摘要：
谁能阻止平台的趋势？用你的网跑步！http://www.cnblogs.com/dunitian/p/4822808.html#skill上一篇：Dapper的宇宙简介~强类型、动态类型、多映射、多返回值、添加、删除、修改和查询+存储过程+thing case demo官方地址：https://github.com/StackExchange/dapper-dot-net/tree/master/Dapper.Contrib实际案例：https://github.com/dunitian/LoTCode/tree/master/PawChina注意：Model中的Table和Key位于Dapper.Contrib.Extensions命名空间中，粘贴帮助类：//////extension method////publicabstractparticleclassDapperDataAsync｛#region查询系统////将模型密钥获取为int类型//////////˂///returns˃publicstaticsyncTaskGetAsync（intid，IDbTransactiontransaction=null，int？
平台之大势何人能挡？ 带着你的Net飞奔吧！http://www.cnblogs.com/dunitian/p/4822808.html#skill
上一篇文章：Dapper逆天入门~强类型，动态类型，多映射，多返回值，增删改查+存储过程+事物案例演示
官方地址：https://github.com/StackExchange/dapper-dot-net/tree/master/Dapper.Contrib
实战案例：https://github.com/dunitian/LoTCode/tree/master/PawChina（更新ing）
注意点：Model里面的Table和Key是Dapper.Contrib.Extensions命名空间下的~~~~如果不是~~请看下篇文章（点我）
用法很简单，贴一下帮助类：
/// <summary>
/// 扩展方法
/// </summary>
public abstract partial class DapperDataAsync
{
#region 查询系
/// <summary>
/// 获取Model-Key为int类型
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id"></param>
/// <param name="transaction"></param>
/// <param name="commandTimeout"></param>
/// <returns></returns>
public static async Task<T> GetAsync<T>(int id, IDbTransaction transaction = null, int? commandTimeout = null) where T : class, new()
{
using (var conn = ConnFactory.GetConnection())
{
return await conn.GetAsync<T>(id, transaction, commandTimeout);
}
}
/// <summary>
/// 获取Model-Key为long类型
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id"></param>
/// <param name="transaction"></param>
/// <param name="commandTimeout"></param>
/// <returns></returns>
public static async Task<T> GetAsync<T>(long id, IDbTransaction transaction = null, int? commandTimeout = null) where T : class, new()
{
using (var conn = ConnFactory.GetConnection())
{
return await conn.GetAsync<T>(id, transaction, commandTimeout);
}
}
/// <summary>
/// 获取Model-Key为Guid类型
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id"></param>
/// <param name="transaction"></param>
/// <param name="commandTimeout"></param>
/// <returns></returns>
public static async Task<T> GetAsync<T>(System.Guid id, IDbTransaction transaction = null, int? commandTimeout = null) where T : class, new()
{
using (var conn = ConnFactory.GetConnection())
{
return await conn.GetAsync<T>(id, transaction, commandTimeout);
}
}
/// <summary>
/// 获取Model-Key为string类型
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id"></param>
/// <param name="transaction"></param>
/// <param name="commandTimeout"></param>
/// <returns></returns>
public static async Task<T> GetAsync<T>(string id, IDbTransaction transaction = null, int? commandTimeout = null) where T : class, new()
{
using (var conn = ConnFactory.GetConnection())
{
return await conn.GetAsync<T>(id, transaction, commandTimeout);
}
}
/// <summary>
/// 获取Model集合（没有Where条件）
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public static async Task<IEnumerable<T>> GetAllAsync<T>() where T : class, new()
{
using (var conn = ConnFactory.GetConnection())
{
return await conn.GetAllAsync<T>();
}
}
#endregion
#region 增删改
/// <summary>
/// 插入一个Model
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="model"></param>
/// <param name="transaction"></param>
/// <param name="commandTimeout"></param>
/// <param name="sqlAdapter"></param>
/// <returns></returns>
public static async Task<int> InsertAsync<T>(T model, IDbTransaction transaction = null, int? commandTimeout = null) where T : class, new()
{
using (var conn = ConnFactory.GetConnection())
{
return await conn.InsertAsync<T>(model, transaction, commandTimeout);
}
}
/// <summary>
/// 更新一个Model
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="connection"></param>
/// <param name="entityToUpdate"></param>
/// <param name="transaction"></param>
/// <param name="commandTimeout"></param>
/// <returns></returns>
public static async Task<T> UpdateAsync<T>(T model, IDbTransaction transaction = null, int? commandTimeout = null) where T : class, new()
{
using (var conn = ConnFactory.GetConnection())
{
bool b = await conn.UpdateAsync<T>(model, transaction, commandTimeout);
if (b) { return model; }
else { return null; }
}
}
#endregion
#region 分页查询
/// <summary>
/// 分页查询(为什么不用out，请参考：http://www.cnblogs.com/dunitian/p/5556909.html)
/// </summary>
/// <param name="sql">查询语句</param>
/// <param name="p">动态参数</param>
/// <param name="sqlTotal">total语句</param>
/// <param name="p2">Total动态参数</param>
/// <returns></returns>
public static async Task<string> PageLoadAsync<T>(string sql, object p = null, string sqlTotal = "", object p2 = null)
{
var rows = await QueryAsync<T>(sql.ToString(), p);
var total = rows.Count();
if (!sqlTotal.IsNullOrWhiteSpace()) { total = await ExecuteScalarAsync<int>(sqlTotal, p2); }
return new { rows = rows, total = total }.ObjectToJson();
}
#endregion
}