添加serilog日志支持和部分其他efcore代码

QRCodeService/Controllers/PlaygroundController.cs

@@ -6,14 +6,22 @@ using System.Linq;
 using System.Security.Cryptography;
 using System.Text;
 using System.Threading.Tasks;
-
+using Microsoft.Extensions.Logging;
 namespace QRCodeService.Controllers
 {
     [Route("[controller]/[action]")]
     public class PlaygroundController:ControllerBase
     {
+        private readonly ILogger<PlaygroundController> logger;
+
+        public PlaygroundController(ILogger<PlaygroundController> logger)
+        {
+            this.logger = logger;
+        }
+
         public IActionResult GenShortCode(string url)
         {
+            logger.LogInformation("duduledule");
             var codes = new string[2];
             using (var md5 = MD5.Create())
             {