.net core ef mysql 的使用

最新推荐文章于 2025-09-06 09:33:29 发布

转载最新推荐文章于 2025-09-06 09:33:29 发布 · 99 阅读

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原文链接：http://www.cnblogs.com/nopassword/p/6285462.html

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#数据库

本文介绍如何利用Pomelo.EntityFrameworkCore.MySql和Entity Framework Core搭建MySQL数据库环境，包括安装运行环境、创建DBContext及生成数据库等步骤。

第一步，安装运行环境

PM> Install-Package Pomelo.EntityFrameworkCore.MySql

PM> Install-Package Microsoft.EntityFrameworkCore.Tools –Pre

Pomelo的链接已经在.NET CORE官方网站出现，是官方推荐的

第二步，创建DBContext

public class MyContext: DbContext
    {
        public DbSet<ts_weiba> ts_weibas { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
            => optionsBuilder
                .UseMySql(@"server=127.0.0.1;uid=root;pwd=123456;database=coresns;charset=utf8;");
    }

/// <summary>
    /// ts_weiba Entity Model
    /// </summary>    
    public class ts_weiba
    {
        /// <summary>
        /// 微吧ID
        /// </summary>
        [Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
        public int weiba_id { get; set; }
    
        /// <summary>
        /// 
        /// </summary>
        public int cid { get; set; }
    
        /// <summary>
        /// 
        /// </summary>
        public string weiba_name { get; set; }
    
        /// <summary>
        /// 创建者ID
        /// </summary>
        public int uid { get; set; }
    
        /// <summary>
        /// 创建时间
        /// </summary>
        public int ctime { get; set; }
    
        /// <summary>
        /// 微吧logo
        /// </summary>
        public string logo { get; set; }
    
        /// <summary>
        /// 微吧简介
        /// </summary>
        public string intro { get; set; }
    
        /// <summary>
        /// 发帖权限 0-所有人 1-仅成员
        /// </summary>
        public int who_can_post { get; set; }
    
        /// <summary>
        /// 回帖权限 0-所有人 1-仅成员
        /// </summary>
        public int who_can_reply { get; set; }
    
        /// <summary>
        /// 成员数
        /// </summary>
        public int follower_count { get; set; }
    
        /// <summary>
        /// 帖子数
        /// </summary>
        public int thread_count { get; set; }
    
        /// <summary>
        /// 超级圈主uid
        /// </summary>
        public int admin_uid { get; set; }
    
        /// <summary>
        /// 是否设为推荐（热门）0-否，1-是
        /// </summary>
        public int recommend { get; set; }
    
        /// <summary>
        /// 是否通过审核：0-未通过，1-已通过
        /// </summary>
        public int status { get; set; }
    
        /// <summary>
        /// 是否删除 默认为0
        /// </summary>
        public int is_del { get; set; }
    
        /// <summary>
        /// 微吧公告
        /// </summary>
        public string notify { get; set; }
    
        /// <summary>
        /// 
        /// </summary>
        public string avatar_big { get; set; }
    
        /// <summary>
        /// 
        /// </summary>
        public string avatar_middle { get; set; }
    
        /// <summary>
        /// 
        /// </summary>
        public int new_count { get; set; }
    
        /// <summary>
        /// 
        /// </summary>
        public DateTime new_day { get; set; }
    
        /// <summary>
        /// 申请附件信息
        /// </summary>
        public string info { get; set; }
    }

第三步，生成数据库

PM> Add-Migration t1

PM> Update-Database -Verbose

转载于:https://www.cnblogs.com/nopassword/p/6285462.html