启动时显示连接字符串

Infrastructure/StartupLogger.cs

@@ -0,0 +1,24 @@
+
+
+using Microsoft.Extensions.Logging;
+
+namespace Infrastructure
+{
+    /// <summary>
+    /// 从3.0开始Startup ConfigureServices中不能使用ILogger，需要扩展
+    /// </summary>
+    public class StartupLogger
+    {
+        private readonly ILogger<StartupLogger> _logger;
+
+        public StartupLogger(ILogger<StartupLogger> logger)
+        {
+            _logger = logger;
+        }
+
+        public void LogInformation(string message)
+        {
+            _logger.LogInformation(message);
+        }
+    }
+}