dajpper使用教程

1.表结构

2、程序对应的实体类

3、基本操作

• 3.1 插入

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  public int Insert(Person person, string _ConnString) { using (IDbConnection connection = new SqlConnection(_ConnString)) { return connection.Execute("insert into Person(Name,Remark) values(@Name,@Remark)", person); } }

• 3.2 删除

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  public int Delete(Person person, string connectionString) { using (IDbConnection connection = new SqlConnection(connectionString)) { return connection.Execute("delete from Person where id=@ID", person); } }

• 3.3 修改

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  public int Update(Person person, string connectionString) { using (IDbConnection connection = new SqlConnection(connectionString)) { return connection.Execute("update Person set name=@Name where id=@ID", person); } }

• 3.4 查询

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  /// <summary> /// 批量修改 /// </summary> /// <param name="persons"></param> /// <param name="connectionString"></param> /// <returns></returns> public int Update(List<Person> persons, string connectionString) { using (IDbConnection connection = new SqlConnection(connectionString)) { return connection.Execute("update Person set name=@name where id=@ID", persons); } } /// <summary> /// 无参查询所有数据 /// </summary> /// <returns></returns> public List<Person> Query(string connectionString) { using (IDbConnection connection = new SqlConnection(connectionString)) { return connection.Query<Person>("select * from Person").ToList(); } }

• 其余内容：https://hongmaju.github.io/2018/06/19/Dapper%E7%9A%84%E4%BD%BF%E7%94%A8%E8%AF%B4%E6%98%8E/#more