用户已连接时,我将用户添加到已连接用户列表
public class UserInfo
{
public string ConnectionId { get; set; }
public string UserName { get; set; }
public string Role { get; set; }
}
当用户已连接时,我将用户添加到已连接用户列表中:
public override Task OnConnected()
{
if (Context.User.Identity.IsAuthenticated)
{
if (Context.User.IsInRole("User"))
{
ui.Add(new UserInfo { ConnectionId = Context.ConnectionId, UserName = Context.User.Identity.Name, Role = "User" });
}
else
{
ui.Add(new UserInfo { ConnectionId = Context.ConnectionId, UserName = Context.User.Identity.Name, Role = "Operator" });
}
}
return base.OnConnected();
}
public IEnumerable<UserInfo> GetUsers()
{
var x = (from a in ui where a.Role == "User" select new UserInfo { UserName = a.UserName, ConnectionId = a.ConnectionId }).ToList();
return x;
}
public IEnumerable<UserInfo> GetOperators()
{
var y = (from a in ui where a.Role == "Operator" select new UserInfo { UserName = a.UserName, ConnectionId = a.ConnectionId }).ToList();
return y;
}
以下是我获取当前已连接用户列表的方式:
public override Task OnConnected()
{
if (Context.User.Identity.IsAuthenticated)
{
if (Context.User.IsInRole("User"))
{
ui.Add(new UserInfo { ConnectionId = Context.ConnectionId, UserName = Context.User.Identity.Name, Role = "User" });
}
else
{
ui.Add(new UserInfo { ConnectionId = Context.ConnectionId, UserName = Context.User.Identity.Name, Role = "Operator" });
}
}
return base.OnConnected();
}
public IEnumerable<UserInfo> GetUsers()
{
var x = (from a in ui where a.Role == "User" select new UserInfo { UserName = a.UserName, ConnectionId = a.ConnectionId }).ToList();
return x;
}
public IEnumerable<UserInfo> GetOperators()
{
var y = (from a in ui where a.Role == "Operator" select new UserInfo { UserName = a.UserName, ConnectionId = a.ConnectionId }).ToList();
return y;
}
无法访问无法永久公开的方法GetOperators/GetUsers,并且我没有在客户端接收数据:
$(function () {
// Declare a proxy to reference the hub.
var chat = $.connection.chatHub;
//Here I'm calling hub public methods
chat.getOperators = function (data) {
alert(data);
};
chat.getUsers = function (data) {
alert(data);
};
// Create a function that the hub can call to broadcast messages.
chat.client.addChatMessage = function (name, message) {
// Html encode display name and message.
var encodedName = $('<div />').text(name).html();
var encodedMsg = $('<div />').text(message).html();
// Add the message to the page.
$('#discussion').append('<li><strong>' + encodedName
+ '</strong>: ' + encodedMsg + '</li>');
};
// Get the user name and store it to prepend to messages.
$('#displayname').val(prompt('Enter your name:', ''));
// Set initial focus to message input box.
$('#message').focus();
// Start the connection.
$.connection.hub.start().done(function () {
$('#sendmessage').click(function () {
// Call the Send method on the hub.
chat.server.sendChatMessage($('#displayname').val(), $('#message').val());
// Clear text box and reset focus for next comment.
$('#message').val('').focus();
});
});
});
请你试试这个好吗
//on your client action do a server call
chat.server.getOperators();
及
而不是
chat.getOperators = function (data) {
alert(data);
};
chat.getUsers = function (data) {
alert(data);
};
请你试试这个好吗
//on your client action do a server call
chat.server.getOperators();
及
而不是
chat.getOperators = function (data) {
alert(data);
};
chat.getUsers = function (data) {
alert(data);
};
您对服务器的调用语法错误;这是:
chat.getUsers = function (data) {
alert(data);
};
只需将chat.getUsers定义为一个函数
你可能想要
chat.server.getUsers().done(function(data) {
console.log(data);
}).fail(function(error) {
console.log("failed to get data", error);
});
再看一看。您对服务器的调用语法错误;这是:
chat.getUsers = function (data) {
alert(data);
};
只需将chat.getUsers定义为一个函数
你可能想要
chat.server.getUsers().done(function(data) {
console.log(data);
}).fail(function(error) {
console.log("failed to get data", error);
});
再看一看。你在哪里调用服务器方法GetUsers/GetOperators?我更新了JS部分,你可以在那里看到注释。你在哪里调用服务器方法GetUsers/GetOperators?我更新了JS部分,你可以在那里看到注释。我没有尝试,我有一个问题-如何显示chat.server.GetUsers收到的数据;没有使用功能?没有尝试,我有一个问题-如何显示chat.server.getUsers接收到的数据;没有使用函数?嗯,这样的调用我尝试了alredy,但让我再试一次。嗯,这样的调用我尝试了alredy,但让我再试一次。