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WebApplication4/Controllers/WeatherForecastController.cs

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+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using WebApplication4.Services;
+
+namespace WebApplication4.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class WeatherForecastController : ControllerBase
+    {
+
+        private readonly ILogger<WeatherForecastController> _logger;
+        private readonly WebSocketMessageStore _wsStore;
+
+        public WeatherForecastController(
+            ILogger<WeatherForecastController> logger,
+            WebSocketMessageStore wsStore)
+        {
+            _logger = logger;
+            _wsStore = wsStore;
+        }
+
+        // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> WebSocket <20><>Ϣ
+        [HttpGet("lastws")]
+        public IActionResult GetLastWebSocketMessage()
+        {
+            var (message, ts) = _wsStore.Get();
+            if (message == null)
+            {
+                return NotFound(new
+                {
+                    success = false,
+                    message = "<22><>δ<EFBFBD>յ<EFBFBD><D5B5>κ<EFBFBD> WebSocket <20><>Ϣ<EFBFBD><CFA2>"
+                });
+            }
+
+            return Ok(message);
+        }
+    }
+}