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using Dapper;
using MySqlConnector;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.IO;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;
using VOL.Core.Const;
using VOL.Core.DBManager;
using VOL.Core.Enums;
using VOL.Core.Extensions;
using VOL.Core.Utilities;
namespace VOL.Core.Dapper
{
public class SqlDapper : ISqlDapper
{
private string _connectionString;
private int? commandTimeout = null;
private DbCurrentType _dbCurrentType;
public SqlDapper()
{
_connectionString = DBServerProvider.GetConnectionString();
}
public SqlDapper(string connKeyName, DbCurrentType dbCurrentType)
{
_dbCurrentType = dbCurrentType;
_connectionString = DBServerProvider.GetConnectionString(connKeyName);
}
public SqlDapper(string connKeyName)
{
_connectionString = DBServerProvider.GetConnectionString(connKeyName);
}
private bool _transaction { get; set; }
private IDbConnection _transactionConnection = null;
/// <summary>
/// 超时时间(秒)
/// </summary>
/// <param name="timeout"></param>
/// <returns></returns>
public ISqlDapper SetTimout(int timeout)
{
this.commandTimeout = timeout;
return this;
}
private T Execute<T>(Func<IDbConnection, IDbTransaction, T> func, bool beginTransaction = false)
{
if (_transaction)
{
return func(_transactionConnection, dbTransaction);
}
if (beginTransaction)
{
return ExecuteTransaction(func);
}
using (var connection = DBServerProvider.GetDbConnection(_connectionString, _dbCurrentType))
{
return func(connection, dbTransaction);
}
}
private T ExecuteTransaction<T>(Func<IDbConnection, IDbTransaction, T> func)
{
using (_transactionConnection = DBServerProvider.GetDbConnection(_connectionString, _dbCurrentType))
{
try
{
_transactionConnection.Open();
dbTransaction = _transactionConnection.BeginTransaction();
T reslutT = func(_transactionConnection, dbTransaction);
dbTransaction.Commit();
return reslutT;
}
catch (Exception ex)
{
dbTransaction?.Rollback();
throw ex;
}
finally
{
dbTransaction?.Dispose();
}
}
}
private async Task<T> ExecuteAsync<T>(Func<IDbConnection, IDbTransaction, Task<T>> funcAsync, bool beginTransaction = false)
{
if (_transaction)
{
return await funcAsync(_transactionConnection, dbTransaction);
}
if (beginTransaction)
{
return await ExecuteTransactionAsync(funcAsync);
}
using (var connection = DBServerProvider.GetDbConnection(_connectionString))
{
T reslutT = await funcAsync(connection, dbTransaction);
if (!_transaction && dbTransaction != null)
{
dbTransaction.Commit();
}
return reslutT;
}
}
private async Task<T> ExecuteTransactionAsync<T>(Func<IDbConnection, IDbTransaction, Task<T>> funcAsync)
{
using (var connection = DBServerProvider.GetDbConnection(_connectionString))
{
try
{
connection.Open();
dbTransaction = connection.BeginTransaction();
T reslutT = await funcAsync(connection, dbTransaction);
if (!_transaction && dbTransaction != null)
{
dbTransaction.Commit();
}
return reslutT;
}
catch (Exception ex)
{
dbTransaction?.Rollback();
throw ex;
}
}
}
/// <summary>
/// 2020.06.15增加Dapper事务处理
/// <param name="action"></param>
/// <param name="error"></param>
public void BeginTransaction(Func<ISqlDapper, bool> action, Action<Exception> error)
{
_transaction = true;
using (var connection = DBServerProvider.GetDbConnection(_connectionString, _dbCurrentType))
{
try
{
_transactionConnection = connection;
_transactionConnection.Open();
dbTransaction = _transactionConnection.BeginTransaction();
bool result = action(this);
if (result)
{
dbTransaction?.Commit();
}
else
{
dbTransaction?.Rollback();
}
}
catch (Exception ex)
{
dbTransaction?.Rollback();
error(ex);
}
finally
{
_transaction = false;
dbTransaction?.Dispose();
}
}
}
/// <summary>
/// var p = new object();
// p.Add("@a", 11);
//p.Add("@b", dbType: DbType.Int32, direction: ParameterDirection.Output);
//p.Add("@c", dbType: DbType.Int32, direction: ParameterDirection.ReturnValue);
// /// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="cmd"></param>
/// <param name="param"></param>
/// <param name="commandType"></param>
/// <returns></returns>
public List<T> QueryList<T>(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute((conn, dbTransaction) =>
{
return conn.Query<T>(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout).ToList();
}, beginTransaction);
}
public async Task<IEnumerable<T>> QueryListAsync<T>(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return await ExecuteAsync(async (conn, dbTransaction) =>
{
return await conn.QueryAsync<T>(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout);
}, beginTransaction);
}
public async Task<T> QueryFirstAsync<T>(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false) where T : class
{
return await ExecuteAsync(async (conn, dbTransaction) =>
{
return await conn.QueryFirstOrDefaultAsync<T>(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout);
}, beginTransaction);
}
public T QueryFirst<T>(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false) where T : class
{
return Execute((conn, dbTransaction) =>
{
return conn.QueryFirstOrDefault<T>(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout);
}, beginTransaction);
}
public async Task<dynamic> QueryDynamicFirstAsync(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return await ExecuteAsync(async (conn, dbTransaction) =>
{
return await conn.QueryFirstOrDefaultAsync(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout);
}, beginTransaction);
}
public dynamic QueryDynamicFirst(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute((conn, dbTransaction) =>
{
return conn.QueryFirstOrDefault(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout);
}, beginTransaction);
}
public async Task<dynamic> QueryDynamicListAsync(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return await ExecuteAsync(async (conn, dbTransaction) =>
{
return await conn.QueryAsync(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout);
}, beginTransaction);
}
public List<dynamic> QueryDynamicList(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute((conn, dbTransaction) =>
{
return conn.Query(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout).ToList();
}, beginTransaction);
}
public async Task<object> ExecuteScalarAsync(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return await ExecuteAsync(async (conn, dbTransaction) =>
{
return await conn.ExecuteScalarAsync(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout);
}, beginTransaction);
}
public object ExecuteScalar(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute((conn, dbTransaction) =>
{
return conn.ExecuteScalar(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout);
}, beginTransaction);
}
public async Task<int> ExcuteNonQueryAsync(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return await ExecuteAsync(async (conn, dbTransaction) =>
{
return await conn.ExecuteAsync(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout);
}, beginTransaction);
}
public int ExcuteNonQuery(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute<int>((conn, dbTransaction) =>
{
return conn.Execute(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout);
}, beginTransaction);
}
public IDataReader ExecuteReader(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute<IDataReader>((conn, dbTransaction) =>
{
return conn.ExecuteReader(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout);
}, beginTransaction);
}
public SqlMapper.GridReader QueryMultiple(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute((conn, dbTransaction) =>
{
return conn.QueryMultiple(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout);
}, beginTransaction);
}
public async Task<(IEnumerable<T1>, IEnumerable<T2>)> QueryMultipleAsync<T1, T2>(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return await ExecuteAsync(async (conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = await conn.QueryMultipleAsync(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (await reader.ReadAsync<T1>(), await reader.ReadAsync<T2>());
}
}, beginTransaction);
}
/// <summary>
/// 获取output值 param.Get<int>("@b");
/// </summary>
/// <typeparam name="T1"></typeparam>
/// <param name="cmd"></param>
/// <param name="param"></param>
/// <param name="commandType"></param>
/// <param name="dbTransaction"></param>
/// <returns></returns>
public (List<T1>, List<T2>) QueryMultiple<T1, T2>(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute((conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = conn.QueryMultiple(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (reader.Read<T1>().ToList(), reader.Read<T2>().ToList());
}
}, beginTransaction);
}
public async Task<(IEnumerable<dynamic>, IEnumerable<dynamic>)> QueryDynamicMultipleAsync(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return await ExecuteAsync(async (conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = await conn.QueryMultipleAsync(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (await reader.ReadAsync(), await reader.ReadAsync());
}
}, beginTransaction);
}
public (List<dynamic>, List<dynamic>) QueryDynamicMultiple(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute((conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = conn.QueryMultiple(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (reader.Read().ToList(), reader.Read().ToList());
}
}, beginTransaction);
}
public async Task<(IEnumerable<T1>, IEnumerable<T2>, IEnumerable<T3>)> QueryMultipleAsync<T1, T2, T3>(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return await ExecuteAsync(async (conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = await conn.QueryMultipleAsync(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (await reader.ReadAsync<T1>(), await reader.ReadAsync<T2>(), await reader.ReadAsync<T3>());
}
}, beginTransaction);
}
public (List<T1>, List<T2>, List<T3>) QueryMultiple<T1, T2, T3>(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute((conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = conn.QueryMultiple(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (reader.Read<T1>().ToList(), reader.Read<T2>().ToList(), reader.Read<T3>().ToList());
}
}, beginTransaction);
}
public async Task<(IEnumerable<dynamic>, IEnumerable<dynamic>)> QueryDynamicMultipleAsync2(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return await ExecuteAsync(async (conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = await conn.QueryMultipleAsync(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (
await reader.ReadAsync<dynamic>(),
await reader.ReadAsync<dynamic>()
);
}
}, beginTransaction);
}
public (List<dynamic>, List<dynamic>) QueryDynamicMultiple2(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute((conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = conn.QueryMultiple(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (
reader.Read<dynamic>().ToList(),
reader.Read<dynamic>().ToList()
);
}
}, beginTransaction);
}
public async Task<(IEnumerable<dynamic>, IEnumerable<dynamic>, IEnumerable<dynamic>)> QueryDynamicMultipleAsync3(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return await ExecuteAsync(async (conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = await conn.QueryMultipleAsync(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (
await reader.ReadAsync<dynamic>(),
await reader.ReadAsync<dynamic>(),
await reader.ReadAsync<dynamic>()
);
}
}, beginTransaction);
}
public (List<dynamic>, List<dynamic>, List<dynamic>) QueryDynamicMultiple3(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute((conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = conn.QueryMultiple(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (reader.Read<dynamic>().ToList(),
reader.Read<dynamic>().ToList(),
reader.Read<dynamic>().ToList()
);
}
}, beginTransaction);
}
public async Task<(IEnumerable<dynamic>, IEnumerable<dynamic>, IEnumerable<dynamic>, IEnumerable<dynamic>, IEnumerable<dynamic>)> QueryDynamicMultipleAsync5(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return await ExecuteAsync(async (conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = await conn.QueryMultipleAsync(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (
await reader.ReadAsync<dynamic>(),
await reader.ReadAsync<dynamic>(),
await reader.ReadAsync<dynamic>(),
await reader.ReadAsync<dynamic>(),
await reader.ReadAsync<dynamic>()
);
}
}, beginTransaction);
}
public (List<dynamic>, List<dynamic>, List<dynamic>, List<dynamic>, List<dynamic>) QueryDynamicMultiple5(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute((conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = conn.QueryMultiple(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (reader.Read<dynamic>().ToList(),
reader.Read<dynamic>().ToList(),
reader.Read<dynamic>().ToList(),
reader.Read<dynamic>().ToList(),
reader.Read<dynamic>().ToList()
);
}
}, beginTransaction);
}
public async Task<(IEnumerable<T1>, IEnumerable<T2>, IEnumerable<T3>, IEnumerable<T4>)> QueryMultipleAsync<T1, T2, T3, T4>(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return await ExecuteAsync(async (conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = await conn.QueryMultipleAsync(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (await reader.ReadAsync<T1>(),
await reader.ReadAsync<T2>(),
await reader.ReadAsync<T3>(),
await reader.ReadAsync<T4>()
);
}
}, beginTransaction);
}
public (List<T1>, List<T2>, List<T3>, List<T4>) QueryMultiple<T1, T2, T3, T4>(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute((conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = conn.QueryMultiple(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (reader.Read<T1>().ToList(),
reader.Read<T2>().ToList(),
reader.Read<T3>().ToList(),
reader.Read<T4>().ToList()
);
}
}, beginTransaction);
}
public async Task<(IEnumerable<T1>, IEnumerable<T2>, IEnumerable<T3>, IEnumerable<T4>, IEnumerable<T5>)> QueryMultipleAsync<T1, T2, T3, T4, T5>(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return await ExecuteAsync(async (conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = await conn.QueryMultipleAsync(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (await reader.ReadAsync<T1>(),
await reader.ReadAsync<T2>(),
await reader.ReadAsync<T3>(),
await reader.ReadAsync<T4>(),
await reader.ReadAsync<T5>()
);
}
}, beginTransaction);
}
public (List<T1>, List<T2>, List<T3>, List<T4>, List<T5>) QueryMultiple<T1, T2, T3, T4, T5>(string cmd, object param, CommandType? commandType = null, bool beginTransaction = false)
{
return Execute((conn, dbTransaction) =>
{
using (SqlMapper.GridReader reader = conn.QueryMultiple(cmd, param, dbTransaction, commandType: commandType ?? CommandType.Text, commandTimeout: commandTimeout))
{
return (reader.Read<T1>().ToList(),
reader.Read<T2>().ToList(),
reader.Read<T3>().ToList(),
reader.Read<T4>().ToList(),
reader.Read<T5>().ToList()
);
}
}, beginTransaction);
}
IDbTransaction dbTransaction = null;
/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="entity"></param>
/// <param name="addFileds">指定插入的字段</param>
/// <param name="beginTransaction">是否开启事务</param>
/// <returns></returns>
public int Add<T>(T entity, Expression<Func<T, object>> addFileds = null, bool beginTransaction = false)
{
return AddRange<T>(new T[] { entity }, addFileds, beginTransaction);
}
/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="entities"></param>
/// <param name="addFileds">指定插入的字段</param>
/// <param name="beginTransaction">是否开启事务</param>
/// <returns></returns>
public int AddRange<T>(IEnumerable<T> entities, Expression<Func<T, object>> addFileds = null, bool beginTransaction = true)
{
Type entityType = typeof(T);
var key = entityType.GetKeyProperty();
if (key == null)
{
throw new Exception("实体必须包括主键才能批量更新");
}
string[] columns;
//指定插入的字段
if (addFileds != null)
{
columns = addFileds.GetExpressionToArray();
}
else
{
var properties = entityType.GetGenericProperties();
if (key.PropertyType != typeof(Guid))
{
properties = properties.Where(x => x.Name != key.Name).ToArray();
}
columns = properties.Select(x => x.Name).ToArray();
}
string sql = null;
if (DBType.Name == DbCurrentType.MySql.ToString())
{
//mysql批量写入待优化
sql = $"insert into {entityType.GetEntityTableName()}({string.Join(",", columns)})" +
$"values(@{string.Join(",@", columns)});";
}
else if (DBType.Name == DbCurrentType.PgSql.ToString())
{
//todo pgsql批量写入 待检查是否正确
sql = $"insert into {entityType.GetEntityTableName()}({"\"" + string.Join("\",\"", columns) + "\""})" +
$"values(@{string.Join(",@", columns)});";
}
else
{
//sqlserver通过临时表批量写入
sql = $"insert into {entityType.GetEntityTableName()}({string.Join(",", columns)})" +
$"select {string.Join(",", columns)} from {EntityToSqlTempName.TempInsert};";
//2020.11.21修复sqlserver批量写入主键类型判断错误
sql = entities.GetEntitySql(key.PropertyType == typeof(Guid), sql, null, addFileds, null);
}
return Execute<int>((conn, dbTransaction) =>
{
//todo pgsql待实现
return conn.Execute(sql, (DBType.Name == DbCurrentType.MySql.ToString() || DBType.Name == DbCurrentType.PgSql.ToString()) ? entities.ToList() : null, dbTransaction);
}, beginTransaction);
}
/// <summary>
/// sqlserver使用的临时表参数化批量更新mysql批量更新待发开
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="entity">实体必须带主键</param>
/// <param name="updateFileds">指定更新的字段x=new {x.a,x.b}</param>
/// <param name="beginTransaction">是否开启事务</param>
/// <returns></returns>
public int Update<T>(T entity, Expression<Func<T, object>> updateFileds = null, bool beginTransaction = false)
{
return UpdateRange<T>(new T[] { entity }, updateFileds, beginTransaction);
}
/// <summary>
///(根据主键批量更新实体) sqlserver使用的临时表参数化批量更新mysql待优化
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="entities">实体必须带主键</param>
/// <param name="updateFileds">批定更新字段</param>
/// <param name="beginTransaction"></param>
/// <returns></returns>
public int UpdateRange<T>(IEnumerable<T> entities, Expression<Func<T, object>> updateFileds = null, bool beginTransaction = false)
{
Type entityType = typeof(T);
var key = entityType.GetKeyProperty();
if (key == null)
{
throw new Exception("实体必须包括主键才能批量更新");
}
var properties = entityType.GetGenericProperties()
.Where(x => x.Name != key.Name);
if (updateFileds != null)
{
properties = properties.Where(x => updateFileds.GetExpressionToArray().Contains(x.Name));
}
if (DBType.Name == DbCurrentType.MySql.ToString())
{
List<string> paramsList = new List<string>();
foreach (var item in properties)
{
paramsList.Add(item.Name + "=@" + item.Name);
}
string sqltext = $@"UPDATE { entityType.GetEntityTableName()} SET {string.Join(",", paramsList)} WHERE {entityType.GetKeyName()} = @{entityType.GetKeyName()} ;";
return ExcuteNonQuery(sqltext, entities, CommandType.Text, beginTransaction);
// throw new Exception("mysql批量更新未实现");
}
string fileds = string.Join(",", properties.Select(x => $" a.{x.Name}=b.{x.Name}").ToArray());
string sql = $"update a set {fileds} from {entityType.GetEntityTableName()} as a inner join {EntityToSqlTempName.TempInsert.ToString()} as b on a.{key.Name}=b.{key.Name}";
sql = entities.ToList().GetEntitySql(true, sql, null, updateFileds, null);
return ExcuteNonQuery(sql, null, CommandType.Text, beginTransaction);
}
/// <summary>
/// 使用key批量删除
/// 调用方式:
/// List<int> keys = new List<int>();
/// DBServerProvider.SqlDapper.DelWithKey<Sys_Log, int>(keys);
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="keys"></param>
/// <returns></returns>
public int DelWithKey<T, KeyType>(IEnumerable<KeyType> keys)
{
Type entityType = typeof(T);
var keyProperty = entityType.GetKeyProperty();
string sql = $"DELETE FROM {entityType.GetEntityTableName() } where {keyProperty.Name} in @keys ";
return ExcuteNonQuery(sql, new { keys }).GetInt();
}
/// <summary>
/// 通过Bulk批量插入
/// </summary>
/// <param name="table"></param>
/// <param name="tableName"></param>
/// <param name="sqlBulkCopyOptions"></param>
/// <param name="dbKeyName"></param>
/// <returns></returns>
private int MSSqlBulkInsert(DataTable table, string tableName, SqlBulkCopyOptions sqlBulkCopyOptions = SqlBulkCopyOptions.UseInternalTransaction, string dbKeyName = null)
{
using (var Connection = DBServerProvider.GetDbConnection(_connectionString, _dbCurrentType))
{
if (!string.IsNullOrEmpty(dbKeyName))
{
Connection.ConnectionString = DBServerProvider.GetConnectionString(dbKeyName);
}
using (SqlBulkCopy sqlBulkCopy = new SqlBulkCopy(Connection.ConnectionString, sqlBulkCopyOptions))
{
sqlBulkCopy.DestinationTableName = tableName;
sqlBulkCopy.BatchSize = table.Rows.Count;
for (int i = 0; i < table.Columns.Count; i++)
{
sqlBulkCopy.ColumnMappings.Add(table.Columns[i].ColumnName, table.Columns[i].ColumnName);
}
sqlBulkCopy.WriteToServer(table);
return table.Rows.Count;
}
}
}
public int BulkInsert<T>(List<T> entities, string tableName = null,
Expression<Func<T, object>> columns = null,
SqlBulkCopyOptions? sqlBulkCopyOptions = null)
{
DataTable table = entities.ToDataTable(columns, false);
return BulkInsert(table, tableName ?? typeof(T).GetEntityTableName(), sqlBulkCopyOptions);
}
public int BulkInsert(DataTable table, string tableName, SqlBulkCopyOptions? sqlBulkCopyOptions = null, string fileName = null, string tmpPath = null)
{
if (!string.IsNullOrEmpty(tmpPath))
{
tmpPath = tmpPath.ReplacePath();
}
if (DBType.Name == "MySql")
{
return MySqlBulkInsert(table, tableName, fileName, tmpPath);
}
if (DBType.Name == "PgSql")
{
PGSqlBulkInsert(table, tableName);
return table.Rows.Count;
}
return MSSqlBulkInsert(table, tableName, sqlBulkCopyOptions ?? SqlBulkCopyOptions.KeepIdentity);
}
/// <summary>
///大批量数据插入,返回成功插入行数
////
/// </summary>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="table">数据表</param>
/// <returns>返回成功插入行数</returns>
private int MySqlBulkInsert(DataTable table, string tableName, string fileName = null, string tmpPath = null)
{
if (table.Rows.Count == 0) return 0;
// tmpPath = tmpPath ?? FileHelper.GetCurrentDownLoadPath();
int insertCount = 0;
string csv = DataTableToCsv(table);
string text = $"当前行:{table.Rows.Count}";
MemoryStream stream = null;
try
{
using (var Connection = DBServerProvider.GetDbConnection(_connectionString, _dbCurrentType))
{
if (Connection.State == ConnectionState.Closed)
{
Connection.Open();
}
using (IDbTransaction tran = Connection.BeginTransaction())
{
MySqlBulkLoader bulk = new MySqlBulkLoader(Connection as MySqlConnection)
{
LineTerminator = "\n",
TableName = tableName,
CharacterSet = "UTF8",
FieldQuotationCharacter = '"',
FieldQuotationOptional = true
};
var array = Encoding.UTF8.GetBytes(csv);
using (stream = new MemoryStream(array))
{
stream = new MemoryStream(array);
bulk.SourceStream = stream; //File.OpenRead(fileName);
bulk.Columns.AddRange(table.Columns.Cast<DataColumn>().Select(colum => colum.ColumnName).ToList());
insertCount = bulk.Load();
tran.Commit();
}
}
}
}
catch (Exception ex)
{
throw ex;
}
return insertCount;
// File.Delete(path);
}
/// <summary>
///将DataTable转换为标准的CSV
/// </summary>
/// <param name="table">数据表</param>
/// <returns>返回标准的CSV</returns>
private string DataTableToCsv(DataTable table)
{
//以半角逗号(即,)作分隔符,列为空也要表达其存在。
//列内容如存在半角逗号(即,)则用半角引号(即"")将该字段值包含起来。
//列内容如存在半角引号(即")则应替换成半角双引号("")转义,并用半角引号(即"")将该字段值包含起来。
StringBuilder sb = new StringBuilder();
DataColumn colum;
Type typeString = typeof(string);
Type typeDate = typeof(DateTime);
foreach (DataRow row in table.Rows)
{
for (int i = 0; i < table.Columns.Count; i++)
{
colum = table.Columns[i];
if (i != 0) sb.Append("\t");
if (colum.DataType == typeString)
{
var data = $"\"{row[colum].ToString().Replace("\"", "\"\"")}\"";
sb.Append(data);
}
else if (colum.DataType == typeDate)
{
//centos系统里把datatable里的日期转换成了10/18/18 3:26:15 PM格式
bool b = DateTime.TryParse(row[colum].ToString(), out DateTime dt);
sb.Append(b ? dt.ToString("yyyy-MM-dd HH:mm:ss") : "");
}
else sb.Append(row[colum].ToString());
}
sb.Append("\n");
}
return sb.ToString();
}
/// <summary>
/// 2020.08.07增加PGSQL批量写入
/// </summary>
/// <param name="table"></param>
/// <param name="tableName"></param>
private void PGSqlBulkInsert(DataTable table, string tableName)
{
List<string> columns = new List<string>();
for (int i = 0; i < table.Columns.Count; i++)
{
columns.Add("\"" + table.Columns[i].ColumnName + "\"");
}
string copySql = $"copy \"public\".\"{tableName}\"({string.Join(',', columns)}) FROM STDIN (FORMAT BINARY)";
using (var conn = new Npgsql.NpgsqlConnection(_connectionString))
{
conn.Open();
using (var writer = conn.BeginBinaryImport(copySql))
{
foreach (DataRow row in table.Rows)
{
writer.StartRow();
for (int i = 0; i < table.Columns.Count; i++)
{
writer.Write(row[i]);
}
}
writer.Complete();
}
}
}
}
}