发布：2023/3/22 22:51:16作者：管理员 来源：本站 浏览次数：612
public class SqlsugarHelper
{
static string ConnectionString = string.Empty;
static SqlSugar.DbType dbtype = SqlSugar.DbType.SqlServer;
SqlsugarHelper( SqlSugar.DbType dbtype)
{
if(dbtype== SqlSugar.DbType.SqlServer)
{
SqlsugarHelper.ConnectionString = ConnTools.init().GetSqlServerConn();
}else if(dbtype == SqlSugar.DbType.Oracle)
{
SqlsugarHelper.ConnectionString = ConnTools.init().GetOracleConn();
}
SqlsugarHelper.dbtype = dbtype;
}
private static SqlsugarHelper _Singleton = null;
private static readonly object Singleton_Lock = new object();
public static SqlsugarHelper Init(SqlSugar.DbType dbtype= SqlSugar.DbType.SqlServer)
{
if (_Singleton == null) //双if +lock
{
lock (Singleton_Lock)
{
if (_Singleton == null)
{
//创建对象
_Singleton = new SqlsugarHelper(dbtype);
}
}
}
return _Singleton;
}
/// <summary>
/// 获取数据库连接实体，禁止使用静态变量对接
/// </summary>
public static SqlSugarClient Instance
{
get
{
if (!string.IsNullOrWhiteSpace(ConnectionString))
{
SqlSugarClient db = new SqlSugarClient(new ConnectionConfig()
{
ConnectionString = ConnectionString,
DbType = dbtype,//设置数据库类型
IsAutoCloseConnection = true,//自动释放数据务，如果存在事务，在事务结束后释放
InitKeyType = InitKeyType.SystemTable,//从数据库系统表读取主键信息中（InitKeyType.Attribute从实体特性中读取主键自增列信息）
});
// 调试SQL，AOP ,日志
db.Aop.OnLogExecuted = (sql, pars) => //SQL执行完事件
{
#if DEBUG
//获取执行后的总毫秒数
double sqlExecutionTotalMilliseconds = db.Ado.SqlExecutionTime.TotalMilliseconds;
#endif
};
db.Aop.OnLogExecuting = (sql, pars) => //SQL执行前事件。可在这里查看生成的sql
{
#if DEBUG
string tempSQL = LookSQL(sql, pars);
#endif
};
db.Aop.OnError = (exp) =>
{
//exp.sql exp.parameters 可以拿到参数和错误Sql
StringBuilder sb_SugarParameterStr = new StringBuilder("###SugarParameter参数为:");
var parametres = exp.Parametres as SugarParameter[];
if (parametres != null)
{
sb_SugarParameterStr.Append(JsonConvert.SerializeObject(parametres));
}
StringBuilder sb_error = new StringBuilder();
sb_error.AppendLine("SqlSugarClient执行sql异常信息:" + exp.Message);
sb_error.AppendLine("###赋值后sql:" + LookSQL(exp.Sql, parametres));
sb_error.AppendLine("###带参数的sql:" + exp.Sql);
sb_error.AppendLine("###参数信息:" + sb_SugarParameterStr.ToString());
sb_error.AppendLine("###StackTrace信息:" + exp.StackTrace);
};
db.Aop.OnExecutingChangeSql = (sql, pars) => //SQL执行前 可以修改SQL
{
//判断update或delete方法是否有where条件。如果真的想删除所有数据，请where(p=>true)或where(p=>p.id>0)
if (sql.TrimStart().IndexOf("delete ", StringComparison.CurrentCultureIgnoreCase) == 0)
{
if (sql.IndexOf("where", StringComparison.CurrentCultureIgnoreCase) <= 0)
{
throw new Exception("delete删除方法需要有where条件！！");
}
}
else if (sql.TrimStart().IndexOf("update", StringComparison.CurrentCultureIgnoreCase) == 0)
{
if (sql.IndexOf("where", StringComparison.CurrentCultureIgnoreCase) <= 0 && sql.IndexOf("on", StringComparison.CurrentCultureIgnoreCase) <= 0)
{
throw new Exception("update更新方法需要有where条件！！");
}
}
return new KeyValuePair<string, SugarParameter[]>(sql, pars);
};
//db.Aop.OnDiffLogEvent = it =>// 数据库操作前和操作后的数据变化。
//{
// var editBeforeData = it.BeforeData;
// var editAfterData = it.AfterData;
// var sql = it.Sql;
// var parameter = it.Parameters;
// var data = it.BusinessData;
// var time = it.Time;
// var diffType = it.DiffType;//枚举值 insert 、update 和 delete 用来作业务区分
// //你可以在这里面写日志方法
//};
//db.Ado.CommandTimeOut //设置sql执行超时等待时间(毫秒单位)
//db.Ado.Connection.ConnectionTimeout //设置数据库连接等待时间(毫秒单位)
return db;
}
else
{
return null;
}
}
}
public static SqlSugarScope _Instance
{
get
{
if (!string.IsNullOrWhiteSpace(ConnectionString))
{
SqlSugarScope db = new SqlSugarScope(new ConnectionConfig()
{
ConnectionString = ConnectionString,
DbType = dbtype,//设置数据库类型
IsAutoCloseConnection = true,//自动释放数据务，如果存在事务，在事务结束后释放
InitKeyType = InitKeyType.SystemTable,//从数据库系统表读取主键信息中（InitKeyType.Attribute从实体特性中读取主键自增列信息）
});
// 调试SQL，AOP ,日志
db.Aop.OnLogExecuted = (sql, pars) => //SQL执行完事件
{
#if DEBUG
//获取执行后的总毫秒数
double sqlExecutionTotalMilliseconds = db.Ado.SqlExecutionTime.TotalMilliseconds;
#endif
};
db.Aop.OnLogExecuting = (sql, pars) => //SQL执行前事件。可在这里查看生成的sql
{
#if DEBUG
string tempSQL = LookSQL(sql, pars);
#endif
};
db.Aop.OnError = (exp) =>//执行SQL 错误事件
{
//exp.sql exp.parameters 可以拿到参数和错误Sql
StringBuilder sb_SugarParameterStr = new StringBuilder("###SugarParameter参数为:");
var parametres = exp.Parametres as SugarParameter[];
if (parametres != null)
{
sb_SugarParameterStr.Append(JsonConvert.SerializeObject(parametres));
}
StringBuilder sb_error = new StringBuilder();
sb_error.AppendLine("SqlSugarClient执行sql异常信息:" + exp.Message);
sb_error.AppendLine("###赋值后sql:" + LookSQL(exp.Sql, parametres));
sb_error.AppendLine("###带参数的sql:" + exp.Sql);
sb_error.AppendLine("###参数信息:" + sb_SugarParameterStr.ToString());
sb_error.AppendLine("###StackTrace信息:" + exp.StackTrace);
};
db.Aop.OnExecutingChangeSql = (sql, pars) => //SQL执行前 可以修改SQL
{
//判断update或delete方法是否有where条件。如果真的想删除所有数据，请where(p=>true)或where(p=>p.id>0)
if (sql.TrimStart().IndexOf("delete ", StringComparison.CurrentCultureIgnoreCase) == 0)
{
if (sql.IndexOf("where", StringComparison.CurrentCultureIgnoreCase) <= 0)
{
throw new Exception("delete删除方法需要有where条件！！");
}
}
else if (sql.TrimStart().IndexOf("update ", StringComparison.CurrentCultureIgnoreCase) == 0)
{
if (sql.IndexOf("where", StringComparison.CurrentCultureIgnoreCase) <= 0 && sql.IndexOf("on", StringComparison.CurrentCultureIgnoreCase) <= 0)
{
throw new Exception("update更新方法需要有where条件！！");
}
}
return new KeyValuePair<string, SugarParameter[]>(sql, pars);
};
//db.Aop.OnDiffLogEvent = it =>// 数据库操作前和操作后的数据变化。
//{
// var editBeforeData = it.BeforeData;
// var editAfterData = it.AfterData;
// var sql = it.Sql;
// var parameter = it.Parameters;
// var data = it.BusinessData;
// var time = it.Time;
// var diffType = it.DiffType;//枚举值 insert 、update 和 delete 用来作业务区分
// //你可以在这里面写日志方法
//};
//db.Ado.CommandTimeOut //设置sql执行超时等待时间(毫秒单位)
//db.Ado.Connection.ConnectionTimeout //设置数据库连接等待时间(毫秒单位)
return db;
}
else
{
return null;
}
}
}
/// <summary>
/// 查看赋值后的sql
/// </summary>
/// <param name="sql"></param>
/// <param name="pars">参数</param>
/// <returns></returns>
private static string LookSQL(string sql, SugarParameter[] pars)
{
if (pars == null || pars.Length == 0) return sql;
StringBuilder sb_sql = new StringBuilder(sql);
var tempOrderPars = pars.Where(p => p.Value != null).OrderByDescending(p => p.ParameterName.Length).ToList();//防止 @par1错误替换@par12
for (var index = 0; index < tempOrderPars.Count; index++)
{
sb_sql.Replace(tempOrderPars[index].ParameterName, "'" + tempOrderPars[index].Value.ToString() + "'");
}
return sb_sql.ToString();
}
#region 获取实体
/// <summary>
/// 获取一个实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id">主键</param>
/// <returns></returns>
public T GetModel<T>(object id)
{
return GetModel<T>(id, SqlsugarHelper.Instance);
}
/// <summary>
/// 返回数据库连接对象
/// </summary>
/// <returns></returns>
public SqlSugarClient GetClient()
{
return SqlsugarHelper.Instance;
}
/// <summary>
/// 返回数据库连接对象（保证线程安全避免偶发性错误）
/// </summary>
/// <returns></returns>
public SqlSugarScope _GetClient()
{
return SqlsugarHelper._Instance;
}
/// <summary>
/// 获取一个实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id">主键</param>
/// <param name="TableName">表名称</param>
/// <returns></returns>
public T GetModel<T>(string TableName, Expression<Func<T, bool>> expressionWhere)
{
return GetModel<T>(TableName, expressionWhere, SqlsugarHelper.Instance);
}
/// <summary>
/// 获取多个实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id">主键</param>
/// <returns></returns>
public List<T> GetModelList<T>()
{
return GetModelList<T>(SqlsugarHelper.Instance);
}
/// <summary>
/// 获取多个实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id">主键</param>
/// <param name="TableName">表名称</param>
/// <returns></returns>
public List<T> GetModelList<T>(string TableName)
{
return GetModelList<T>(SqlsugarHelper.Instance,TableName);
}
/// <summary>
/// 多条件查询
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="expression">条件</param>
/// <param name="TableName">表名称</param>
/// <returns></returns>
public List<T> Queryable<T>(Expression<Func<T, bool>> expression, string TableName)
{
return this.GetClient().Queryable<T>().AS(TableName).Where(expression).ToList();
}
/// <summary>
/// 执行原生sql语句
/// </summary>
/// <param name="sql">原生sql语句</param>
/// <param name="sugars">参数</param>
/// <returns></returns>
public DataTable GetDataTable(string sql, List<SugarParameter> sugars = null)
{
return GetDataTable(sql, SqlsugarHelper.Instance, sugars);
}
/// <summary>
/// 执行sql语句返回datatable
/// </summary>
/// <param name="sql">原生sql语句</param>
/// <param name="db">数据库连接</param>
/// <param name="sugars">参数</param>
/// <returns></returns>
public DataTable GetDataTable(string sql, SqlSugarClient db, List<SugarParameter> sugars = null)
{
return db.Ado.GetDataTable(sql, sugars);
}
/// <summary>
/// 获取一个实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id">主键</param>
/// <param name="db"></param>
/// <returns></returns>
private T GetModel<T>(object id, ISqlSugarClient db)
{
return db.Queryable<T>().InSingle(id);
}
/// <summary>
/// 获取一个实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id">主键</param>
/// <param name="db"></param>
/// <returns></returns>
public T GetModel<T>(string
TableName, Expression<Func<T, bool>> expressionWhere, ISqlSugarClient db)
{
return db.Queryable<T>().AS(TableName).Where(expressionWhere).First();
}
/// <summary>
/// 获取多个实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id">主键</param>
/// <param name="db"></param>
/// <returns></returns>
public List<T> GetModelList<T>(ISqlSugarClient db)
{
return db.Queryable<T>().ToList();
}
/// <summary>
/// 获取多个实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id">主键</param>
/// <param name="db"></param>
/// <returns></returns>
public List<T> GetModelList<T>(ISqlSugarClient db,string TableName)
{
return db.Queryable<T>().AS(TableName).ToList();
}
/// <summary>
/// 获取多个实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id">主键</param>
/// <param name="TableName">表名称</param>
/// <returns></returns>
public List<T> GetModelList<T>(Expression<Func<T, bool>> expressionWhere)
{
return GetModelList<T>(expressionWhere, SqlsugarHelper.Instance);
}
/// <summary>
/// 根据条件查询多条数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="expressionWhere">条件表达式</param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public List<T> GetModelList<T>(Expression<Func<T, bool>> expressionWhere, SqlSugarClient db)
{
return db.Queryable<T>().Where(expressionWhere).ToList();
}
/// <summary>
/// 获取多个实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id">主键</param>
/// <param name="TableName">表名称</param>
/// <returns></returns>
public List<T> GetModelList<T>(string TableName, Expression<Func<T, bool>> expressionWhere)
{
return GetModelList<T>(TableName, expressionWhere, SqlsugarHelper.Instance);
}
/// <summary>
/// 根据条件查询多条数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="TableName">表名称</param>
/// <param name="expressionWhere">条件表达式</param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public List<T> GetModelList<T>(string TableName, Expression<Func<T, bool>> expressionWhere, ISqlSugarClient db)
{
return db.Queryable<T>().AS(TableName).Where(expressionWhere).ToList();
}
#region 从缓存中获取一个实体
/// <summary>
/// 从缓存中获取一个实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id">主键</param>
/// <returns></returns>
public T GetModel_WithCache<T>(object id)
{
return GetModel_WithCache<T>(id, Instance);
}
/// <summary>
/// 从缓存中获取一个实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id">主键</param>
/// <param name="db"></param>
/// <returns></returns>
public T GetModel_WithCache<T>(object id, SqlSugarClient db)
{
return db.Queryable<T>().WithCache().InSingle(id);
}
#endregion
#endregion
#region 添加
/// <summary>
/// 添加实体（实体名称和表名称不一致是使用）
/// </summary>
/// <typeparam name="T">实体类型</typeparam>
/// <param name="t">实体</param>
/// <param name="TableName">表名称</param>
/// <returns>返回添加成功条数</returns>
public int InsertModel<T>(T t, string TableName) where T : class, new()
{
return InsertModel(t, TableName, SqlsugarHelper.Instance);
}
/// <summary>
/// 新增或修改实体
/// </summary>
/// <typeparam name="T">实体类型</typeparam>
/// <param name="t">实体</param>
/// <param name="TableName">表名</param>
/// <param name="columns">条件列</param>
/// <param name="UpdateColumns">指定更新列（互斥）</param>
/// <param name="ignoreColumns">忽略更新列（互斥）</param>
/// <returns></returns>
public int InsOrUpadteModel<T>(T t,string TableName, Expression<Func<T, object>> columns, Expression<Func<T, object>> UpdateColumns = null, Expression<Func<T, object>> ignoreColumns=null) where T : class, new()
{
return InsOrUpadteModel(t, TableName, columns, SqlsugarHelper.Instance, UpdateColumns,ignoreColumns);
}
/// <summary>
/// 新增或修改实体
/// </summary>
/// <typeparam name="T">实体类型</typeparam>
/// <param name="t">实体</param>
/// <returns></returns>
public int InsOrUpadteModel<T>(T t) where T : class, new()
{
return InsOrUpadteModel(t, SqlsugarHelper.Instance);
}
/// <summary>
/// 添加实体（实体名称和表名称不一致是使用）
/// </summary>
/// <typeparam name="T">实体类型</typeparam>
/// <param name="t">实体</param>
/// <param name="TableName">表名称</param>
/// <param name="db">数据库连接字符串</param>
/// <returns></returns>
public int InsertModel<T>(T t, string TableName, ISqlSugarClient db) where T : class, new()
{
return db.Insertable(t).AS(TableName).ExecuteCommand();
}
/// <summary>
/// 新增或修改实体
/// </summary>
/// <typeparam name="T">实体类型</typeparam>
/// <param name="t">实体</param>
/// <param name="TableName">表名称</param>
/// <param name="columns">设置主键</param>
/// <param name="db">连接对象</param>
/// <returns></returns>
public int InsOrUpadteModel<T>(T t,string TableName, Expression<Func<T, object>> columns, SqlSugarClient db) where T : class, new()
{
int count = 0;
var x = db.Storageable(t).As(TableName).WhereColumns(columns).ToStorage(); //将数据进行分组
count+= x.AsInsertable.ExecuteCommand(); //执行插入 （可以换成雪花ID和自增）
count+= x.AsUpdateable.IgnoreColumns().ExecuteCommand(); //执行更新
return count;
}
/// <summary>
/// 更新或新增数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="TableName">表名称</param>
/// <param name="columns">条件列</param>
/// <param name="UpdateColumns">指定更新列（互斥）</param>
/// <param name="ignoreColumns">忽略跟新列（互斥）</param>
/// <param name="db"></param>
/// <returns></returns>
private int InsOrUpadteModel<T>(T t, string TableName, Expression<Func<T, object>> columns, ISqlSugarClient db, Expression<Func<T, object>> UpdateColumns=null, Expression<Func<T, object>> ignoreColumns=null) where T : class, new()
{
int count = 0;
var x = db.Storageable(t).As(TableName).WhereColumns(columns).ToStorage(); //将数据进行分组
count += x.AsInsertable.ExecuteCommand();
if(UpdateColumns!=null && ignoreColumns==null)
{
count += x.AsUpdateable.UpdateColumns(UpdateColumns).ExecuteCommand(); //执行更新
}
else if(ignoreColumns!=null && UpdateColumns==null)
{
count += x.AsUpdateable.IgnoreColumns(ignoreColumns).ExecuteCommand(); //执行更新
}
else
{
count += x.AsUpdateable.ExecuteCommand(); //执行更新
}
return count;
}
/// <summary>
/// 新增或修改实体
/// </summary>
/// <typeparam name="T">实体类型</typeparam>
/// <param name="t">实体</param>
/// <param name="db">连接对象</param>
/// <returns></returns>
public int InsOrUpadteModel<T>(T t, SqlSugarClient db) where T : class, new()
{
int count = 0;
var x = db.Storageable(t).ToStorage(); //将数据进行分组
count += x.AsInsertable.ExecuteCommand(); //执行插入 （可以换成雪花ID和自增）
count += x.AsUpdateable.ExecuteCommand(); //执行更新
return count;
}
/// <summary>
///不保证线程安全(有则更新无则插入)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="TableName"></param>
/// <param name="WhereColumns"></param>
/// <returns></returns>
public int BulkCopyModel<T>(List<T> t, string TableName, Expression<Func<T, object>> WhereColumns) where T : class, new()
{
return BulkCopyModel(t, TableName, WhereColumns, SqlsugarHelper.Instance);
}
/// <summary>
/// 保证线程安全(有则更新无则插入)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="TableName"></param>
/// <param name="WhereColumns">分组依据列</param>
/// <param name="expressionWhere">xiu依据列</param>
/// <returns></returns>
public int _BulkCopyModel<T>(List<T> t, string TableName, Expression<Func<T, object>> WhereColumns) where T : class, new()
{
return BulkCopyModel(t, TableName, WhereColumns, SqlsugarHelper._Instance);
}
/// <summary>
/// 大量数据更新（如果有则更新没有则插入）
/// </summary>
/// <typeparam name="T">模型</typeparam>
/// <param name="t">数据</param>
/// <param name="TableName">表名</param>
/// <param name="db">数据库连接</param>
/// <returns></returns>
public int BulkCopyModel<T>(List<T> t, string TableName, Expression<Func<T, object>> WhereColumns, ISqlSugarClient db) where T : class, new()
{
var x = db.Storageable<T>(t).As(TableName).WhereColumns(WhereColumns).ToStorage();
int I = x.AsInsertable.ExecuteCommand(); //执行插入
int U = x.AsUpdateable.ExecuteCommand();
//int I = x.BulkCopy();//不存在插入
//int U = x.BulkUpdate();//存在更新
return I + U;
}
/// <summary>
/// 批量更新或插入（不保证线程安全）
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="TableName">表名称</param>
/// <param name="WhereColumns">条件列</param>
/// <param name="db"></param>
/// <returns></returns>
//public int BulkCopyModel<T>(List<T> t, string TableName, Expression<Func<T, object>> WhereColumns, SqlSugarClient db) where T : class, new()
//{
// var x = db.Storageable<T>(t).As(TableName).WhereColumns(WhereColumns).ToStorage();
// int I = x.BulkCopy();//不存在插入
// int U = x.BulkUpdate();//存在更新
// return I + U;
//}
/// <summary>
/// 批量数据插入（不检查数据是否已存在）
/// </summary>
/// <typeparam name="T">模型类型</typeparam>
/// <param name="t">数据对象</param>
/// <param name="TableName">表名称</param>
/// <returns>受影响行数</returns>
public int BulkInsertModel<T>(List<T> t, string TableName) where T : class, new()
{
return BulkInsertModel(t, TableName, SqlsugarHelper.Instance);
}
/// <summary>
/// 批量数据插入（不检查数据是否已存在）
/// </summary>
/// <typeparam name="T">模型</typeparam>
/// <param name="t"></param>
/// <param name="TableName">表名</param>
/// <param name="db"></param>
/// <returns></returns>
private int BulkInsertModel<T>(List<T> t, string TableName, SqlSugarClient db) where T : class, new()
{
return db.Fastest<T>().AS(TableName).BulkCopy(t);
}
/// <summary>
/// 添加实体数据，并返回主键值(主键为自增int类型id,实体需要设置主键特性(为null字段不更新,注意model有默认值的情况)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <returns></returns>
public int InsertModel<T>(T t) where T : class, new()
{
return InsertModel(t, SqlsugarHelper.Instance);
}
/// <summary>
/// 插入数据五百条数据内最快
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="TableName"></param>
/// <returns></returns>
public int InsertModels<T>(List<T> t, string TableName, Expression<Func<T, object>> ignoreColumns) where T : class, new()
{
return InsertModels(t, TableName, ignoreColumns, SqlsugarHelper.Instance);
}
/// <summary>
/// 添加实体数据，并返回主键值(主键为自增int类型id,实体需要设置主键特性)(为null字段不更新,注意model有默认值的情况)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public int InsertModel<T>(T t, SqlSugarClient db) where T : class, new()
{
//Where(true/*不插入null值的列*/,false/*不插入主键值*/)
return db.Insertable(t).
//IgnoreColumns(p=>p.Equals("id",StringComparison.InvariantCultureIgnoreCase)).
IgnoreColumns(true, false).ExecuteReturnIdentity();
}
/// <summary>
/// 添加实体数据，并返回主键值(主键为自增long类型id,实体需要设置主键特性(为null字段不更新,注意model有默认值的情况)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <returns></returns>
public long InsertModel_BigIdentity<T>(T t) where T : class, new()
{
return InsertModel_BigIdentity(t, SqlsugarHelper.Instance);
}
/// <summary>
/// 添加实体数据，并返回主键值(主键为自增long类型id,实体需要设置主键特性)(为null字段不更新,注意model有默认值的情况)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public long InsertModel_BigIdentity<T>(T t, SqlSugarClient db) where T : class, new()
{
//Where(true/*不插入null值的列*/,false/*不插入主键值*/)
return db.Insertable(t).
//IgnoreColumns(p=>p.Equals("id",StringComparison.InvariantCultureIgnoreCase)).
IgnoreColumns(true, false).ExecuteReturnBigIdentity();
}
/// <summary>
/// 批量插入五百条内速度最快
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="TableName"></param>
/// <param name="db"></param>
/// <returns></returns>
private int InsertModels<T>(List<T> t, string TableName, Expression<Func<T, object>> ignoreColumns, ISqlSugarClient db) where T : class, new()
{
return db.Insertable(t).AS(TableName).IgnoreColumns(ignoreColumns).UseParameter().ExecuteCommand();
}
#region 删除缓存
/// <summary>
/// 添加实体数据,删除缓存,并返回主键值(主键为自增int类型id,实体需要设置主键特性(为null字段不更新,注意model有默认值的情况)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <returns></returns>
public int InsertModel_RemoveDataCache<T>(T t) where T : class, new()
{
return InsertModel_RemoveDataCache(t, SqlsugarHelper.Instance);
}
/// <summary>
/// 添加实体数据,删除缓存,并返回主键值(主键为自增int类型id,实体需要设置主键特性)(为null字段不更新,注意model有默认值的情况)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public int InsertModel_RemoveDataCache<T>(T t, SqlSugarClient db) where T : class, new()
{
//Where(true/*不插入null值的列*/,false/*不插入主键值*/)
return db.Insertable(t).
//IgnoreColumns(p=>p.Equals("id",StringComparison.InvariantCultureIgnoreCase)).
IgnoreColumns(true, false).RemoveDataCache().ExecuteReturnIdentity();
}
/// <summary>
/// 添加实体数据，并返回主键值(主键为自增long类型id,实体需要设置主键特性(为null字段不更新,注意model有默认值的情况)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <returns></returns>
public long InsertModel_BigIdentity_RemoveDataCache<T>(T t) where T : class, new()
{
return InsertModel_BigIdentity_RemoveDataCache(t, SqlsugarHelper.Instance);
}
/// <summary>
/// 添加实体数据，并返回主键值(主键为自增long类型id,实体需要设置主键特性)(为null字段不更新,注意model有默认值的情况)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public long InsertModel_BigIdentity_RemoveDataCache<T>(T t, SqlSugarClient db) where T : class, new()
{
//Where(true/*不插入null值的列*/,false/*不插入主键值*/)
return db.Insertable(t).
//IgnoreColumns(p=>p.Equals("id",StringComparison.InvariantCultureIgnoreCase)).
IgnoreColumns(true, false).RemoveDataCache().ExecuteReturnBigIdentity();
}
#endregion
#endregion
#region 更新
/// <summary>
/// 根据主键更新实体(指定字段不更新,注意model有默认值的情况)，返回影响条数(实体字段要有主键特性)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="TableName">表名</param>
/// <param name="UpdateColumns">指定更新列</param>
/// <param name="ignoreColumns">忽略更新列</param>
/// <returns></returns>
public int UpdateModelByKey<T>(T t, string TableName, Expression<Func<T, object>> UpdateColumns = null, Expression<Func<T, object>> ignoreColumns = null) where T : class, new()
{
return UpdateModelByKey(t, TableName, SqlsugarHelper.Instance, ignoreColumns, UpdateColumns);
}
/// <summary>
/// 根据主键更新实体(为null字段不更新,注意model有默认值的情况)，返回影响条数(实体字段要有主键特性)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <returns></returns>
public int UpdateModel <T>(T t, string TableName) where T : class, new()
{
return UpdateModel(t, TableName, SqlsugarHelper.Instance);
}
/// <summary>
/// 根据主键更新实体，返回影响条数(实体字段要有主键特性)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="db">(事务的db对象)</param>
/// <param name="updateColumns">指定更新列(互斥)</param>
/// <param name="ignoreColumns">忽略更新列(互斥)</param>
/// <returns></returns>
public int UpdateModelByKey<T>(T t, string TableName, SqlSugarClient db, Expression<Func<T, object>> updateColumns = null, Expression<Func<T, object>> ignoreColumns = null) where T : class, new()
{
//字段null，不进行更新
if (updateColumns != null && ignoreColumns == null)
{
return db.Updateable(t).AS(TableName).UpdateColumns(ignoreColumns).ExecuteCommand();
}
else if(ignoreColumns!=null && updateColumns==null)
{
return db.Updateable(t).AS(TableName).IgnoreColumns(ignoreColumns).ExecuteCommand();
}
else
{
//字段null，不进行更新
return db.Updateable(t).AS(TableName).IgnoreColumns(ignoreAllNullColumns: true).ExecuteCommand();
}
}
/// <summary>
/// 根据主键更新实体，返回影响条数(实体字段要有主键特性)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public int UpdateModel<T>(T t, string TableName, SqlSugarClient db) where T : class, new()
{
//字段null，不进行更新
return db.Updateable(t).AS(TableName).ExecuteCommand();
}
/// <summary>
/// 根据条件表达式更新实体(为null字段不更新,注意model有默认值的情况)，返回影响条数
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="expressionWhere">条件表达式</param>
/// <returns></returns>
public int UpdateModelsIgnoreNull<T>(T t, Expression<Func<T, bool>> expressionWhere) where T : class, new()
{
return UpdateModelsIgnoreNull(t, expressionWhere, SqlsugarHelper.Instance);
}
/// <summary>
/// 根据条件表达式更新实体(为null字段不更新,注意model有默认值的情况)，返回影响条数
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="expressionWhere">条件表达式</param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public int UpdateModelsIgnoreNull<T>(T t, Expression<Func<T, bool>> expressionWhere, SqlSugarClient db) where T : class, new()
{
return db.Updateable(t).IgnoreColumns(ignoreAllNullColumns: true).Where(expressionWhere).ExecuteCommand();
}
/// <summary>
/// 根据条件表达式更新实体(指定要更新的列)，返回影响条数
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t">模型</param>
/// <param name="TableName">数据库中的表名称</param>
/// <param name="columns">需要更新的字段</param>
/// <param name="expressionWhere">条件表达式</param>
/// <returns></returns>
public int UpdateModels<T>(T t, string TableName, Expression<Func<T, object>> columns, Expression<Func<T, bool>> expressionWhere) where T : class, new()
{
return UpdateModels<T>(t, TableName, columns, expressionWhere, SqlsugarHelper.Instance);
}
/// <summary>
/// 根据条件表达式更新实体(指定要更新的列)，返回影响条数
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="TableName">数据库中的表名</param>
/// <param name="columns">需要更新的字段表达式</param>
/// <param name="expressionWhere">条件表达式</param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public int UpdateModels<T>(T t, string TableName, Expression<Func<T, object>> columns, Expression<Func<T, bool>> expressionWhere, SqlSugarClient db) where T : class, new()
{
return db.Updateable(t).AS(TableName).UpdateColumns(columns).Where(expressionWhere).ExecuteCommand();
}
/// <summary>
/// 动态更新
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="columns">写入要更新的字段</param>
/// <param name="expressionWhere">where条件表达式</param>
/// <returns></returns>
public int Update<T>(Expression<Func<T, T>> columns, Expression<Func<T, bool>> expressionWhere) where T : class, new()
{
return Update<T>(columns, expressionWhere, SqlsugarHelper.Instance);
/* 调用示例
Update<Entity.SysAdmin>(p => new Entity.SysAdmin { photo = photo, Password = newPwd }
,p => p.ID == sm.id && p.Password == oldPwd) > 0;
*/
}
/// <summary>
/// 动态更新
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="columns">要更新的字段</param>
/// <param name="expressionWhere">where条件表达式</param>
/// <param name="db"></param>
/// <returns></returns>
public int Update<T>(Expression<Func<T, T>> columns, Expression<Func<T, bool>> expressionWhere, SqlSugarClient db) where T : class, new()
{
return db.Updateable<T>().SetColumns(columns).
//IgnoreColumns(ignoreAllNullColumns: true).//不能加此方法，会有“CommandText 属性尚未初始化”异常
Where(expressionWhere).ExecuteCommand();
/* 调用示例
Update<Entity.SysAdmin>(p => new Entity.SysAdmin { photo = photo, Password = newPwd }
,p => p.ID == sm.id && p.Password == oldPwd ,db) > 0;
*/
}
/// <summary>
/// 有主键批量更新
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="TableName">表名称</param>
/// <param name="whereColumns">条件列</param>
/// <param name="updateColumns">更新列</param>
/// <returns></returns>
public int BulkUpdata<T>(List<T> t, string TableName, string[] whereColumns = null, string[] updateColumns = null) where T : class, new()
{
return BulkUpdata(t, TableName, SqlsugarHelper.Instance, whereColumns, updateColumns);
}
/// <summary>
/// 有主键批量更新
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="TableName">表名称</param>
/// <param name="db">数据库连接</param>
/// <param name="whereColumns">条件列</param>
/// <param name="updateColumns">更新列</param>
/// <returns></returns>
public int BulkUpdata<T>(List<T> t, string TableName, SqlSugarClient db, string[] whereColumns, string[] updateColumns) where T : class, new()
{
return db.Fastest<T>().AS(TableName).BulkUpdate(t, whereColumns, updateColumns);
}
#region 删除缓存
/// <summary>
/// 根据主键更新实体(为null字段不更新,注意model有默认值的情况)并删除缓存，返回影响条数(实体字段要有主键特性)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <returns></returns>
public int UpdateModelByKey_RemoveDataCache<T>(T t) where T : class, new()
{
return UpdateModelByKey_RemoveDataCache(t, SqlsugarHelper.Instance);
}
/// <summary>
/// 根据主键更新实体，返回影响条数(实体字段要有主键特性)并删除缓存，返回影响条数(实体字段要有主键特性)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public int UpdateModelByKey_RemoveDataCache<T>(T t, SqlSugarClient db) where T : class, new()
{
//字段null，不进行更新
return db.Updateable(t).IgnoreColumns(ignoreAllNullColumns: true).RemoveDataCache().ExecuteCommand();
}
/// <summary>
/// 根据条件表达式更新实体(指定要更新的列)并删除缓存，返回影响条数
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="columns"></param>
/// <param name="expressionWhere"></param>
/// <returns></returns>
public int UpdateModels_RemoveDataCache<T>(T t, Expression<Func<T, object>> columns, Expression<Func<T, bool>> expressionWhere) where T : class, new()
{
return UpdateModels_RemoveDataCache<T>(t, columns, expressionWhere, Instance);
}
/// <summary>
/// 根据条件表达式更新实体(指定要更新的列)并删除缓存，返回影响条数
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="columns"></param>
/// <param name="expressionWhere">条件表达式</param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public int UpdateModels_RemoveDataCache<T>(T t, Expression<Func<T, object>> columns, Expression<Func<T, bool>> expressionWhere, SqlSugarClient db) where T : class, new()
{
return db.Updateable(t).UpdateColumns(columns).Where(expressionWhere).RemoveDataCache().ExecuteCommand();
}
/// <summary>
/// 动态更新,并删除缓存
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="columns">写入要更新的字段</param>
/// <param name="expressionWhere">where条件表达式</param>
/// <returns></returns>
public int Update_RemoveDataCache<T>(Expression<Func<T, T>> columns, Expression<Func<T, bool>> expressionWhere) where T : class, new()
{
return Update_RemoveDataCache<T>(columns, expressionWhere, SqlsugarHelper.Instance);
/* 调用示例
Update<Entity.SysAdmin>(p => new Entity.SysAdmin { photo = photo, Password = newPwd }
,p => p.ID == sm.id && p.Password == oldPwd) > 0;
*/
}
/// <summary>
/// 动态更新,并删除缓存
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="columns">要更新的字段</param>
/// <param name="expressionWhere">where条件表达式</param>
/// <param name="db"></param>
/// <returns></returns>
public int Update_RemoveDataCache<T>(Expression<Func<T, T>> columns, Expression<Func<T, bool>> expressionWhere, SqlSugarClient db) where T : class, new()
{
return db.Updateable<T>().SetColumns(columns).
//IgnoreColumns(ignoreAllNullColumns: true).//不能加此方法，会有“CommandText 属性尚未初始化”异常
Where(expressionWhere).RemoveDataCache().ExecuteCommand();
/* 调用示例
Update<Entity.SysAdmin>(p => new Entity.SysAdmin { photo = photo, Password = newPwd }
,p => p.ID == sm.id && p.Password == oldPwd ,db) > 0;
*/
}
#endregion
#endregion
#region 删除方法
/// <summary>
/// 删除ids集合条件的字符串(高效率写法,注意防止注入攻击)
/// </summary>
/// <param name="ids">ids为字符串 "1,2,3"或"1" 形式</param>
/// <param name="key">主键字段</param>
/// <returns></returns>
public static bool DeleteByWhereSql_ids<T>(string ids, string key = "id") where T : class, new()
{
return DeleteByWhereSql_ids<T>(ids, SqlsugarHelper.Instance, key);
}
/// <summary>
/// 删除ids集合条件的字符串(高效率写法,注意防止注入攻击)
/// </summary>
/// <param name="ids">ids为字符串 "1,2,3"或"1" 形式</param>
/// <param name="db">(事务的db对象)</param>
/// <param name="key">主键字段</param>
/// <returns></returns>
public static bool DeleteByWhereSql_ids<T>(string ids, SqlSugarClient db, string key = "id") where T : class, new()
{
return db.Deleteable<T>().Where(string.Format(" {0} IN ({1})", key, ids)).ExecuteCommand() > 0;
}
/// <summary>
/// 删除ids集合条件的字符串
/// </summary>
/// <param name="ids">ids为字符串 "1,2,3"或"1" 形式 </param>
/// <returns></returns>
public static bool DeleteByIds<T>(string ids) where T : class, new()
{
return DeleteByIds<T>(ids, SqlsugarHelper.Instance);
}
/// <summary>
/// 删除ids集合条件的字符串
/// </summary>
/// <param name="ids">ids为字符串 "1,2,3"或"1" 形式 </param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public static bool DeleteByIds<T>(string ids, SqlSugarClient db) where T : class, new()
{
return db.Deleteable<T>(GetIntListByString(ids)).ExecuteCommand() > 0;
}
/// <summary>
/// 删除ids集合条件的字符串
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="ids">ids为字符串 "1,2,3"或"1" 形式</param>
/// <returns></returns>
public static bool DeleteByInt64_Ids<T>(string ids) where T : class, new()
{
return DeleteByInt64_Ids<T>(ids, SqlsugarHelper.Instance);
}
/// <summary>
/// 删除ids集合条件的字符串
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="ids">ids为字符串 "1,2,3"或"1" 形式</param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public static bool DeleteByInt64_Ids<T>(string ids, SqlSugarClient db) where T : class, new()
{
return db.Deleteable<T>(GetLongListByString(ids)).ExecuteCommand() > 0;
}
/// <summary>
/// 删除数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="TableName">表名称</param>
/// <param name="expression">条件表达式</param>
/// <returns></returns>
public int Deleteable<T>(string TableName, Expression<Func<T, bool>> expression) where T : class, new()
{
return Deleteable( TableName, expression, SqlsugarHelper.Instance);
}
/// <summary>
/// 根据条件表达式删除，返回影响条数
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="expression">表达式</param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public static int Deleteable<T>(string TableName,Expression<Func<T, bool>> expression, SqlSugarClient db) where T : class, new()
{
return db.Deleteable<T>().AS(TableName).Where(expression).ExecuteCommand();
}
#region 删除缓存
/// <summary>
/// 删除ids集合条件的字符串(高效率写法,注意防止注入攻击)，并删除缓存
/// </summary>
/// <param name="ids">ids为字符串 "1,2,3"或"1" 形式</param>
/// <param name="key">主键字段</param>
/// <returns></returns>
public static bool DeleteByWhereSql_ids_RemoveDataCache<T>(string ids, string key = "id") where T : class, new()
{
return DeleteByWhereSql_ids_RemoveDataCache<T>(ids, SqlsugarHelper.Instance, key);
}
/// <summary>
/// 删除ids集合条件的字符串(高效率写法,注意防止注入攻击)，并删除缓存
/// </summary>
/// <param name="ids">ids为字符串 "1,2,3"或"1" 形式</param>
/// <param name="db">(事务的db对象)</param>
/// <param name="key">主键字段</param>
/// <returns></returns>
public static bool DeleteByWhereSql_ids_RemoveDataCache<T>(string ids, SqlSugarClient db, string key = "id") where T : class, new()
{
return db.Deleteable<T>().Where(string.Format(" {0} IN ({1})", key, ids)).RemoveDataCache().ExecuteCommand() > 0;
}
/// <summary>
/// 删除ids集合条件的字符串，并删除缓存
/// </summary>
/// <param name="ids">ids为字符串 "1,2,3"或"1" 形式 </param>
/// <returns></returns>
public static bool DeleteByIds_RemoveDataCache<T>(string ids) where T : class, new()
{
return DeleteByIds_RemoveDataCache<T>(ids, Instance);
}
/// <summary>
/// 删除ids集合条件的字符串，并删除缓存
/// </summary>
/// <param name="ids">ids为字符串 "1,2,3"或"1" 形式 </param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public static bool DeleteByIds_RemoveDataCache<T>(string ids, SqlSugarClient db) where T : class, new()
{
return db.Deleteable<T>(GetIntListByString(ids)).RemoveDataCache().ExecuteCommand() > 0;
}
/// <summary>
/// 删除ids集合条件的字符串，并删除缓存
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="ids">ids为字符串 "1,2,3"或"1" 形式</param>
/// <returns></returns>
public static bool DeleteByInt64_Ids_RemoveDataCache<T>(string ids) where T : class, new()
{
return DeleteByInt64_Ids_RemoveDataCache<T>(ids, Instance);
}
/// <summary>
/// 删除ids集合条件的字符串，并删除缓存
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="ids">ids为字符串 "1,2,3"或"1" 形式</param>
/// <param name="db">(事务的db对象)</param>
/// <returns></returns>
public static bool DeleteByInt64_Ids_RemoveDataCache<T>(string ids, SqlSugarClient db) where T : class, new()
{
return db.Deleteable<T>(GetLongListByString(ids)).RemoveDataCache().ExecuteCommand() > 0;
}
#endregion
#endregion
#region ids转集合
/// <summary>
/// 将字符串转成int数组(, 号分割)
/// </summary>
/// <param name="ids"></param>
/// <returns></returns>
public static int[] GetIntListByString(string ids)
{
if (string.IsNullOrWhiteSpace(ids)) return null;
return Array.ConvertAll<string, int>(ids.Split(','), Int32.Parse);
}
/// <summary>
/// 将字符串转成long数组(, 号分割)
/// </summary>
/// <param name="ids"></param>
/// <returns></returns>
public static long[] GetLongListByString(string ids)
{
if (string.IsNullOrWhiteSpace(ids)) return null;
return Array.ConvertAll<string, long>(ids.Split(','), Int64.Parse);
}
#endregion
#region 扩展查询，不建议使用
/// <summary>
/// 简单查询数据
/// </summary>
/// <param name="tableName">表名</param>
/// <param name="columns">字段</param>
/// <param name="dicWhere">条件</param>
/// <returns></returns>
public DataTable GetDataTable(string tableName, string columns, Dictionary<string, object> dicWhere)
{
var db = SqlsugarHelper.Instance;
string sql = string.Format("select {0} from {1} ", columns, tableName);
List<SugarParameter> sqlParams = new List<SugarParameter>();
if (dicWhere != null)
{
string whereSql = dicFill_where(dicWhere, ref sqlParams);
return db.Ado.GetDataTable(sql + " where 1=1 " + whereSql, sqlParams.ToArray());
}
else
{
return db.Ado.GetDataTable(sql);
}
}
/// <summary>
/// 查询数据
/// </summary>
/// <param name="sqlStr">sql</param>
/// <param name="dicWhere">条件</param>
/// <param name="whereSql">where 条件,加and (注意sql注入攻击)</param>
/// <param name="parList">扩展参数</param>
/// <returns></returns>
public DataTable GetDataTableBySql(string sqlStr, Dictionary<string, object> dicWhere, string whereSql = "", List<SugarParameter> parList = null)
{
var db = SqlsugarHelper.Instance;
List<SugarParameter> sqlParams = new List<SugarParameter>();
string _whereSql = dicFill_where(dicWhere, ref sqlParams) + whereSql;
if (parList != null && parList.Count > 0)
{
sqlParams.AddRange(parList);
}
if (sqlParams.Count > 0)
{
return db.Ado.GetDataTable(string.Format(sqlStr + " {0} ", " where 1=1 " + _whereSql), sqlParams.ToArray());
}
else
{
return db.Ado.GetDataTable(string.IsNullOrEmpty(whereSql) ? sqlStr : sqlStr + whereSql);
}
}
/// <summary>
/// 查询数据
/// </summary>
/// <param name="sql">sql语句</param>
/// <param name="parameters">参数</param>
/// <param name="ConnectionString">连接字符串</param>
/// <param name="dbType">数据库类型</param>
/// <returns>Datatable</returns>
public DataTable Query(string sql, List<SugarParameter> parameters)
{
var dt = SqlsugarHelper.Instance.Ado.GetDataTable(sql, parameters);
return dt;
}
/// <summary>
/// 分页取数据
/// </summary>
/// <param name="tableName">前台子查询生成表名字</param>
/// <param name="dicWhere">where条件字段集合</param>
/// <param name="whereSql">where条件，加 and (注意sql注入)</param>
/// <param name="orderbyColumn">排序字段</param>
/// <param name="pageIndex">当前页码(从0开始)</param>
/// <param name="pageSize">一页显示多少条记录</param>
/// <param name="recordCount">返回总记录</param>
/// <param name="cte">cte的sql</param>
/// <returns></returns>
public DataTable GetDataPage(string tableName, Dictionary<string, object> dicWhere, string whereSql, string orderbyColumn, int pageIndex, int pageSize, out int recordCount, string cte = "")
{
var db = SqlsugarHelper.Instance;
List<SugarParameter> par = new List<SugarParameter>();
StringBuilder where = new StringBuilder();
where.Append(" where 1=1 ");
where.Append(dicFill_where(dicWhere, ref par) + whereSql);
string tableSql = tableName.Contains("select ") ?
string.Format(" ( " + tableName + " {0} ) pageTable ", where.ToString()) :
string.Format(" ( select * from " + tableName + " {0} ) pageTable ", where.ToString());
string sql = string.Format(@"{5}
select {0},row_number() over(order by {1}) rid into #tt from {2}
Order By {1} select * from #tt where rid> {3} and rid<={4} ;select count(1) from #tt ;drop table #tt ",
" * ", orderbyColumn, tableSql, pageSize * pageIndex, pageSize * (pageIndex + 1), cte);
DataSet ds = par.Count > 0 ? db.Ado.GetDataSetAll(sql, par.ToArray()) : db.Ado.GetDataSetAll(sql);
recordCount = Convert.ToInt32(ds.Tables[1].Rows[0][0].ToString());
return ds.Tables[0];
}
/// <summary>
/// 封装where参数sql语句
/// </summary>
/// <param name="dicWhere"></param>
/// <param name="par"></param>
/// <returns></returns>
private string dicFill_where(Dictionary<string, object> dicWhere, ref List<SugarParameter> par)
{
StringBuilder whereSql = new StringBuilder();
if (dicWhere != null && dicWhere.Count > 0)
{
string keyName;
foreach (KeyValuePair<string, object> keyDic in dicWhere)
{
keyName = getParameterName(keyDic.Key);
if (keyDic.Value.ToString().Contains("%") ||
keyDic.Value.ToString().Contains("_") ||
(keyDic.Value.ToString().Contains("[") && keyDic.Value.ToString().Contains("]"))
) //只要是含有 % _ [ ] 都是按照模糊查询
{
whereSql.AppendFormat(" and {0} like @{1} ", keyDic.Key, keyName);
}
else if (keyDic.Value.ToString().Contains("|"))
{
whereSql.AppendFormat(" Or {0} = @{1} ", keyDic.Key, keyName);
}
else
{
whereSql.AppendFormat(" and {0} = @{1} ", keyDic.Key, keyName);
}
par.Add(new SugarParameter(string.Format("@{0}", keyName), keyDic.Value));
}
}
return whereSql.ToString();
}
/// <summary>
/// 把字段名称 [dbo].[new].[title] ，取字段名title
/// </summary>
/// <param name="key">字段</param>
/// <returns></returns>
private string getParameterName(string key)
{
var temp = key.Split('.');
StringBuilder sb = new StringBuilder(temp[temp.Length - 1]);
sb.Replace("[", string.Empty).Replace("]", string.Empty);
sb.Replace("|", string.Empty);
return sb.ToString();
}
/// <summary>
/// 动态添加数据
/// </summary>
/// <param name="tableName">表名</param>
/// <param name="dic">参数和对应值集合</param>
/// <returns>新添加数据id</returns>
public int InsertDB(string tableName, Dictionary<string, object> dic)
{
StringBuilder columns = new StringBuilder();
StringBuilder columnParameters = new StringBuilder();
List<SugarParameter> sqlParams = new List<SugarParameter>();
if (dic.Count > 0)
{
foreach (KeyValuePair<string, object> keyDic in dic)
{
columns.AppendFormat(",{0}", keyDic.Key);
columnParameters.AppendFormat(",@{0}", getParameterName(keyDic.Key));
sqlParams.Add(new SugarParameter(string.Format("@{0}", getParameterName(keyDic.Key)), keyDic.Value));
}
}
else
{
return 0;
}
string sql =
string.Format("insert into {0}({1}) values ({2});select @@IDENTITY",
tableName, columns.ToString().Substring(1), columnParameters.ToString().Substring(1));
return SqlsugarHelper.Instance.Ado.ExecuteCommand(sql, sqlParams.ToArray());
}
/// <summary>
/// 动态更新数据
/// </summary>
/// <param name="tableName">表名</param>
/// <param name="dic">参数和对应值集合</param>
/// <param name="whereSql">where 条件(注意sql注入攻击)</param>
/// <returns>是否更新成功！</returns>
public bool UpdateDB(string tableName, Dictionary<string, object> dic, string whereSql)
{
StringBuilder columns = new StringBuilder();
List<SugarParameter> sqlParams = new List<SugarParameter>();
string keyName;
if (dic != null && dic.Count > 0)
{
foreach (KeyValuePair<string, object> keyDic in dic)
{
keyName = getParameterName(keyDic.Key);
columns.AppendFormat(",{0}=@{1}", keyDic.Key, keyName);
sqlParams.Add(new SugarParameter(string.Format("@{0}", keyName), keyDic.Value));
}
}
else
{
return false;
}
string sql =
string.Format("update {0} set {1} where {2}",
tableName, columns.ToString().Substring(1), whereSql);
return SqlsugarHelper.Instance.Ado.ExecuteCommand(sql, sqlParams) > 0;
}
/// <summary>
/// 动态更新数据
/// </summary>
/// <param name="tableName">表名</param>
/// <param name="dic">参数和对应值集合</param>
/// <param name="dicWhere">where条件参数和对应值集合</param>
/// <returns>是否更新成功！</returns>
public bool UpdateDB(string tableName, Dictionary<string, object> dic, Dictionary<string, object> dicWhere)
{
StringBuilder columns = new StringBuilder();
StringBuilder wheresSql = new StringBuilder();
List<SugarParameter> sqlParams = new List<SugarParameter>();
string keyName;
if (dic != null && dic.Count > 0)
{
foreach (KeyValuePair<string, object> keyDic in dic)
{
keyName = getParameterName(keyDic.Key);
columns.AppendFormat(",{0}=@{1}", keyDic.Key, keyName);
sqlParams.Add(new SugarParameter(string.Format("@{0}", keyName), keyDic.Value));
}
}
else
{
return false;
}
if (dicWhere != null && dicWhere.Count > 0)
{
foreach (KeyValuePair<string, object> keyDic in dicWhere)
{
keyName = getParameterName(keyDic.Key);
wheresSql.AppendFormat(" and {0}=@{1}", keyDic.Key, keyName);
sqlParams.Add(new SugarParameter(string.Format("@{0}", keyName), keyDic.Value));
}
}
else
{
return false;
}
string sql =
string.Format("update {0} set {1} where 1=1 {2}",
tableName, columns.ToString().Substring(1), wheresSql.ToString().Substring(1));
return SqlsugarHelper.Instance.Ado.ExecuteCommand(sql, sqlParams) > 0;
}
/// <summary>
/// 查询是否存在此记录
/// </summary>
/// <param name="tableName">表名</param>
/// <param name="dicWhere">条件</param>
/// <param name="whereSql">自定义条件</param>
/// <returns></returns>
public bool Exists(string tableName, Dictionary<string, object> dicWhere, string whereSql = "")
{
string sql = string.Format("select count(1) from {0} where 1=1 ", tableName);
List<SugarParameter> sqlParams = new List<SugarParameter>();
string whereSql2 = dicFill_where(dicWhere, ref sqlParams) + whereSql;
return SqlsugarHelper.Instance.Ado.GetInt(sql + whereSql2, sqlParams) > 0;
}
#endregion
}
#region 动态拼接lambda表达式
/// <summary>
/// Lambda表达式拼接扩展类
/// </summary>
public static class Utility
{
/// <summary>
/// Lambda表达式拼接
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="first"></param>
/// <param name="second"></param>
/// <param name="merge"></param>
/// <returns></returns>
public static Expression<T> Compose<T>(this Expression<T> first, Expression<T> second, Func<Expression, Expression, Expression> merge)
{
// 构建参数映射（从第二个参数到第一个参数）
var map = first.Parameters.Select((f, i) => new { f, s = second.Parameters[i] }).ToDictionary(p => p.s, p => p.f);
// 将第二个lambda表达式中的参数替换为第一个lambda表达式的参数
var secondBody = ParameterRebinder.ReplaceParameters(map, second.Body);
// 将lambda表达式体的组合应用于第一个表达式中的参数
return Expression.Lambda<T>(merge(first.Body, secondBody), first.Parameters);
}
/// <summary>
/// and扩展
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="first"></param>
/// <param name="second"></param>
/// <returns></returns>
public static Expression<Func<T, bool>> And<T>(this Expression<Func<T, bool>> first, Expression<Func<T, bool>> second)
{
return first.Compose(second, Expression.AndAlso);
}
/// <summary>
/// or扩展
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="first"></param>
/// <param name="second"></param>
/// <returns></returns>
public static Expression<Func<T, bool>> Or<T>(this Expression<Func<T, bool>> first, Expression<Func<T, bool>> second)
{
return first.Compose(second, Expression.OrElse);
}
}
/// <summary>
///
/// </summary>
public class ParameterRebinder : ExpressionVisitor
{
private readonly Dictionary<ParameterExpression, ParameterExpression> map;
/// <summary>
///
/// </summary>
/// <param name="map"></param>
public ParameterRebinder(Dictionary<ParameterExpression, ParameterExpression> map)
{
this.map = map ?? new Dictionary<ParameterExpression, ParameterExpression>();
}
/// <summary>
///
/// </summary>
/// <param name="map"></param>
/// <param name="exp"></param>
/// <returns></returns>
public static Expression ReplaceParameters(Dictionary<ParameterExpression, ParameterExpression> map, Expression exp)
{
return new ParameterRebinder(map).Visit(exp);
}
/// <summary>
///
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
protected override Expression VisitParameter(ParameterExpression p)
{
ParameterExpression replacement;
if (map.TryGetValue(p, out replacement))
{
p = replacement;
}
return base.VisitParameter(p);
}
}
#endregion
