zoukankan      html  css  js  c++  java
  • Dapper连接MySql数据库

    首先通过NuGet在项目中分别安装Dapper和MySql.Data的引用

    PM> Install-Package Dapper -Version 1.40.0
    PM> Install-Package MySql.Data -Version 6.7.9

     Web.config

     <connectionStrings>
        <add name="MySqlConnectionString" connectionString="Database=mysql_test;Data Source=localhost;User Id=root;Password=123456;CharSet=utf8;port=3306" />
      </connectionStrings>

     封装一下Dapper 

    public class DapperService
    {
            public static MySqlConnection MySqlConnection()
            {
                string mysqlConnectionString = ConfigurationManager.ConnectionStrings["MySqlConnectionString"].ToString();
                var connection = new MySqlConnection(mysqlConnectionString);
                connection.Open();
                return connection;
            }
    }

     MySql数据库

     User实体

    public class User
    {
            public int ID { get; set; }
    
            public string Name { get; set; }
    
            public bool Sex { get; set; }
    
            public decimal Age { get; set; }
    
            public string Tel { get; set; }
    
            public DateTime? ModifyTime { get; set; }
    }

     Select查询

    using (IDbConnection conn = DapperService.MySqlConnection())
    {
            string sqlCommandStr = @"SELECT * FROM USER";
            List<User> userList = conn.Query<User>(sqlCommandStr).ToList();
            return View(userList);
    }

      Insert插入

    public void InsertInfo(User user)
    {
         string insertSqlStr = @"INSERT INTO  user(Name,Sex,Age,Tel)VALUES(@Name,@Sex,@Age,@Tel)";
    
         using (IDbConnection conn = DapperService.MySqlConnection())
         {
          // conn.Execute(insertSqlStr, new { Name="ssss",Sex=true,Age="22",Tel="2222"}); //这种是手动赋值
              conn.Execute(insertSqlStr, user); //这种是按实体插入
         }
    }
  • 相关阅读:
    多种 网页文本编辑器 分析
    struts2 令牌 实现源代码 JSP
    ibatis 数据库时间 插入数据
    Eclipse/Myeclipse生成serialVersionUID方法
    SSM框架整合遇到的问题
    搭建Elasticsearch5.6.8 分布式集群
    使用SuperWebSocket 构建实时 Web 应用
    HAPROXY
    .NET面试题系列(二)GC
    MongoDB-3.4集群搭建:分片
  • 原文地址:https://www.cnblogs.com/li150dan/p/10101558.html
Copyright © 2011-2022 走看看