一、代码框架搭建

搭建如下代码架构：

重点含EntityFrameworkCore工程，该工程中包含AppDbContext.cs和数据表实体AggregateObject

 1、AppDbContext 代码案例

//AppDbContext 代码案例using Microsoft.EntityFrameworkCore;namespace EntityFrameworkCore
{public class AppDbContext : DbContext{public AppDbContext(DbContextOptions<AppDbContext> options) : base(options){}protected override void OnModelCreating(ModelBuilder modelBuilder){base.OnModelCreating(modelBuilder);// 增加以下代码配置modelBuilder.ConfigDatabaseDescription();}public DbSet<CFUserAggregate> CFUserAggregate { get; set; } // 示例：User 是你的实体类// 添加其他 DbSet<T> 来表示其他数据表}}

2、实体案例 

1）AggregateRootBase类：

     存放表公共字段，例状态、创建时间等 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.ComponentModel.DataAnnotations;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;namespace EntityFrameworkCore
{public abstract class AggregateRootBase{[Key] // 主键[StringLength(36)] // 字符串长度限制[DbDescription("主键ID")]public Guid? Id { get; set; }[StringLength(36)][DbDescription("创建人ID")]public Guid? CreateUserGuid { get; set; }[Required][DbDescription("创建时间")]public DateTime? CreateDateTime { get; set; }[StringLength(36)][DbDescription("修改人ID")]public Guid? ModifyUserGuid { get; set; }[DbDescription("修改时间")]public DateTime? ModifyDateTime { get; set; }}
}

2）CFUserAggregate 实体 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.ComponentModel.DataAnnotations;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;namespace EntityFrameworkCore
{[Table("CF_User")][DbDescription("用户表")]public class CFUserAggregate : AggregateRootBase{[Required][StringLength(15)] // 字符串长度限制[DbDescription("登录人手机号码")]public string PhoneNumber { get; set; }[Required][StringLength(100)] // 字符串长度限制[DbDescriptio