.Net Core 2.0 使用EF连接MySQL数据库

Install-Package MySql.Data.EntityFrameworkCore

Install-Package Pomelo.EntityFrameworkCore.MySql

1 public class Person
2 {
3 　　public long Id { get; set; }
4 　　public string Name { get; set; }
5 　　public int Age { get; set; }
6 　　public bool? Gender { get; set; }
7 }

 1 using Microsoft.EntityFrameworkCore;
 2 
 3 namespace EFCore
 4 {
 5     public class MyDbContext:DbContext
 6     {
 7         public DbSet<Person> Persons { get; set; }
 8         protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
 9         {
10             base.OnConfiguring(optionsBuilder);
11             optionsBuilder.UseMySQL("Server=127.0.0.1;database=testdb;uid=root");//配置连接字符串
12         }
13         protected override void OnModelCreating(ModelBuilder modelBuilder)
14         {
15             base.OnModelCreating(modelBuilder);
16             var etPerson = modelBuilder.Entity<Person>().ToTable("t_persons");
17             etPerson.Property(e => e.Age).IsRequired();//不写IsRequired,默认为可空
18             etPerson.Property(e => e.Gender).IsRequired();
19             etPerson.Property(e => e.Name).HasMaxLength(20).IsRequired();
20         }
21 
22     }
23 }

 1 using System;
 2 
 3 namespace EFCore
 4 {
 5     class Program
 6     {
 7         static void Main(string[] args)
 8         {
 9             using (MyDbContext ctx = new MyDbContext())
10             {
11                 Person p = new Person();
12                 p.Name = "赵云";
13                 p.Age = 15;
14                 p.Gender = true;
15                 ctx.Persons.Add(p);
16                 ctx.SaveChanges();
17                 Console.WriteLine(p.Id);   
18             }
19             Console.ReadKey();
20         }
21     }
22 }