使用新框架与技术代替旧框架与技术，实现涂装车间后道标签扫码程序

2025-05-14 13:32:38 +08:00
parent 91cd88e285
commit 289e1e84ec
243 changed files with 4368 additions and 49365 deletions
--- a/RIZO_Application.Modules.Base/ViewModels/MqttControlViewModel.cs
+++ b/RIZO_Application.Modules.Base/ViewModels/MqttControlViewModel.cs
@@ -0,0 +1,77 @@
+using MQTTnet.Client;
+using Prism.Events;
+using Prism.Regions;
+using RIZO_Application.Core;
+using RIZO_Application.Core.Mvvm;
+using RIZO_Application.Infrastructure.Model;
+using RIZO_Helper.Tools;
+
+namespace RIZO_Application.Modules.Base.ViewModels
+{
+    public class MqttControlViewModel : RegionViewModelBase
+    {
+        private readonly IEventAggregator _eventAggregator;
+        private MqttHelper? _mqttHepler;
+        private SubscriptionToken _token;
+        public MqttControlViewModel(
+            IRegionManager regionManager,
+            IEventAggregator eventAggregator) 
+            : base(regionManager)
+        {
+            _eventAggregator = eventAggregator;
+            _token = _eventAggregator.GetEvent<ScanEvent>().Subscribe(OnScanEventReceived, ThreadOption.UIThread, true);
+            Task.Run(Mqtt);
+        }
+
+        public async Task Mqtt()
+        {
+            string serverUrl = "noConfig";
+            string clientId = "noConfig";
+            if (MqttConfigs.Current != null)
+            {
+                serverUrl = MqttConfigs.Current.ServerUrl ?? string.Empty;
+                clientId = MqttConfigs.Current.ClientId ?? string.Empty;
+            }
+            _eventAggregator.GetEvent<SystemLogEvent>().Publish($"Mqtt初始化……");
+            _mqttHepler = new MqttHelper(serverUrl, 1883, clientId);
+            _mqttHepler.MessageReceived += HandleMqttMessage;
+            await _mqttHepler.ConnectAsync();
+            await _mqttHepler.SubscribeAsync($"shgg_mes/print/{clientId}");
+            await _mqttHepler.PublishAsync($"shgg_mes/connect/{clientId}","已连接");
+            // await _mqttHepler.SubscribeAsync("shgg_mes/backEnd/SiteComLabelCode");
+            _eventAggregator.GetEvent<SystemLogEvent>().Publish($"Mqtt初始化完成");
+        }
+        // 定义事件处理方法
+        public void HandleMqttMessage(object sender, MqttApplicationMessageReceivedEventArgs e)
+        {
+            // 获取消息的主题
+            string topic = e.ApplicationMessage.Topic;
+            // 获取消息的负载并转换为字符串
+            string payload = System.Text.Encoding.UTF8.GetString(e.ApplicationMessage.Payload);
+            // 打印接收到的消息信息
+            _eventAggregator.GetEvent<SystemLogEvent>().Publish($"收到信息'{topic}': {payload}");
+            // 控制打印
+            PrintDto printMessage = new()
+            {
+                Path = "/",
+                Name = "需要测试打印",
+                Description = "123"
+            };
+            _eventAggregator.GetEvent<PrintEvent>().Publish(printMessage);
+        }
+         private async void OnScanEventReceived(string message)
+        {
+            if(_mqttHepler != null)
+            {
+                //TODO JSON重新构造发送信息
+
+                await _mqttHepler.PublishAsync($"shgg_mes/backEnd/SiteComLabelCode", message);
+            }
+        }
+
+        public void Destroy()
+        {
+            _token?.Dispose();
+        }
+    }
+}