mqttnet rpc例子
时间: 2023-08-06 18:01:42 浏览: 46
以下是使用MQTTnet实现RPC的示例代码:
```csharp
using MQTTnet;
using MQTTnet.Client;
using MQTTnet.Server;
using MQTTnet.Extensions.Rpc;
using System;
using System.Threading.Tasks;
namespace MqttRpcExample
{
class Program
{
static async Task Main(string[] args)
{
// 创建MQTT服务器
var mqttServer = new MqttFactory().CreateMqttServer();
// 创建MQTT客户端
var mqttClient = new MqttFactory().CreateMqttClient();
// 配置MQTT服务器
mqttServer.UseRpc();
// 处理RPC请求
mqttServer.UseRpcRequestHandler(async request =>
{
Console.WriteLine($"Received RPC request: {request.Topic}");
// 处理请求并返回响应
var response = new MqttRpcResponse(request.Id, "Hello RPC!");
return response;
});
// 连接MQTT服务器
await mqttServer.StartAsync(new MqttServerOptions());
// 连接MQTT客户端
var options = new MqttClientOptionsBuilder()
.WithTcpServer("localhost")
.Build();
await mqttClient.ConnectAsync(options);
// 发送RPC请求
var requestTopic = "rpc/request/test";
var responseTopic = "rpc/response/test";
var request = new MqttRpcRequest(requestTopic);
var response = await mqttClient.SendRpcAsync(request, responseTopic);
// 输出响应
Console.WriteLine($"Received RPC response: {response.Topic}: {response.Content}");
// 断开连接
await mqttClient.DisconnectAsync();
await mqttServer.StopAsync();
}
}
}
```
在上面的示例中,我们创建了一个MQTT服务器和一个MQTT客户端,并使用MQTTnet.Extensions.Rpc扩展来实现RPC。
首先,我们配置了MQTT服务器以支持RPC请求处理。然后,我们使用UseRpcRequestHandler方法来处理RPC请求并返回响应。
接下来,我们连接MQTT服务器和MQTT客户端,并使用SendRpcAsync方法来发送RPC请求和接收响应。在发送RPC请求时,我们必须提供请求主题和响应主题。最后,我们断开了MQTT连接。