69 lines
2.6 KiB
C#
69 lines
2.6 KiB
C#
using Microsoft.EntityFrameworkCore;
|
||
using System.ComponentModel.DataAnnotations;
|
||
using System.ComponentModel.DataAnnotations.Schema;
|
||
|
||
namespace MachineJob
|
||
{
|
||
/// <summary>
|
||
/// 数据库写入上下文
|
||
/// 用于 Entity Framework Core 访问 MySQL 数据库
|
||
/// </summary>
|
||
public class DatabaseWriteContext : DbContext
|
||
{
|
||
// 配置根对象
|
||
private static readonly IConfigurationRoot configuration = new ConfigurationBuilder()
|
||
// 设置配置文件的基础路径
|
||
.SetBasePath(Directory.GetCurrentDirectory())
|
||
// 添加 appsettings.default.json 配置文件（必需）
|
||
.AddJsonFile("appsettings.default.json", optional: false, reloadOnChange: true)
|
||
// 添加 appsettings.json 配置文件（必需）
|
||
.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
|
||
// 根据环境变量添加对应的配置文件（可选）
|
||
.AddJsonFile($"appsettings.{Environment.GetEnvironmentVariable("DOTNET_ENVIRONMENT") ?? Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT") ?? "Production"}.json", optional: true, reloadOnChange: true)
|
||
.Build();
|
||
|
||
// 从配置读取数据库连接字符串
|
||
private static readonly string connectionString = configuration.GetConnectionString("DatabaseWriteConnectionString")!;
|
||
|
||
/// <summary>
|
||
/// 数据库写入实体集合
|
||
/// </summary>
|
||
public DbSet<DatabaseWriteEntity>? DatabaseWrites { get; set; }
|
||
|
||
/// <summary>
|
||
/// 配置数据库上下文
|
||
/// 使用 MySQL 数据库
|
||
/// </summary>
|
||
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
|
||
{
|
||
// 使用 MySQL，自动检测服务器版本
|
||
optionsBuilder.UseMySql(connectionString, ServerVersion.AutoDetect(connectionString));
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 数据库写入实体类
|
||
/// 映射到 databasewrites 表
|
||
/// </summary>
|
||
[Table(name: "databasewrites")]
|
||
public partial class DatabaseWriteEntity
|
||
{
|
||
/// <summary>
|
||
/// 主键 ID
|
||
/// </summary>
|
||
[Key]
|
||
public int Id { get; set; }
|
||
|
||
/// <summary>
|
||
/// 更新时间
|
||
/// </summary>
|
||
public DateTime UpdateTime { get; set; }
|
||
|
||
// 注意：Value1 到 Value10 属性由 DatabaseWriteEntityCodeGenerator 代码生成器自动生成
|
||
// public double? Value1 { get; set; }
|
||
// public double? Value2 { get; set; }
|
||
// ...
|
||
// public double? Value10 { get; set; }
|
||
}
|
||
}
|