From 2be5694a6f3b41c3c4f38b4f1fb2b16dd2561312 Mon Sep 17 00:00:00 2001
From: Chunyi <chunyichen.talktalk@gmail.com>
Date: Fri, 26 Sep 2025 16:40:14 +0800
Subject: [PATCH] =?UTF-8?q?=E6=95=B4=E5=90=88=20Entity=20Framework=20Core?=
 =?UTF-8?q?=20=E8=88=87=20Pomelo=20MySQL?=
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此次變更新增必要的命名空間，設置資料庫連接字串，並透過 `AddDbContext` 註冊 `ApplicationDbContext`。配置 MySQL 伺服器版本及相關選項，包括字符集和重試機制。根據開發環境啟用詳細錯誤和敏感數據日誌記錄，並添加控制台日誌記錄的過濾器。最後，應用程式被構建並運行。
---
 Program.cs | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Program.cs

diff --git a/Program.cs b/Program.cs
new file mode 100644
index 0000000..fce92ad
--- /dev/null
+++ b/Program.cs
@@ -0,0 +1,46 @@
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Diagnostics;
+using Microsoft.Extensions.Logging;
+using Pomelo.EntityFrameworkCore.MySql.Infrastructure;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Ū���s�u�r��
+var connectionString = builder.Configuration.GetConnectionString("DefaultConnection")
+    ?? throw new InvalidOperationException("Connection string 'DefaultConnection' not found.");
+
+// EF Core + Pomelo MySQL ���U
+builder.Services.AddDbContext<ApplicationDbContext>(options =>
+{
+    var serverVersion = new MariaDbServerVersion(new Version(10, 6, 0));
+
+    options.UseMySql(connectionString, serverVersion, mySqlOptions =>
+    {
+        // �r�����]�w
+        mySqlOptions.CharSet(CharSet.Utf8Mb4);
+        mySqlOptions.CharSetBehavior(CharSetBehavior.AppendToAllColumns);
+        // �i��G���յ���
+        mySqlOptions.EnableRetryOnFailure(5, TimeSpan.FromSeconds(10), null);
+    });
+
+    // �}�o������ܧ�ԲӪ���Ʈw��x
+    if (builder.Environment.IsDevelopment())
+    {
+        options.EnableDetailedErrors();
+        options.EnableSensitiveDataLogging();
+        options.LogTo(Console.WriteLine, LogLevel.Information, DbContextLoggerOptions.DefaultWithLocalTime);
+    }
+});
+
+// Logging�]�u�b�}�o���ҥ[�j��X EF Core �T���^
+if (builder.Environment.IsDevelopment())
+{
+    builder.Logging.AddConsole()
+        .AddFilter("Microsoft.EntityFrameworkCore.Database.Command", LogLevel.Information)
+        .AddFilter("Microsoft.EntityFrameworkCore.Infrastructure", LogLevel.Information);
+}
+
+var app = builder.Build();
+
+app.Run();
\ No newline at end of file