DbContext.cs
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using SqlSugar;
using System;
namespace HH_WCS_Standard
{
public class DbContext
{
#region 属性字段
//private static string _connectionString = Properties.Resources.orlConnext;
private static string _connectionString = Properties.Resources.SqlConnect2;
/// <summary>
/// 连接字符串
/// </summary>
public static string ConnectionString
{
get { return _connectionString; }
set { _connectionString = value; }
}
//private static DbType _dbType = DbType.Oracle;
private static DbType _dbType = DbType.MySql;
/// <summary>
/// 数据库类型
/// </summary>
public static DbType DbType
{
get { return _dbType; }
set { _dbType = value; }
}
private SqlSugarClient _db;
/// <summary>
/// 数据连接对象
/// </summary>
public SqlSugarClient Db
{
get { return _db; }
private set { _db = value; }
}
/// <summary>
/// 数据库上下文实例（自动关闭连接）
/// </summary>
public static DbContext Context
{
get
{
return new DbContext();
}
}
#endregion 属性字段
#region 构造函数
/// <summary>
/// 功能描述:构造函数
/// </summary>
private DbContext()
{
if (string.IsNullOrEmpty(_connectionString))
throw new ArgumentNullException("数据库连接字符串为空");
_db = new SqlSugarClient(new ConnectionConfig()
{
ConnectionString = _connectionString,
DbType = _dbType,
InitKeyType = InitKeyType.Attribute,
IsAutoCloseConnection = true,
IsShardSameThread = true,
MoreSettings = new ConnMoreSettings()
{
//IsWithNoLockQuery = true,
IsAutoRemoveDataCache = true
}
});
}
public DbContext(string StrConnect, DbType dbType)
{
if (string.IsNullOrEmpty(StrConnect))
throw new ArgumentNullException("数据库连接字符串为空");
_db = new SqlSugarClient(new ConnectionConfig()
{
ConnectionString = StrConnect,
DbType = dbType,
InitKeyType = InitKeyType.Attribute,
IsAutoCloseConnection = true,
IsShardSameThread = true,
MoreSettings = new ConnMoreSettings()
{
//IsWithNoLockQuery = true,
IsAutoRemoveDataCache = true
}
});
}
/// <summary>
/// 功能描述:构造函数
/// </summary>
/// <param name="blnIsAutoCloseConnection">是否自动关闭连接</param>
private DbContext(bool blnIsAutoCloseConnection)
{
if (string.IsNullOrEmpty(_connectionString))
throw new ArgumentNullException("数据库连接字符串为空");
_db = new SqlSugarClient(new ConnectionConfig()
{
ConnectionString = _connectionString,
DbType = _dbType,
InitKeyType = InitKeyType.Attribute,
IsAutoCloseConnection = blnIsAutoCloseConnection,
IsShardSameThread = true,
MoreSettings = new ConnMoreSettings()
{
//IsWithNoLockQuery = true,
IsAutoRemoveDataCache = true
}
});
}
#endregion 构造函数
#region 实例方法
/// <summary>
/// 功能描述:获取数据库处理对象
/// </summary>
/// <returns>返回值</returns>
public SimpleClient<T> GetEntityDB<T>() where T : class, new()
{
return new SimpleClient<T>(_db);
}
/// <summary>
/// 功能描述:获取数据库处理对象
/// </summary>
/// <param name="db">db</param>
/// <returns>返回值</returns>
public SimpleClient<T> GetEntityDB<T>(SqlSugarClient db) where T : class, new()
{
return new SimpleClient<T>(db);
}
#region 根据实体类生成数据库表
/// <summary>
/// 功能描述:根据实体类生成数据库表
/// 作 者:beck.huang
/// 创建日期:2018-05-08 10:31:02
/// 任务编号:中餐
/// </summary>
/// <param name="blnBackupTable">是否备份表</param>
/// <param name="lstEntitys">指定的实体</param>
public void CreateTableByEntity<T>(bool blnBackupTable, params T[] lstEntitys) where T : class, new()
{
Type[] lstTypes = null;
if (lstEntitys != null)
{
lstTypes = new Type[lstEntitys.Length];
for (int i = 0; i < lstEntitys.Length; i++)
{
lstTypes[i] = typeof(T);
}
}
CreateTableByEntity(blnBackupTable, lstTypes);
}
/// <summary>
/// 功能描述:根据实体类生成数据库表
/// 作 者:beck.huang
/// 创建日期:2018-05-08 10:31:14
/// 任务编号:中餐
/// </summary>
/// <param name="blnBackupTable">是否备份表</param>
/// <param name="lstEntitys">指定的实体</param>
public void CreateTableByEntity(bool blnBackupTable, params Type[] lstEntitys)
{
if (blnBackupTable)
{
_db.CodeFirst.BackupTable().InitTables(lstEntitys); //change entity backupTable
}
else
{
_db.CodeFirst.InitTables(lstEntitys);
}
}
#endregion 根据实体类生成数据库表
#endregion 实例方法
#region 静态方法
/// <summary>
/// 功能描述:获得一个DbContext
/// </summary>
/// <param name="blnIsAutoCloseConnection">是否自动关闭连接（如果为false，则使用接受时需要手动关闭Db）</param>
/// <returns>返回值</returns>
public static DbContext GetDbContext(bool blnIsAutoCloseConnection)
{
return new DbContext(blnIsAutoCloseConnection);
}
/// <summary>
/// 功能描述:设置初始化参数
/// </summary>
/// <param name="strConnectionString">连接字符串</param>
/// <param name="enmDbType">数据库类型</param>
public static void Init(string strConnectionString, DbType enmDbType = SqlSugar.DbType.MySql)
{
_connectionString = strConnectionString;
_dbType = enmDbType;
}
/// <summary>
/// 功能描述:创建一个链接配置
/// </summary>
/// <param name="blnIsAutoCloseConnection">是否自动关闭连接</param>
/// <param name="blnIsShardSameThread">是否夸类事务</param>
/// <returns>ConnectionConfig</returns>
public static ConnectionConfig GetConnectionConfig(bool blnIsAutoCloseConnection = true, bool blnIsShardSameThread = false)
{
ConnectionConfig config = new ConnectionConfig()
{
ConnectionString = _connectionString,
DbType = _dbType,
IsAutoCloseConnection = blnIsAutoCloseConnection,
IsShardSameThread = blnIsShardSameThread
};
return config;
}
/// <summary>
/// 功能描述:获取一个自定义的DB
/// </summary>
/// <param name="config">config</param>
/// <returns>返回值</returns>
public static SqlSugarClient GetCustomDB(ConnectionConfig config)
{
return new SqlSugarClient(config);
}
/// <summary>
/// 功能描述:获取一个自定义的数据库处理对象
/// </summary>
/// <param name="sugarClient">sugarClient</param>
/// <returns>返回值</returns>
public static SimpleClient<T> GetCustomEntityDB<T>(SqlSugarClient sugarClient) where T : class, new()
{
return new SimpleClient<T>(sugarClient);
}
/// <summary>
/// 功能描述:获取一个自定义的数据库处理对象
/// 任务编号:中餐
/// </summary>
/// <param name="config">config</param>
/// <returns>返回值</returns>
public static SimpleClient<T> GetCustomEntityDB<T>(ConnectionConfig config) where T : class, new()
{
SqlSugarClient sugarClient = GetCustomDB(config);
return GetCustomEntityDB<T>(sugarClient);
}
#endregion 静态方法
}
}