using Dapper;
|
using Newtonsoft.Json;
|
using System;
|
using System.Collections.Generic;
|
using System.Configuration;
|
using System.Data;
|
using System.Data.SqlClient;
|
using System.Linq;
|
using System.Text;
|
using System.Threading.Tasks;
|
using System.Web;
|
using VueWebApi.Models;
|
|
namespace VueWebApi.Tools
|
{
|
public class DapperHelper
|
{
|
/// <summary>
|
/// 创建数据库连接对象Sqlserver
|
/// </summary>
|
/// <returns></returns>
|
public static IDbConnection sqlConnection()
|
{
|
//string sqlServerConnectString = "server=***;database=***;User=***;password=***;Connect Timeout=10000";
|
string sqlServerConnectString = ConfigurationManager.AppSettings["DBServer"];
|
|
IDbConnection connection = new SqlConnection(sqlServerConnectString);
|
connection.Open();
|
return connection;
|
}
|
|
/// <summary>
|
/// Dapper查询返回List<T>
|
/// </summary>
|
/// <typeparam name="T">需要返回的对象类型</typeparam>
|
/// <param name="sql">Sql语句</param>
|
/// <param name="parm"></param>
|
/// <returns></returns>
|
public static List<T> select<T>(string sql, Object parm) where T : new()
|
{
|
|
List<T> list = null;
|
using (IDbConnection conn = sqlConnection())
|
{
|
try
|
{
|
list = conn.Query<T>(sql, parm).ToList<T>();
|
}
|
catch (Exception ex)
|
{
|
//创建日志记录组件实例
|
LogHelper.WriteLog(ex);
|
throw ex;
|
}
|
finally
|
{
|
conn.Dispose();
|
conn.Close();
|
}
|
|
}
|
return list;
|
}
|
|
|
/// <summary>
|
/// Dapper查询返回List字典对象 无需手动Wapper对象了
|
/// </summary>
|
/// <param name="sql"></param>
|
/// <param name="parm"></param>
|
/// <returns></returns>
|
public static List<Dictionary<string, Object>> selectToDict(string sql, Object parm)
|
{
|
|
List<Dictionary<string, Object>> result = null;
|
using (IDbConnection conn = sqlConnection())
|
{
|
try
|
{
|
var menus = conn.Query(sql, parm).ToList();
|
result = JsonConvert.DeserializeObject<List<Dictionary<string, Object>>>(JsonConvert.SerializeObject(menus));
|
}
|
catch (Exception ex)
|
{
|
//创建日志记录组件实例
|
LogHelper.WriteLog(ex);
|
throw ex;
|
}
|
finally
|
{
|
conn.Dispose();
|
conn.Close();
|
}
|
}
|
return result;
|
}
|
|
/// <summary>
|
/// Dapper查询返回对象非List集合
|
/// </summary>
|
/// <typeparam name="T"></typeparam>
|
/// <param name="sql"></param>
|
/// <param name="parm"></param>
|
/// <returns></returns>
|
public static T selectToObject<T>(string sql, Object parm) where T : new()
|
{
|
T t = new T();
|
//sql语句
|
using (IDbConnection conn = sqlConnection())
|
{
|
try
|
{
|
t = conn.Query<T>(sql, parm).Single<T>();
|
}
|
catch (Exception ex)
|
{
|
//创建日志记录组件实例
|
LogHelper.WriteLog(ex);
|
throw ex;
|
}
|
finally
|
{
|
conn.Dispose();
|
conn.Close();
|
}
|
}
|
return t;
|
}
|
|
/// <summary>
|
/// dapper通用分页函数
|
/// </summary>
|
/// <typeparam name="T">泛型集合实体类</typeparam>
|
/// <param name="sql">查询语句</param>
|
/// <param name="orderBy">排序（字段 DESC/ASC）</param>
|
/// <param name="pageIndex">当前页</param>
|
/// <param name="pageSize">当前页显示条数</param>
|
/// <param name="total">结果集总数</param>
|
/// <returns></returns>
|
public static IEnumerable<T> GetPageList<T>(string sql, Object parm, string orderBy, string sort, int pageIndex, int pageSize, out int total)
|
{
|
//int skip = 1;
|
//if (pageIndex > 0)
|
//{
|
// skip = (pageIndex - 1) * pageSize + 1;
|
//}
|
StringBuilder sb = new StringBuilder();
|
sb.AppendFormat("SELECT COUNT(1) FROM ({0}) AS Result;", sql);
|
sb.AppendFormat(@"SELECT *
|
FROM(SELECT *,ROW_NUMBER() OVER(ORDER BY {1} {2}) AS RowNum
|
FROM ({0}) AS Temp) AS Result
|
WHERE RowNum >= {3} AND RowNum <= {4}
|
ORDER BY {1} {2}", sql, orderBy, sort, pageIndex, pageSize); //skip, pageIndex * pageSize
|
|
using (IDbConnection conn = sqlConnection())
|
{
|
try
|
{
|
using (var reader = conn.QueryMultiple(sb.ToString(), parm))
|
{
|
total = reader.ReadFirst<int>();
|
return reader.Read<T>();
|
}
|
}
|
catch (Exception ex)
|
{
|
//创建日志记录组件实例
|
LogHelper.WriteLog(ex);
|
throw ex;
|
}
|
finally
|
{
|
conn.Dispose();
|
conn.Close();
|
}
|
|
}
|
}
|
|
/// <summary>
|
/// Dapper查询返回datatable数据(带参数)
|
/// </summary>
|
/// <param name="sql"></param>
|
/// <param name="parm"></param>
|
/// <returns></returns>
|
public static DataTable selectdata(string sql, Object parm)
|
{
|
//sql语句
|
using (IDbConnection conn = sqlConnection())
|
{
|
try
|
{
|
DataTable table = new DataTable();
|
var data = conn.ExecuteReader(sql, parm);
|
table.Load(data);
|
return table;
|
}
|
catch (Exception ex)
|
{
|
//创建日志记录组件实例
|
LogHelper.WriteLog(ex);
|
throw ex;
|
}
|
finally
|
{
|
conn.Dispose();
|
conn.Close();
|
}
|
}
|
}
|
|
/// <summary>
|
/// Dapper查询返回datatable数据(不带参数)
|
/// </summary>
|
/// <param name="sql"></param>
|
/// <returns></returns>
|
public static DataTable selecttable(string sql)
|
{
|
//sql语句
|
using (IDbConnection conn = sqlConnection())
|
{
|
try
|
{
|
DataTable table = new DataTable();
|
var data = conn.ExecuteReader(sql);
|
table.Load(data);
|
return table;
|
}
|
catch (Exception ex)
|
{
|
//创建日志记录组件实例
|
LogHelper.WriteLog(ex);
|
throw ex;
|
}
|
finally
|
{
|
conn.Dispose();
|
conn.Close();
|
}
|
}
|
}
|
|
/// <summary>
|
/// Dapper执行存储过程返回datatable数据(带参数)
|
/// </summary>
|
/// <param name="sql">存储过程名</param>
|
/// <param name="parm">参数</param>
|
/// <returns></returns>
|
public static DataTable selectProcedure(string sql, Object parm)
|
{
|
//sql语句
|
using (IDbConnection conn = sqlConnection())
|
{
|
try
|
{
|
DataTable table = new DataTable();
|
//var data = conn.ExecuteReader(sql, parm);
|
var res = conn.ExecuteReader(sql, parm, commandType: CommandType.StoredProcedure);//sql 存储过程
|
table.Load(res);
|
return table;
|
}
|
catch (Exception ex)
|
{
|
//创建日志记录组件实例
|
LogHelper.WriteLog(ex);
|
throw ex;
|
}
|
finally
|
{
|
conn.Dispose();
|
conn.Close();
|
}
|
}
|
|
}
|
|
/// <summary>
|
/// Dapper查询返回数据条数
|
/// </summary>
|
/// <param name="sql"></param>
|
/// <param name="parm"></param>
|
/// <returns></returns>
|
public static int selectcount(string sql, Object parm)
|
{
|
//sql语句
|
int result = 0;
|
using (IDbConnection conn = sqlConnection())
|
{
|
try
|
{
|
result = conn.Query(sql, parm).Count();
|
}
|
catch (Exception ex)
|
{
|
//创建日志记录组件实例
|
LogHelper.WriteLog(ex);
|
throw ex;
|
}
|
finally
|
{
|
conn.Dispose();
|
conn.Close();
|
}
|
return result;
|
}
|
}
|
|
/// <summary>
|
/// Dapper增删改
|
/// </summary>
|
/// <param name="sql"></param>
|
/// <param name="parametere"></param>
|
/// <returns></returns>
|
public static int SQL(string sql, Object parametere)
|
{
|
//sql语句
|
int result = 0;
|
using (IDbConnection conn = sqlConnection())
|
{
|
try
|
{
|
result = conn.Execute(sql, parametere);
|
}
|
catch (Exception ex)
|
{
|
//创建日志记录组件实例
|
LogHelper.WriteLog(ex);
|
throw ex;
|
}
|
finally
|
{
|
conn.Dispose();
|
conn.Close();
|
}
|
}
|
return result;
|
}
|
|
/// <summary>
|
/// 增加，删除，修改使用的 事务方法 Sqllist为依次执行
|
/// </summary>
|
/// <param name="sqlList"></param>
|
/// <returns></returns>
|
public static bool DoTransaction(List<object> sqlList)
|
{
|
bool result;
|
IDbTransaction tranction = null;
|
using (IDbConnection conn = sqlConnection())
|
{
|
try
|
{
|
tranction = conn.BeginTransaction();
|
for (int i = 0; i < sqlList.Count; i++)
|
{
|
conn.Execute(sqlList[i].GetType().GetProperty("str").GetValue(sqlList[i], null).ToString(), sqlList[i].GetType().GetProperty("parm").GetValue(sqlList[i], null), tranction);
|
}
|
tranction.Commit();
|
result = true;
|
}
|
catch (Exception ex)
|
{
|
//创建日志记录组件实例
|
LogHelper.WriteLog(ex);
|
result = false;
|
tranction.Rollback();
|
throw ex;
|
}
|
finally
|
{
|
conn.Dispose();
|
conn.Close();
|
}
|
return result;
|
}
|
}
|
|
|
/// <summary>
|
/// Dapper插入 返回自增主键Id
|
/// </summary>
|
/// <param name="sql"></param>
|
/// <param name="parameter"></param>
|
/// <param name="tableName">待插入数据的表名</param>
|
/// <returns></returns>
|
public static int insertReturnId(string sql, Object parameter, String tableName)
|
{
|
|
int result = 0;
|
using (IDbConnection conn = sqlConnection())
|
{
|
try
|
{
|
result = conn.Execute(sql, parameter);
|
if (result != 0)
|
{
|
result = conn.Query<int>("select ident_current(@table)", new { table = tableName }).Single<int>();
|
}
|
}
|
catch (Exception ex)
|
{
|
//创建日志记录组件实例
|
LogHelper.WriteLog(ex);
|
throw ex;
|
}
|
finally
|
{
|
conn.Dispose();
|
conn.Close();
|
}
|
}
|
return result;
|
}
|
}
|
}
|
