using AUCMA.STORE.Common;
using AUCMA.STORE.Entity;
using AUCMA.STORE.Entity.DAO;
using SqlSugar;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;

namespace AUCMA.STORE.SqlSugar.serviceImpl
{
    public class BaseServices<TEntity> : IBaseServices<TEntity> where TEntity : class, new()
    {
        private SqlSugarClient _dbBase;

        private SqlSugarClient _db
        {
            get
            {
                try
                {
                    _dbBase = new SqlSugarClient(new ConnectionConfig()
                    {
                        ConnectionString = ConfigHelper.GetConfig("OracleDataSource"),
                        DbType = DbType.Oracle,
                        InitKeyType = InitKeyType.Attribute,//从特性读取主键和自增列信息
                        IsAutoCloseConnection = true,//开启自动释放模式和EF原理一样我就不多解释了
                                                     //InitKey默认SystemTable                  
                    });

                    //可注释
                    _dbBase.Aop.OnLogExecuting = (sql, pars) => //SQL执行中事件
                    {
                        Parallel.For(0, 1, e =>
                        {
                            string SqlLog = "";
                            foreach (string item in new string[] { GetParas(pars), "【SQL语句】：" + sql })
                            {
                                SqlLog = SqlLog + item;
                            }
                        });
                    };
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                    return null;
                }
                return _dbBase;
            }
        }

        private string GetParas(SugarParameter[] pars)
        {
            string key = "【SQL参数】：";
            foreach (var param in pars)
            {
                key += $"{param.ParameterName}:{param.Value}\n";
            }

            return key;
        }

        internal SqlSugarClient Db
        {
            get { return _db; }
        }

        public async Task<TEntity> QuerySingle(Expression<Func<TEntity, bool>> whereExpression)
        {
            return await _db.Queryable<TEntity>().WhereIF(whereExpression != null, whereExpression).SingleAsync();
        }

        public async Task<TEntity> QueryById(object objId)
        {
            return await _db.Queryable<TEntity>().In(objId).SingleAsync();
        }
        /// <summary>
        /// 功能描述:根据ID查询一条数据
        /// 
        /// </summary>
        /// <param name="objId">id（必须指定主键特性 [SugarColumn(IsPrimaryKey=true)]），如果是联合主键，请使用Where条件</param>
        /// <param name="blnUseCache">是否使用缓存</param>
        /// <returns>数据实体</returns>
        public async Task<TEntity> QueryById(object objId, bool blnUseCache = false)
        {
            return await _db.Queryable<TEntity>().WithCacheIF(blnUseCache).In(objId).SingleAsync();
        }

        /// <summary>
        /// 功能描述:根据ID查询数据
        /// 
        /// </summary>
        /// <param name="lstIds">id列表（必须指定主键特性 [SugarColumn(IsPrimaryKey=true)]），如果是联合主键，请使用Where条件</param>
        /// <returns>数据实体列表</returns>
        public async Task<List<TEntity>> QueryByIDs(object[] lstIds)
        {
            return await _db.Queryable<TEntity>().In(lstIds).ToListAsync();
        }

        /// <summary>
        /// 写入实体数据
        /// </summary>
        /// <param name="entity">博文实体类</param>
        /// <returns>影响行数</returns>
        public async Task<int> Add(TEntity entity)
        {
            try
            {
                //return await _db.Insertable(entity).ExecuteReturnIdentityAsync();
                return await _db.Insertable(entity).ExecuteCommandAsync();
            }
            catch (Exception ex)
            {
                return 0;
            }
        }

        public async Task<int> AddLog(TEntity entity)
        {
            try
            {
                var insert = _db.Insertable(entity);
                return await insert.ExecuteReturnIdentityAsync();
            }
            catch (Exception ex)
            {
                //LogHelper.Error("插入出錯：" + ex.Message);
                return 0;
            }
        }

        /// <summary>
        /// 批量插入实体(速度快)
        /// </summary>
        /// <param name="listEntity">实体集合</param>
        /// <returns>影响行数</returns>
        public async Task<int> Add(List<TEntity> listEntity)
        {
            return await _db.Insertable(listEntity.ToArray()).ExecuteCommandAsync();
        }

        /// <summary>
        /// 更新实体数据
        /// </summary>
        /// <param name="entity">博文实体类</param>
        /// <returns></returns>
        public async Task<bool> Update(TEntity entity)
        {
            try
            {
                ////这种方式会以主键为条件
                //var i = await Task.Run(() => _db.Updateable(entity).ExecuteCommand());
                //return i > 0;
                //这种方式会以主键为条件
                return await _db.Updateable(entity).ExecuteCommandHasChangeAsync();
            }
            catch (Exception ex)
            {
                return false;
            }
        }

        public async Task<bool> Update(TEntity entity, string strWhere)
        {
            //return await Task.Run(() => _db.Updateable(entity).Where(strWhere).ExecuteCommand() > 0);
            return await _db.Updateable(entity).Where(strWhere).ExecuteCommandHasChangeAsync();
        }

        public async Task<bool> Update(string strSql, SugarParameter[] parameters = null)
        {
            //return await Task.Run(() => _db.Ado.ExecuteCommand(strSql, parameters) > 0);
            return await _db.Ado.ExecuteCommandAsync(strSql, parameters) > 0;
        }

        public async Task<bool> Update(object operateAnonymousObjects)
        {
            return await _db.Updateable<TEntity>(operateAnonymousObjects).ExecuteCommandAsync() > 0;
        }

        public async Task<bool> Update(
          TEntity entity,
          List<string> lstColumns = null,
          List<string> lstIgnoreColumns = null,
          string strWhere = ""
            )
        {
            IUpdateable<TEntity> up = _db.Updateable(entity);
            if (lstIgnoreColumns != null && lstIgnoreColumns.Count > 0)
            {
                up = up.IgnoreColumns(lstIgnoreColumns.ToArray());
            }
            if (lstColumns != null && lstColumns.Count > 0)
            {
                up = up.UpdateColumns(lstColumns.ToArray());
            }
            if (!string.IsNullOrEmpty(strWhere))
            {
                up = up.Where(strWhere);
            }
            return await up.ExecuteCommandHasChangeAsync();
        }

        /// <summary>
        /// 根据实体删除一条数据
        /// </summary>
        /// <param name="entity">实体类</param>
        /// <returns></returns>
        public async Task<bool> Delete(TEntity entity)
        {
            //var i = await Task.Run(() => _db.Deleteable(entity).ExecuteCommand());
            //return i > 0;
            return await _db.Deleteable(entity).ExecuteCommandHasChangeAsync();
        }

        /// <summary>
        /// 根据表达式删除
        /// </summary>
        /// <param name="whereExpression"></param>
        /// <returns></returns>
        public async Task<bool> Delete(Expression<Func<TEntity, bool>> whereExpression)
        {
            return await _db.Deleteable<TEntity>().Where(whereExpression).ExecuteCommandHasChangeAsync();
        }

        /// <summary>
        /// 删除指定ID的数据
        /// </summary>
        /// <param name="id">主键ID</param>
        /// <returns></returns>
        public async Task<bool> DeleteById(object id)
        {
            //var i = await Task.Run(() => _db.Deleteable<TEntity>(id).ExecuteCommand());
            //return i > 0;
            return await _db.Deleteable<TEntity>(id).ExecuteCommandHasChangeAsync();
        }

        /// <summary>
        /// 删除指定ID集合的数据(批量删除)
        /// </summary>
        /// <param name="ids">主键ID集合</param>
        /// <returns></returns>
        public async Task<bool> DeleteByIds(object[] ids)
        {
            //var i = await Task.Run(() => _db.Deleteable<TEntity>().In(ids).ExecuteCommand());
            //return i > 0;
            return await _db.Deleteable<TEntity>().In(ids).ExecuteCommandHasChangeAsync();
        }



        /// <summary>
        /// 功能描述:查询所有数据
        /// 
        /// </summary>
        /// <returns>数据列表</returns>
        public async Task<List<TEntity>> Query()
        {
            return await _db.Queryable<TEntity>().ToListAsync();
        }

        /// <summary>
        /// 功能描述:查询数据列表
        /// 
        /// </summary>
        /// <param name="strWhere">条件</param>
        /// <returns>数据列表</returns>
        public async Task<List<TEntity>> Query(string strWhere)
        {
            //return await Task.Run(() => _db.Queryable<TEntity>().WhereIF(!string.IsNullOrEmpty(strWhere), strWhere).ToList());
            return await _db.Queryable<TEntity>().WhereIF(!string.IsNullOrEmpty(strWhere), strWhere).ToListAsync();
        }

        public List<TEntity> Query1(Expression<Func<TEntity, bool>> whereExpression)
        {
            try
            {
                return  _db.Queryable<TEntity>().WhereIF(whereExpression != null, whereExpression).ToList();
            }
            catch (Exception ex)
            {
                //LogRecordService.LogAdd(new Model.Models.Base_LogRecord(Model.Enums.LogType.查询记录, null, "查询失败：" + ex.Message, DateTime.Now));
                return null;
            }
        }

        /// <summary>
        /// 功能描述:查询数据列表
        /// 
        /// </summary>
        /// <param name="whereExpression">whereExpression</param>
        /// <returns>数据列表</returns>
        public async Task<List<TEntity>> Query(Expression<Func<TEntity, bool>> whereExpression)
        {
            try
            {
                return await _db.Queryable<TEntity>().WhereIF(whereExpression != null, whereExpression).ToListAsync();
            }
            catch (Exception ex)
            {
                //LogRecordService.LogAdd(new Model.Models.Base_LogRecord(Model.Enums.LogType.查询记录, null, "查询失败：" + ex.Message, DateTime.Now));
                return null;
            }
        }

        /// <summary>
        /// 功能描述:查询一个列表
        /// 
        /// </summary>
        /// <param name="whereExpression">条件表达式</param>
        /// <param name="strOrderByFileds">排序字段，如name asc,age desc</param>
        /// <returns>数据列表</returns>
        public async Task<List<TEntity>> Query(Expression<Func<TEntity, bool>> whereExpression, string strOrderByFileds)
        {
            //return await Task.Run(() => _db.Queryable<TEntity>().OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds).WhereIF(whereExpression != null, whereExpression).ToList());
            return await _db.Queryable<TEntity>().WhereIF(whereExpression != null, whereExpression).OrderByIF(strOrderByFileds != null, strOrderByFileds).ToListAsync();
        }
        /// <summary>
        /// 功能描述:查询一个列表
        /// </summary>
        /// <param name="whereExpression"></param>
        /// <param name="orderByExpression"></param>
        /// <param name="isAsc"></param>
        /// <returns></returns>
        public async Task<List<TEntity>> Query(Expression<Func<TEntity, bool>> whereExpression, Expression<Func<TEntity, object>> orderByExpression, bool isAsc = true)
        {
            //return await Task.Run(() => _db.Queryable<TEntity>().OrderByIF(orderByExpression != null, orderByExpression, isAsc ? OrderByType.Asc : OrderByType.Desc).WhereIF(whereExpression != null, whereExpression).ToList());
            try
            {
                return await _db.Queryable<TEntity>().OrderByIF(orderByExpression != null, orderByExpression, isAsc ? OrderByType.Asc : OrderByType.Desc).WhereIF(whereExpression != null, whereExpression).ToListAsync();
            }
            catch (Exception ex)
            {
                //LogHelper.Error(ex.Message);
                return null;
            }
        }

        /// <summary>
        /// 排序取第一条
        /// </summary>
        /// <param name="whereExpression"></param>
        /// <param name="orderByExpression"></param>
        /// <param name="isAsc"></param>
        /// <returns></returns>
        public async Task<TEntity> QueryFirst(Expression<Func<TEntity, bool>> whereExpression, Expression<Func<TEntity, object>> orderByExpression, bool isAsc = true)
        {
            try
            {
                TEntity info = await _db.Queryable<TEntity>().OrderByIF(orderByExpression != null, orderByExpression, isAsc ? OrderByType.Asc : OrderByType.Desc).WhereIF(whereExpression != null, whereExpression).FirstAsync();
                //if (info != null)
                //LogRecordService.LogAdd(new Model.Models.Base_LogRecord(Model.Enums.LogType.查询记录, "查询成功：" + JsonChange.ModeToJson(info), null, DateTime.Now));
                return info;
            }
            catch (Exception ex)
            {
                //LogRecordService.LogAdd(new Model.Models.Base_LogRecord(Model.Enums.LogType.查询记录, null, "查询失败：" + ex.Message, DateTime.Now));
                return null;
            }
        }

        /// <summary>
        /// 功能描述:查询一个列表
        /// 
        /// </summary>
        /// <param name="strWhere">条件</param>
        /// <param name="strOrderByFileds">排序字段，如name asc,age desc</param>
        /// <returns>数据列表</returns>
        public async Task<List<TEntity>> Query(string strWhere, string strOrderByFileds)
        {
            //return await Task.Run(() => _db.Queryable<TEntity>().OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds).WhereIF(!string.IsNullOrEmpty(strWhere), strWhere).ToList());
            return await _db.Queryable<TEntity>().OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds).WhereIF(!string.IsNullOrEmpty(strWhere), strWhere).ToListAsync();
        }


        /// <summary>
        /// 功能描述:查询前N条数据
        /// 
        /// </summary>
        /// <param name="whereExpression">条件表达式</param>
        /// <param name="intTop">前N条</param>
        /// <param name="strOrderByFileds">排序字段，如name asc,age desc</param>
        /// <returns>数据列表</returns>
        public async Task<List<TEntity>> Query(
            Expression<Func<TEntity, bool>> whereExpression,
            int intTop,
            string strOrderByFileds)
        {
            //return await Task.Run(() => _db.Queryable<TEntity>().OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds).WhereIF(whereExpression != null, whereExpression).Take(intTop).ToList());
            return await _db.Queryable<TEntity>().OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds).WhereIF(whereExpression != null, whereExpression).Take(intTop).ToListAsync();
        }

        /// <summary>
        /// 功能描述:查询前N条数据
        /// 
        /// </summary>
        /// <param name="strWhere">条件</param>
        /// <param name="intTop">前N条</param>
        /// <param name="strOrderByFileds">排序字段，如name asc,age desc</param>
        /// <returns>数据列表</returns>
        public async Task<List<TEntity>> Query(
            string strWhere,
            int intTop,
            string strOrderByFileds)
        {
            //return await Task.Run(() => _db.Queryable<TEntity>().OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds).WhereIF(!string.IsNullOrEmpty(strWhere), strWhere).Take(intTop).ToList());
            return await _db.Queryable<TEntity>().OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds).WhereIF(!string.IsNullOrEmpty(strWhere), strWhere).Take(intTop).ToListAsync();
        }



        /// <summary>
        /// 功能描述:分页查询
        /// 
        /// </summary>
        /// <param name="whereExpression">条件表达式</param>
        /// <param name="intPageIndex">页码（下标0）</param>
        /// <param name="intPageSize">页大小</param>
        /// <param name="intTotalCount">数据总量</param>
        /// <param name="strOrderByFileds">排序字段，如name asc,age desc</param>
        /// <returns>数据列表</returns>
        public async Task<List<TEntity>> Query(
            Expression<Func<TEntity, bool>> whereExpression,
            int intPageIndex,
            int intPageSize,
            string strOrderByFileds)
        {
            //return await Task.Run(() => _db.Queryable<TEntity>().OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds).WhereIF(whereExpression != null, whereExpression).ToPageList(intPageIndex, intPageSize));
            return await _db.Queryable<TEntity>().OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds).WhereIF(whereExpression != null, whereExpression).ToPageListAsync(intPageIndex, intPageSize);
        }

        /// <summary>
        /// 功能描述:分页查询
        /// 
        /// </summary>
        /// <param name="strWhere">条件</param>
        /// <param name="intPageIndex">页码（下标0）</param>
        /// <param name="intPageSize">页大小</param>
        /// <param name="intTotalCount">数据总量</param>
        /// <param name="strOrderByFileds">排序字段，如name asc,age desc</param>
        /// <returns>数据列表</returns>
        public async Task<List<TEntity>> Query(
          string strWhere,
          int intPageIndex,
          int intPageSize,

          string strOrderByFileds)
        {
            //return await Task.Run(() => _db.Queryable<TEntity>().OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds).WhereIF(!string.IsNullOrEmpty(strWhere), strWhere).ToPageList(intPageIndex, intPageSize));
            return await _db.Queryable<TEntity>().OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds).WhereIF(!string.IsNullOrEmpty(strWhere), strWhere).ToPageListAsync(intPageIndex, intPageSize);
        }



        /// <summary>
        /// 分页查询[使用版本，其他分页未测试]
        /// </summary>
        /// <param name="whereExpression">条件表达式</param>
        /// <param name="intPageIndex">页码（下标0）</param>
        /// <param name="intPageSize">页大小</param>
        /// <param name="strOrderByFileds">排序字段，如name asc,age desc</param>
        /// <returns></returns>
        public async Task<PageModel<TEntity>> QueryPage(Expression<Func<TEntity, bool>> whereExpression, int intPageIndex = 1, int intPageSize = 20, string strOrderByFileds = null)
        {

            RefAsync<int> totalCount = 0;
            var list = await _db.Queryable<TEntity>()
             .OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds)
             .WhereIF(whereExpression != null, whereExpression)
             .ToPageListAsync(intPageIndex, intPageSize, totalCount);

            int pageCount = (Math.Ceiling(totalCount.ObjToDecimal2() / intPageSize.ObjToDecimal2())).ObjToInt2();
            return new PageModel<TEntity>() { dataCount = totalCount, pageCount = pageCount, page = intPageIndex, PageSize = intPageSize, data = list };
        }


        /// <summary> 
        ///查询-多表查询
        /// </summary> 
        /// <typeparam name="T">实体1</typeparam> 
        /// <typeparam name="T2">实体2</typeparam> 
        /// <typeparam name="T3">实体3</typeparam>
        /// <typeparam name="T4">实体4</typeparam>
        /// <typeparam name="T5">实体5</typeparam>
        /// <typeparam name="TResult">返回对象</typeparam>
        /// <param name="joinExpression">关联表达式 (join1,join2) => new object[] {JoinType.Left,join1.UserNo==join2.UserNo}</param> 
        /// <param name="selectExpression">返回表达式 (s1, s2) => new { Id =s1.UserNo, Id1 = s2.UserNo}</param>
        /// <param name="whereLambda">查询表达式 (w1, w2) =>w1.UserNo == "")</param> 
        /// <returns>值</returns>
        public async Task<List<TResult>> QueryMuch<T, T2, T3, T4, T5, TResult>(
            Expression<Func<T, T2, T3, T4, T5, object[]>> joinExpression,
            Expression<Func<T, T2, T3, T4, T5, TResult>> selectExpression,
            Expression<Func<TResult, bool>> whereLambda = null) where T : class, new()
        {
            if (whereLambda == null)
            {
                return await _db.Queryable(joinExpression).Select(selectExpression).ToListAsync();
            }
            return await _db.Queryable(joinExpression).Select(selectExpression).MergeTable().Where(whereLambda).ToListAsync();
        }


        /// <summary> 
        ///查询-多表查询
        /// </summary> 
        /// <typeparam name="T">实体1</typeparam> 
        /// <typeparam name="T2">实体2</typeparam> 
        /// <typeparam name="T3">实体3</typeparam>
        /// <typeparam name="T4">实体4</typeparam>
        /// <typeparam name="TResult">返回对象</typeparam>
        /// <param name="joinExpression">关联表达式 (join1,join2) => new object[] {JoinType.Left,join1.UserNo==join2.UserNo}</param> 
        /// <param name="selectExpression">返回表达式 (s1, s2) => new { Id =s1.UserNo, Id1 = s2.UserNo}</param>
        /// <param name="whereLambda">查询表达式 (w1, w2) =>w1.UserNo == "")</param> 
        /// <returns>值</returns>
        public async Task<List<TResult>> QueryMuch<T, T2, T3, T4, TResult>(
            Expression<Func<T, T2, T3, T4, object[]>> joinExpression,
            Expression<Func<T, T2, T3, T4, TResult>> selectExpression,
            Expression<Func<TResult, bool>> whereLambda = null) where T : class, new()
        {
            if (whereLambda == null)
            {
                return await _db.Queryable(joinExpression).Select(selectExpression).ToListAsync();
            }
            return await _db.Queryable(joinExpression).Select(selectExpression).MergeTable().Where(whereLambda).ToListAsync();
        }


        /// <summary> 
        ///查询-多表查询
        /// </summary> 
        /// <typeparam name="T">实体1</typeparam> 
        /// <typeparam name="T2">实体2</typeparam> 
        /// <typeparam name="T3">实体3</typeparam>
        /// <typeparam name="TResult">返回对象</typeparam>
        /// <param name="joinExpression">关联表达式 (join1,join2) => new object[] {JoinType.Left,join1.UserNo==join2.UserNo}</param> 
        /// <param name="selectExpression">返回表达式 (s1, s2) => new { Id =s1.UserNo, Id1 = s2.UserNo}</param>
        /// <param name="whereLambda">查询表达式 (w1, w2) =>w1.UserNo == "")</param> 
        /// <returns>值</returns>
        public async Task<List<TResult>> QueryMuch<T, T2, T3, TResult>(
            Expression<Func<T, T2, T3, object[]>> joinExpression,
            Expression<Func<T, T2, T3, TResult>> selectExpression,
            Expression<Func<TResult, bool>> whereLambda = null) where T : class, new()
        {
            if (whereLambda == null)
            {
                return await _db.Queryable(joinExpression).Select(selectExpression).ToListAsync();
            }
            return await _db.Queryable(joinExpression).Select(selectExpression).MergeTable().Where(whereLambda).ToListAsync();
        }

        /// <summary> 
        ///查询-多表查询
        /// </summary> 
        /// <typeparam name="T">实体1</typeparam> 
        /// <typeparam name="T2">实体2</typeparam> 
        /// <typeparam name="TResult">返回对象</typeparam>
        /// <param name="joinExpression">关联表达式 (join1,join2) => new object[] {JoinType.Left,join1.UserNo==join2.UserNo}</param> 
        /// <param name="selectExpression">返回表达式 (s1, s2) => new { Id =s1.UserNo, Id1 = s2.UserNo}</param>
        /// <param name="whereLambda">查询表达式 (w1, w2) =>w1.UserNo == "")</param> 
        /// <returns>值</returns>
        public async Task<List<TResult>> QueryMuch<T, T2, TResult>(
            Expression<Func<T, T2, object[]>> joinExpression,
            Expression<Func<T, T2, TResult>> selectExpression,
            Expression<Func<TResult, bool>> whereLambda = null) where T : class, new()
        {
            if (whereLambda == null)
            {
                return await _db.Queryable(joinExpression).Select(selectExpression).ToListAsync();
            }
            return await _db.Queryable(joinExpression).Select(selectExpression).MergeTable().Where(whereLambda).ToListAsync();
        }

        #region 多表分页
        /// <summary> 
        ///查询-多表查询
        /// </summary> 
        /// <typeparam name="T">实体1</typeparam> 
        /// <typeparam name="T2">实体2</typeparam> 
        /// <typeparam name="T3">实体3</typeparam>
        /// <typeparam name="T4">实体4</typeparam>
        /// <typeparam name="T5">实体5</typeparam>
        /// <typeparam name="TResult">返回对象</typeparam>
        /// <param name="joinExpression">关联表达式 (join1,join2) => new object[] {JoinType.Left,join1.UserNo==join2.UserNo}</param> 
        /// <param name="selectExpression">返回表达式 (s1, s2) => new { Id =s1.UserNo, Id1 = s2.UserNo}</param>
        /// <param name="whereLambda">查询表达式 (w1, w2) =>w1.UserNo == "")</param> 
        /// <returns>值</returns>
        public async Task<PageModel<TResult>> QueryMuchPage<T, T2, T3, T4, T5, TResult>(
            Expression<Func<T, T2, T3, T4, T5, object[]>> joinExpression,
            Expression<Func<T, T2, T3, T4, T5, TResult>> selectExpression,
            Expression<Func<TResult, bool>> whereLambda = null, int intPageIndex = 1, int intPageSize = 20, string strOrderByFileds = null) where T : class, new()
        {
            RefAsync<int> totalCount = 0;
            var list = await _db.Queryable(joinExpression)
                .Select(selectExpression)
                .MergeTable()
                .WhereIF(whereLambda != null, whereLambda)
                .OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds)
                .ToPageListAsync(intPageIndex, intPageSize, totalCount);
            int pageCount = (Math.Ceiling(totalCount.ObjToDecimal2() / intPageSize.ObjToDecimal2())).ObjToInt2();
            return new PageModel<TResult>() { dataCount = totalCount, pageCount = pageCount, page = intPageIndex, PageSize = intPageSize, data = list };
        }


        /// <summary> 
        ///查询-多表查询
        /// </summary> 
        /// <typeparam name="T">实体1</typeparam> 
        /// <typeparam name="T2">实体2</typeparam> 
        /// <typeparam name="T3">实体3</typeparam>
        /// <typeparam name="T4">实体4</typeparam>
        /// <typeparam name="TResult">返回对象</typeparam>
        /// <param name="joinExpression">关联表达式 (join1,join2) => new object[] {JoinType.Left,join1.UserNo==join2.UserNo}</param> 
        /// <param name="selectExpression">返回表达式 (s1, s2) => new { Id =s1.UserNo, Id1 = s2.UserNo}</param>
        /// <param name="whereLambda">查询表达式 (w1, w2) =>w1.UserNo == "")</param> 
        /// <returns>值</returns>
        public async Task<PageModel<TResult>> QueryMuchPage<T, T2, T3, T4, TResult>(
            Expression<Func<T, T2, T3, T4, object[]>> joinExpression,
            Expression<Func<T, T2, T3, T4, TResult>> selectExpression,
            Expression<Func<TResult, bool>> whereLambda = null, int intPageIndex = 1, int intPageSize = 20, string strOrderByFileds = null) where T : class, new()
        {
            RefAsync<int> totalCount = 0;
            var list = await _db.Queryable(joinExpression)
                .Select(selectExpression)
                .MergeTable()
                .WhereIF(whereLambda != null, whereLambda)
                .OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds)
                .ToPageListAsync(intPageIndex, intPageSize, totalCount);
            int pageCount = (Math.Ceiling(totalCount.ObjToDecimal2() / intPageSize.ObjToDecimal2())).ObjToInt2();
            return new PageModel<TResult>() { dataCount = totalCount, pageCount = pageCount, page = intPageIndex, PageSize = intPageSize, data = list };
        }


        /// <summary> 
        ///查询-多表查询
        /// </summary> 
        /// <typeparam name="T">实体1</typeparam> 
        /// <typeparam name="T2">实体2</typeparam> 
        /// <typeparam name="T3">实体3</typeparam>
        /// <typeparam name="TResult">返回对象</typeparam>
        /// <param name="joinExpression">关联表达式 (join1,join2) => new object[] {JoinType.Left,join1.UserNo==join2.UserNo}</param> 
        /// <param name="selectExpression">返回表达式 (s1, s2) => new { Id =s1.UserNo, Id1 = s2.UserNo}</param>
        /// <param name="whereLambda">查询表达式 (w1, w2) =>w1.UserNo == "")</param> 
        /// <returns>值</returns>
        public async Task<PageModel<TResult>> QueryMuchPage<T, T2, T3, TResult>(
            Expression<Func<T, T2, T3, object[]>> joinExpression,
            Expression<Func<T, T2, T3, TResult>> selectExpression,
            Expression<Func<TResult, bool>> whereLambda = null, int intPageIndex = 1, int intPageSize = 20, string strOrderByFileds = null) where T : class, new()
        {
            RefAsync<int> totalCount = 0;
            var list = await _db.Queryable(joinExpression)
                .Select(selectExpression)
                .MergeTable()
                .WhereIF(whereLambda != null, whereLambda)
                .OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds)
                .ToPageListAsync(intPageIndex, intPageSize, totalCount);
            int pageCount = (Math.Ceiling(totalCount.ObjToDecimal2() / intPageSize.ObjToDecimal2())).ObjToInt2();
            return new PageModel<TResult>() { dataCount = totalCount, pageCount = pageCount, page = intPageIndex, PageSize = intPageSize, data = list };
        }

        /// <summary> 
        ///查询-多表查询
        /// </summary> 
        /// <typeparam name="T">实体1</typeparam> 
        /// <typeparam name="T2">实体2</typeparam> 
        /// <typeparam name="TResult">返回对象</typeparam>
        /// <param name="joinExpression">关联表达式 (join1,join2) => new object[] {JoinType.Left,join1.UserNo==join2.UserNo}</param> 
        /// <param name="selectExpression">返回表达式 (s1, s2) => new { Id =s1.UserNo, Id1 = s2.UserNo}</param>
        /// <param name="whereLambda">查询表达式 (w1, w2) =>w1.UserNo == "")</param> 
        /// <returns>值</returns>
        public async Task<PageModel<TResult>> QueryMuchPage<T, T2, TResult>(
            Expression<Func<T, T2, object[]>> joinExpression,
            Expression<Func<T, T2, TResult>> selectExpression,
            Expression<Func<TResult, bool>> whereLambda = null, int intPageIndex = 1, int intPageSize = 20, string strOrderByFileds = null) where T : class, new()
        {
            RefAsync<int> totalCount = 0;
            var list = await _db.Queryable(joinExpression)
                .Select(selectExpression)
                .MergeTable()
                .WhereIF(whereLambda != null, whereLambda)
                .OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds)
                .ToPageListAsync(intPageIndex, intPageSize, totalCount);
            int pageCount = (Math.Ceiling(totalCount.ObjToDecimal2() / intPageSize.ObjToDecimal2())).ObjToInt2();
            return new PageModel<TResult>() { dataCount = totalCount, pageCount = pageCount, page = intPageIndex, PageSize = intPageSize, data = list };
        }

        /// <summary> 
        ///查询-多表查询(测试)
        /// </summary> 
        /// <typeparam name="T">实体1</typeparam> 
        /// <typeparam name="T2">实体2</typeparam> 
        /// <typeparam name="TResult">返回对象</typeparam>
        /// <param name="joinExpression">关联表达式 (join1,join2) => new object[] {JoinType.Left,join1.UserNo==join2.UserNo}</param> 
        /// <param name="selectExpression">返回表达式 (s1, s2) => new { Id =s1.UserNo, Id1 = s2.UserNo}</param>
        /// <param name="whereLambda">查询表达式 (w1, w2) =>w1.UserNo == "")</param> 
        /// <returns>值</returns>
        public async Task<PageModel<TResult>> QueryMuchPage<T, T2, TResult>(
            Expression<Func<T, T2, object[]>> joinExpression,
            Expression<Func<T, T2, TResult>> selectExpression,
            Expression<Func<TResult, object>> sortExpression,
            Expression<Func<T, T2, bool>> whereLambda = null,
            int intPageIndex = 1, int intPageSize = 20, string strOrderByFileds = null) where T : class, new()
        {
            RefAsync<int> totalCount = 0;
            var list = await _db.Queryable(joinExpression)
                .WhereIF(whereLambda != null, whereLambda)
                .Select(selectExpression)
                .OrderByIF(!string.IsNullOrEmpty(strOrderByFileds), strOrderByFileds)
                .ToPageListAsync(intPageIndex, intPageSize, totalCount);
            int pageCount = (Math.Ceiling(totalCount.ObjToDecimal2() / intPageSize.ObjToDecimal2())).ObjToInt2();
            return new PageModel<TResult>() { dataCount = totalCount, pageCount = pageCount, page = intPageIndex, PageSize = intPageSize, data = list };
        }


        #endregion

        /// <summary>
        /// 存储过程
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="parameters"></param>
        /// <returns></returns>
        public async Task<List<T>> QueryByProc<T>(string proc, List<SugarParameter> parameters) where T : class, new()
        {
            //var nameP = new SugarParameter("@name", "张三");
            //var ageP = new SugarParameter("@age", null, true);//isOutput=true
            //var ddd = new List<SugarParameter>();
            return await _db.Ado.UseStoredProcedure().SqlQueryAsync<T>(proc, parameters);
        }

        public async Task<Tuple<List<T>, List<T2>>> QueryByProc<T, T2>(string proc, List<SugarParameter> parameters) where T : class, new()
        {
            return await _db.Ado.UseStoredProcedure().SqlQueryAsync<T, T2>(proc, parameters);
        }

        /// <summary>
        ///  sql语句
        /// </summary>
        public async Task<List<T>> QueryBySql<T>(string sql, List<SugarParameter> parameters) where T : class, new()
        {
            try
            {
                return await _db.Ado.SqlQueryAsync<T>(sql, parameters);
            }catch(Exception ex)
            {
                Console.WriteLine("QueryBySql语句执行异常:" + ex.Message);
                return new List<T>();
            }
        }

        /// <summary>
        /// 自定义查询
        /// </summary>
        /// <returns></returns>
        public List<TEntity> QueryList(Expression<Func<TEntity, bool>> whereExpression)
        {
            return _db.Queryable<TEntity>().WhereIF(whereExpression != null, whereExpression).ToList();
        }
    }
}