Sqlsugar 通用方法整理

发布：2023/3/22 22:35:53作者：管理员来源：本站浏览次数：1017

一、新建泛型辅助类SqlSugarHelper.cs,用于创建数据库连接

/// <summary>

/// SqlSugar的辅助方法

/// </summary>

/// <typeparam name="T"></typeparam>

public class SqlSugarHelper<T> where T : class, new()

{

//注意：不能写成静态的

public SqlSugarClient Db;//用来处理事务多表查询和复杂的操作

//public SimpleClient<T> CurrentDb { get { return new SimpleClient<T>(Db); } }//用来操作当前表的数据

public SqlSugarHelper()

{

Db = new SqlSugarClient(new ConnectionConfig()

{

ConnectionString = AppSettingFun.GetConnectionStr(),//数据库链接字符串

DbType = DbType.SqlServer,//指定数据库类型

IsAutoCloseConnection = true,//链接使用完后是否自动释放

InitKeyType = InitKeyType.Attribute//从实体特性中读取主键自增列信息

});

//调式代码用来打印SQL

Db.Aop.OnLogExecuting = (sql, pars) =>

{

Console.WriteLine(sql + "\r\n" +

Db.Utilities.SerializeObject(pars.ToDictionary(it => it.ParameterName, it => it.Value)));

Console.WriteLine();

};

}

二、整理数据库方法整理

public class SqlSugarFun<T> : SqlSugarHelper<T> where T : class, new()

{

public SqlSugarClient db;

public SqlSugarFun()

{

db = Db;

}

#region 保存(新增或更新)

/// <summary>

/// 保存(新增或更新)

/// </summary>

/// <param name="model">实体数据</param>

/// <returns></returns>

public async Task<bool> Save(T model)

{

return await Task.Run(() => db.Storageable(model).ExecuteCommandAsync()) > 0;

}

/// <summary>

/// 保存数据集(新增或更新)

/// </summary>

/// <param name="model">实体数据集</param>

/// <returns></returns>

public async Task<int> Save(List<T> model)

{

return await Task.Run(() => db.Storageable(model).ExecuteCommandAsync());

}

#endregion

#region 新增

/// <summary>

/// 插入数据

/// </summary>

/// <param name="model">实体数据</param>

/// <returns>是否成功</returns>

public async Task<bool> AddModel(T model)

{

return await Task.Run(() => db.Insertable(model).ExecuteCommandAsync()) > 0;

}

/// <summary>

///多数据插入

/// </summary>

/// <param name="lst">实体集合数据</param>

/// <returns>影响行数</returns>

public async Task<int> AddModel(List<T> lst)

{

return await Task.Run(() => db.Insertable(lst).ExecuteCommandAsync());

}

/// <summary>

/// 写入实体数据并返回最新实体

/// </summary>

/// <param name="model">实体数据</param>

/// <returns>最新实体</returns>

public async Task<T> AddbackEntity(T model)

{

return await Task.Run(() => db.Insertable(model).ExecuteReturnEntityAsync());

}

/// <summary>

/// 写入实体数据并返回自增列

/// </summary>

/// <param name="model">实体数据</param>

/// <returns>主键</returns>

public async Task<int> AddbackIdentity(T model)

{

return await Task.Run(() => db.Insertable(model).ExecuteReturnIdentityAsync());

}

/// <summary>

/// 单条插入返回雪花ID

/// </summary>

/// <param name="model">实体数据</param>

/// <returns>雪花ID</returns>

public async Task<long> AddbackSnowflakeid(T model)

{

return await Task.Run(() => db.Insertable(model).ExecuteReturnSnowflakeIdAsync());

}

/// <summary>

/// 多条插入批量返回,比自增好用

/// </summary>

/// <param name="lst">实体集合数据</param>

/// <returns>雪花ID集合</returns>

public async Task<List<long>> AddbackSnowflakeid(List<T> lst)

{

return await Task.Run(() => db.Insertable(lst).ExecuteReturnSnowflakeIdListAsync());

}

#endregion

#region 大数据新增

/// <summary>

/// 参数化内部分页插入（建议500行以下）

/// </summary>

/// <param name="model_lst">实体数据集合</param>

/// <returns>影响行数</returns>

public async Task<int> AddListParam(List<T> model_lst)

{

return await Task.Run(() => db.Insertable(model_lst).UseParameter().ExecuteCommandAsync());

}

/// <summary>

/// 大数据写入（特色功能：大数据处理上比所有框架都要快30%）

/// </summary>

/// <param name="model_lst">实体数据集合</param>

/// <returns>影响行数</returns>

public async Task<int> AddListMax(List<T> model_lst)

{

return await Task.Run(() => db.Fastest<T>().BulkCopyAsync(model_lst));

}

#endregion

#region 删除

/// <summary>

/// 根据主键删除

/// </summary>

/// <param name="id">主键</param>

/// <returns>是否成功</returns>

public async Task<bool> Delete(object id)

{

return await Task.Run(() => db.Deleteable<T>().In(id).ExecuteCommandHasChangeAsync());

}

/// <summary>

/// 根据主键数组批量删除

/// </summary>

/// <param name="ids">主键数组</param>

/// <returns>影响行数</returns>

public async Task<int> Delete(object[] ids)

{

return await Task.Run(() => db.Deleteable<T>().In(ids).ExecuteCommandAsync());

}

/// <summary>

/// 根据实体删除

/// </summary>

/// <param name="model">实体数据,有主键就行</param>

/// <returns>是否成功</returns>

public async Task<bool> Delete(T model)

{

return await Task.Run(() => db.Deleteable<T>().Where(model).ExecuteCommandHasChangeAsync());

}

/// <summary>

/// 批量删除实体

/// </summary>

/// <param name="lst">实体集合数据,有主键就行</param>

/// <returns>影响行数</returns>

public async Task<int> Delete(List<T> lst)

{

return await Task.Run(() => db.Deleteable<T>(lst).ExecuteCommandAsync());

}

/// <summary>

/// 根据条件删除

/// </summary>

/// <param name="where"></param>

/// <returns>是否成功</returns>

public async Task<bool> Delete(Expression<Func<T, bool>> where)

{

return await Task.Run(() => db.Deleteable<T>().Where(where).ExecuteCommandHasChangeAsync());

}

#endregion

#region 假删除

/// <summary>

/// 根据主键假删除, 要求实体属性中必须有isdelete或者isdeleted

/// </summary>

/// <param name="id">主键</param>

/// <returns>是否成功</returns>

public async Task<bool> DeleteLogic(object id)

{

return await Task.Run(() => db.Deleteable<T>().In(id).IsLogic().ExecuteCommandAsync()) > 0;

}

/// <summary>

/// 根据主键指定属性假删除

/// </summary>

/// <param name="id">主键</param>

/// <param name="name">属性名称</param>

/// <returns>是否成功</returns>

public async Task<bool> DeleteLogic(object id, string name)

{

return await Task.Run(() => db.Deleteable<T>().In(id).IsLogic().ExecuteCommandAsync(name)) > 0;

}

/// <summary>

/// 根据主键数组批量假删除

/// </summary>

/// <param name="ids">主键数组</param>

/// <returns>影响行数</returns>

public async Task<int> DeleteLogic(object[] ids)

{

return await Task.Run(() => db.Deleteable<T>().In(ids).IsLogic().ExecuteCommandAsync());

}

/// <summary>

/// 根据主键数组指定属性批量假删除

/// </summary>

/// <param name="ids">主键数组</param>

/// <returns>影响行数</returns>

public async Task<int> DeleteLogic(object[] ids, string name)

{

return await Task.Run(() => db.Deleteable<T>().In(ids).IsLogic().ExecuteCommandAsync(name));

}

/// <summary>

/// 根据条件指定属性假删除

/// </summary>

/// <param name="where">条件表达式</param>

/// <param name="name">删除字段名称</param>

/// <returns>影响行数</returns>

public async Task<int> DeleteLogic(Expression<Func<T, bool>> where, string delcol)

{

return await Task.Run(() => db.Deleteable<T>().Where(where).IsLogic().ExecuteCommandAsync(delcol));

}

/// <summary>

/// 根据主键删除并更新操作时间

/// </summary>

/// <param name="id">主键</param>

/// <param name="delcol">删除标记字段</param>

/// <param name="datecol">时间标记字段</param>

/// <returns>是否成功</returns>

public async Task<bool> DeleteLogic(object id, string delcol, string datecol)

{

return await Task.Run(() => db.Deleteable<T>().In(id).IsLogic().ExecuteCommand(delcol, DateTime.Now, datecol)) > 0;

}

/// <summary>

/// 根据主键批量删除并更新操作时间

/// </summary>

/// <param name="id">主键</param>

/// <param name="delcol">删除标记字段</param>

/// <param name="datecol">时间标记字段</param>

/// <returns>影响行数</returns>

public async Task<int> DeleteLogic(object[] ids, string delcol, string datecol)

{

return await Task.Run(() => db.Deleteable<T>().In(ids).IsLogic().ExecuteCommand(delcol, DateTime.Now, datecol));

}

#endregion

#region 更新

/// <summary>

/// 更新实体数据

/// </summary>

/// <param name="model">实体数据</param>

/// <returns>是否成功</returns>

public async Task<bool> Update(T model)

{

//这种方式会以主键为条件

return await Task.Run(() => db.Updateable(model).ExecuteCommandHasChange());

}

/// <summary>

/// 批量更新实体数据

/// 数据超过50条时启用大数据更新

/// </summary>

/// <param name="lst">实体集合</param>

/// <returns>影响行数</returns>

public async Task<int> Update(List<T> lst)

{

if (lst.Count > 50)

{

return await Task.Run(() => db.Fastest<T>().BulkUpdateAsync(lst));

}

//这种方式会以主键为条件

return await Task.Run(() => db.Updateable(lst).ExecuteCommandAsync());

}

/// <summary>

/// 按条件指定更新列

/// </summary>

/// <param name="newObject">t=>t.更新列==值表达式</param>

/// <param name="where">条件表达式</param>

/// <returns>影响行数</returns>

public async Task<int> Update(Expression<Func<T, bool>> newObject, Expression<Func<T, bool>> where)

{

return await Task.Run(() => db.Updateable<T>().SetColumns(newObject).Where(where).ExecuteCommandAsync());

}

/// <summary>

/// 按条件指定更新列

/// </summary>

/// <param name="newObject">t=> new T(){更新列=值} 表达式</param>

/// <param name="where">条件表达式</param>

/// <returns>影响行数</returns>

public async Task<int> Update(Expression<Func<T, T>> newObject, Expression<Func<T, bool>> where)

{

return await Task.Run(() => db.Updateable<T>().SetColumns(newObject).Where(where).ExecuteCommandAsync());

}

/// <summary>

/// 更新并启用启用验证

/// 需要有Timestamp字段呼应

/// </summary>

/// <param name="model"></param>

/// <returns></returns>

public async Task<bool> UpdateVer(T model)

{

return await Task.Run(() => db.Updateable(model).IsEnableUpdateVersionValidation().ExecuteCommandHasChange());

}

#endregion

#region 查询

#region 基础查询

/// <summary>

/// 获取所有数据

/// </summary>

/// <returns></returns>

public async Task<List<T>> GetAll()

{

return await Task.Run(() => db.Queryable<T>().ToList());

}

/// <summary>

/// 根据主键获取数据

/// </summary>

/// <param name="objId"></param>

/// <returns></returns>

public async Task<T> QueryByID(object objId)

{

return await Task.Run(() => db.Queryable<T>().InSingleAsync(objId));

}

/// <summary>

/// 根据条件查询数据

/// var exp= Expressionable.Create<Student>();

/// exp.OrIF(条件,it=>it.Id==1);//.OrIf 是条件成立才会拼接OR

/// exp.Or(it =>it.Name.Contains("jack"));//拼接OR

/// var list =db.Queryable<Student>().Where(exp.ToExpression()).ToList();

/// </summary>

/// <param name="expression"></param>

/// <returns></returns>

public async Task<T> QueryByWhere(Expression<Func<T, bool>> where)

{

return await Task.Run(() => db.Queryable<T>().Where(where).First());

}

/// <summary>

/// 查询是否存在

/// </summary>

/// <param name="where"></param>

/// <returns></returns>

public async Task<bool> Any(Expression<Func<T, bool>> where)

{

return await Task.Run(() => db.Queryable<T>().AnyAsync(where));

}

/// <summary>

/// 获取正序数据集合

/// </summary>

/// <param name="where"></param>

/// <returns></returns>

public async Task<List<T>> GetListByAsc(Expression<Func<T, bool>> where, Expression<Func<T, object>> order)

{

return await Task.Run(() => db.Queryable<T>().Where(where).OrderBy(order).ToList());

}

/// <summary>

/// 获取反序数据集合

/// </summary>

/// <param name="where"></param>

/// <returns></returns>

public async Task<List<T>> GetListByDesc(Expression<Func<T, bool>> where, Expression<Func<T, object>> order)

{

return await Task.Run(() => db.Queryable<T>().Where(where).OrderBy(order, OrderByType.Desc).ToList());

}

#endregion

#region 分页查询

/// <summary>

/// 分页正序查询

/// SqlSever2012分页把 ToPageList 换成 ToOffsetPage //offest分页

/// </summary>

/// <param name="where"></param>

/// <param name="order"></param>

/// <param name="pageindex"></param>

/// <param name="pagerow"></param>

/// <param name="count"></param>

/// <returns></returns>

public List<T> GetPageListByAsc(Expression<Func<T, bool>> where, Expression<Func<T, object>> order, int pageindex, int pagerow, ref int count)

{

return db.Queryable<T>().Where(where).OrderBy(order).ToPageList(pageindex, pagerow, ref count);

}

/// <summary>

/// 分页反序查询

/// </summary>

/// <param name="where"></param>

/// <param name="order"></param>

/// <param name="pageindex"></param>

/// <param name="pagerow"></param>

/// <param name="count"></param>

/// <returns></returns>

public List<T> GetPageListByDesc(Expression<Func<T, bool>> where, Expression<Func<T, object>> order, int pageindex, int pagerow, ref int count)

{

return db.Queryable<T>().Where(where).OrderBy(order, OrderByType.Desc).ToPageList(pageindex, pagerow, ref count);

}

/// <summary>

/// 分页正序查询

/// SqlSever2012分页把 ToPageList 换成 ToOffsetPage //offest分页

/// </summary>

/// <param name="where"></param>

/// <param name="order"></param>

/// <param name="select"></param>

/// <param name="pageindex"></param>

/// <param name="pagerow"></param>

/// <param name="count"></param>

/// <returns></returns>

public List<object> GetPageListByAsc(Expression<Func<T, bool>> where, Expression<Func<T, object>> order, Expression<Func<T, object>> select, int pageindex, int pagerow, ref int count)

{

return db.Queryable<T>().Where(where).OrderBy(order).Select(select).ToPageList(pageindex, pagerow, ref count);

}

/// <summary>

/// 分页反序查询

/// </summary>

/// <param name="where"></param>

/// <param name="order"></param>

/// <param name="select"></param>

/// <param name="pageindex"></param>

/// <param name="pagerow"></param>

/// <param name="count"></param>

/// <returns></returns>

public List<object> GetPageListByDesc(Expression<Func<T, bool>> where, Expression<Func<T, object>> order, Expression<Func<T, object>> select, int pageindex, int pagerow, ref int count)

{

return db.Queryable<T>().Where(where).OrderBy(order, OrderByType.Desc).Select(select).ToPageList(pageindex, pagerow, ref count);

}

/// <summary>

/// 获取数据总页数

/// </summary>

/// <param name="where"></param>

/// <param name="pageIndex"></param>

/// <param name="pageSize"></param>

/// <returns></returns>

public int GetPageTotle(int count, int pagerow)

{

int total = count;

if (total % pagerow > 0)

total = total / pagerow + 1;

else

total /= pagerow;

return total;

}

#endregion

#region 其它方法

/// <summary>

/// 获取数据库时间

/// </summary>

/// <returns></returns>

public async Task<DateTime> GetdbDate()

{

return await Task.Run(() => db.GetDate());

}

/// <summary>

/// 执行SQL查询

/// </summary>

/// <param name="sql"></param>

/// <returns></returns>

public async Task<dynamic> SqlQuery(string sql)

{

return await Task.Run(() => db.Ado.SqlQuery<dynamic>(sql));

}

/// <summary>

/// 执行sql语句（查询除外）

/// </summary>

/// <param name="sql"></param>

/// <returns></returns>

public async Task<bool> SqlExec(string sql)

{

return await Task.Run(() => db.Ado.ExecuteCommand(sql)) > 0;

}

/// <summary>

/// 获取新的雪花ID

/// </summary>

/// <returns></returns>

public async Task<long> GetSnowFlakeID()

{

return await Task.Run(() => SnowFlakeSingle.Instance.NextId());

}

/// <summary>

/// 初始化表

/// 表中数据全部清空，清除，自增初始化

/// </summary>

/// <returns>是否成功</returns>

public async Task<bool> Truncate()

{

return await Task.Run(() => db.DbMaintenance.TruncateTable<T>());

}

#endregion

}

三、调用实例

//数据库实体 Entity

public class OrderService : SqlSugarFun<Entity>

{

/// <summary>

/// 多删

/// </summary>

/// <param name="id"></param>

/// <param name="accountID"></param>

/// <param name="businessUserID"></param>

/// <returns></returns>

public async Task<string> DelOrder(object[] id)

{

var od = await Task.Run(() => GetListByAsc(t => id.Contains(t.FID), t => t.FID));

if (od == null)

{

return "找不到";

}

var b = await Task.Run(() => Delete(od)) > 0;

if (b)

return result.Success("操作成功");

return result.Error("操作失败");

}

/// <summary>

/// 数据库联查

/// </summary>

/// <param name="year"></param>

/// <param name="month"></param>

/// <param name="accountID"></param>

/// <param name="private_key"></param>

/// <returns></returns>

public async Task<Object> GroupPerformanceRanking(int year, int month, long accountID)

{

DateTime start = Convert.ToDateTime($@"{year}-{month}-01 00:00:00");

DateTime end = start.AddMonths(1);

var lst = await Task.Run(() => db.Queryable<tOrder, tGroup>((o, g) => new JoinQueryInfos(

JoinType.Left, o.FGroupID.Equals(g.FID)

))

.Where((o, g) => o.FAccounID.Equals(accountID) && o.FOrderDate > start && o.FOrderDate < end)

.Select((o, g) => new

{

g.FGroupName,

g.FGroupLogo,

o.FDollar,

o.FRMB,

}).MergeTable().GroupBy(g => new

{

g.FGroupName,

g.FGroupLogo

}).Select(t => new

{

t.FGroupName,

FDollar = SqlFunc.AggregateSum(t.FDollar),

FRMB = SqlFunc.AggregateSum(t.FRMB)

}).OrderBy(t => t.FRMB, OrderByType.Desc).ToList());

return result.Success(lst);

}

　使用NPOI解析Excel、SqlSugar 批量入库\更新、SqlBulkCopy入库

.NET 百万级大数据插入、更新，支持多种数据库　

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