添加serilog日志支持和部分其他efcore代码

QRCodeService/appsettings.json

@@ -6,5 +6,38 @@
       "Microsoft.Hosting.Lifetime": "Information"
     }
   },
-  "AllowedHosts": "*"
+  "AllowedHosts": "*",
+  "Serilog": {
+    "Using": [ "SeriLog.Sinks.Console", "Serilog.Sinks.File", "Serilog.Sinks.Async" ],
+    "MinimumLevel": {
+      "Default": "Information",
+      "Override": {
+        "Microsoft": "Warning",
+        "System": "Warning"
+      }
+    },
+    "WriteTo": [
+      {
+        "Name": "Console"
+      },
+      {
+        "Name": "Async",
+        "Args": {
+          "configure": [
+            {
+              "Name": "File",
+              "Args": {
+                "path": "Logs/log.txt",
+                "rollingInterval": "Day"
+              }
+            }
+          ]
+        }
+      }
+    ],
+    "Enrich": [ "FromLogContext", "WithMachineName", "WithThreadId" ],
+    "Properties": {
+      "Application": "SerilogExample"
+    }
+  }
 }