Chunyi
2be5694a6f
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。
46 lines
1.5 KiB
C#
46 lines
1.5 KiB
C#
using System;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.EntityFrameworkCore.Diagnostics;
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using Microsoft.Extensions.Logging;
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using Pomelo.EntityFrameworkCore.MySql.Infrastructure;
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var builder = WebApplication.CreateBuilder(args);
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// 讀取連線字串
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var connectionString = builder.Configuration.GetConnectionString("DefaultConnection")
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?? throw new InvalidOperationException("Connection string 'DefaultConnection' not found.");
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// EF Core + Pomelo MySQL 註冊
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builder.Services.AddDbContext<ApplicationDbContext>(options =>
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{
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var serverVersion = new MariaDbServerVersion(new Version(10, 6, 0));
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options.UseMySql(connectionString, serverVersion, mySqlOptions =>
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{
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// 字元集設定
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mySqlOptions.CharSet(CharSet.Utf8Mb4);
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mySqlOptions.CharSetBehavior(CharSetBehavior.AppendToAllColumns);
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// 可選：重試策略
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mySqlOptions.EnableRetryOnFailure(5, TimeSpan.FromSeconds(10), null);
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});
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// 開發環境顯示更詳細的資料庫日誌
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if (builder.Environment.IsDevelopment())
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{
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options.EnableDetailedErrors();
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options.EnableSensitiveDataLogging();
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options.LogTo(Console.WriteLine, LogLevel.Information, DbContextLoggerOptions.DefaultWithLocalTime);
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}
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});
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// Logging（只在開發環境加強輸出 EF Core 訊息）
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if (builder.Environment.IsDevelopment())
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{
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builder.Logging.AddConsole()
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.AddFilter("Microsoft.EntityFrameworkCore.Database.Command", LogLevel.Information)
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.AddFilter("Microsoft.EntityFrameworkCore.Infrastructure", LogLevel.Information);
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}
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var app = builder.Build();
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app.Run(); |