[英]How can I send a private message to a user with aspnet core SignalR?
I created a project x and I can't see where the error is.我创建了一个项目 x,但我看不到错误在哪里。 Everything works but the private message doesn't work.一切正常,但私人消息不起作用。 The link below is my sample project.下面的链接是我的示例项目。 In my real project, there is a feature called connectionToken in context on the client.在我的真实项目中,客户端的上下文中有一个名为 connectionToken 的功能。 How can I get the connectionToken value or why is it there?如何获取 connectionToken 值或为什么存在?
**I use Redis backplane in my real project Example project link: https://github.com/fdevGit/SignalRExample **我在实际项目中使用 Redis 背板 示例项目链接: https://github.com/fdevGit/SignalRExample
From the code you provide, use Clients.User()
not Clients.Client()
.从您提供的代码中,使用Clients.User()
而不是Clients.Client()
。
Clients.User(...)
takes a user identifier. Clients.User(...)
采用用户标识符。 Your parameter is connectionId which is a different concept and used with Clients.Client(...)
.您的参数是 connectionId ,这是一个不同的概念,与Clients.Client(...)
一起使用。
public async Task SendMessageToUser(string user, string targetConnectionId, string message)
{
Console.WriteLine($"{Context.ConnectionId}-{targetConnectionId}-{message}");
//await Clients.User(...)
await Clients.Client(targetConnectionId).SendAsync("ReceiveMessageToUser", user, targetConnectionId, message);
}
There is one more suggestion about the name of callback method
.关于callback method
的名称还有一个建议。 Return different method name in SendAsync()
.在SendAsync()
中返回不同的方法名称。
public async Task SendMessageToMe(string user, string message)
{
Console.WriteLine($"{Context.ConnectionId}-Caller-{message}");
await Clients.Caller.SendAsync("ReceiveMessageToMe", user, message);
}
public async Task SendMessageToUser(string user, string targetConnectionId, string message)
{
Console.WriteLine($"{Context.ConnectionId}-{targetConnectionId}-{message}");
await Clients.Client(targetConnectionId).SendAsync("ReceiveMessageToUser", user, targetConnectionId, message);
}
Same change in char.js char.js 中的相同变化
connection.on("ReceiveMessageToMe", function (user, message) {
var msg = message.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">");
var encodedMsg = user + " says " + msg;
var li = document.createElement("li");
li.textContent = encodedMsg;
document.getElementById("messagesList").appendChild(li);
});
connection.on("ReceiveMessageToUser", function (user, targetConnectionId, message) {
var msg = message.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">");
var encodedMsg = user + " says " + msg + " by " + targetConnectionId;
var li = document.createElement("li");
li.textContent = encodedMsg;
document.getElementById("messagesList").appendChild(li);
});
Screenshots of Test测试截图
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.