数据访问公共类（BaseProvider）
using System;
using System.Data;
using System.Data.Common;
using System.Configuration;
using System.Text;
using System.Collections.Generic;
using System.Data.SqlClient; namespace MDCRM.DAL
{
/// <summary>
/// 数据访问基类
/// </summary>
public abstract class BaseProvider
{ protected string ConnectionString { get; set; } protected BaseProvider()
{
this.ConnectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
} /// <summary>
/// 构造
/// </summary>
/// <param name="connectionStringSectionName">链接字符串节点对应名称</param>
protected BaseProvider(string connectionStringSectionName)
{
this.ConnectionString = ConfigurationManager.ConnectionStrings[connectionStringSectionName].ConnectionString;
} /// <summary>
/// 执行 ExecuteNonQuery
/// </summary>
protected int ExecuteNonQuery(DbCommand cmd)
{
foreach (DbParameter param in cmd.Parameters)
{
if (param.Direction == ParameterDirection.Output || param.Direction == ParameterDirection.ReturnValue)
{
switch (param.DbType)
{
case DbType.AnsiString:
case DbType.AnsiStringFixedLength:
case DbType.String:
case DbType.StringFixedLength:
case DbType.Xml:
param.Value = string.Empty;
break;
case DbType.Boolean:
param.Value = false;
break;
case DbType.Byte:
param.Value = byte.MinValue;
break;
case DbType.Date:
case DbType.DateTime:
param.Value = DateTime.MinValue;
break;
case DbType.Currency:
case DbType.Decimal:
param.Value = decimal.MinValue;
break;
case DbType.Guid:
param.Value = Guid.Empty;
break;
case DbType.Double:
case DbType.Int16:
case DbType.Int32:
case DbType.Int64:
param.Value = 0;
break;
default:
param.Value = null;
break;
}
}
} FilterSqlParameter(cmd); return cmd.ExecuteNonQuery();
} /// <summary>
/// 执行 ExecuteReader
/// </summary>
protected IDataReader ExecuteReader(DbCommand cmd)
{
FilterSqlParameter(cmd); return ExecuteReader(cmd, CommandBehavior.Default);
} /// <summary>
/// 执行 ExecuteReader
/// </summary>
protected IDataReader ExecuteReader(DbCommand cmd, CommandBehavior behavior)
{
FilterSqlParameter(cmd); return cmd.ExecuteReader(behavior);
} /// <summary>
/// 执行查询，并返回查询所返回的结果集中第一行的第一列。所有其他的列和行将被忽略。
/// </summary>
protected object ExecuteScalar(DbCommand cmd)
{
FilterSqlParameter(cmd); return cmd.ExecuteScalar();
} /// <summary>
/// 执行查询，返回数据结果集
/// </summary>
protected void FillDataSet(System.Data.DataSet dataSet, DbCommand cmd, string tableNames)
{
FillDataSet(dataSet, cmd, tableNames.Split('|'));
} /// <summary>
/// 执行查询，返回数据结果集
/// </summary>
protected void FillDataSet(System.Data.DataSet dataSet, DbCommand cmd, string[] tableNames)
{
System.Data.SqlClient.SqlDataAdapter dataAdapter = new System.Data.SqlClient.SqlDataAdapter((System.Data.SqlClient.SqlCommand)cmd);
cmd.CommandTimeout = 10000; string mapTableName = "Table";
for (int index = 0; index < tableNames.Length; index++)
{
if (tableNames[index] != null && tableNames[index].Length >= 0)
{
dataAdapter.TableMappings.Add(mapTableName, tableNames[index]);
mapTableName = "Table" + (index + 1).ToString();
}
} FilterSqlParameter(cmd); dataAdapter.Fill(dataSet);
} /// <summary>
/// 集合转成搜索条件
/// </summary>
protected string ListToString<T>(List<T> list, char departChar)
{
string listStr = string.Empty;
if (list != null && list.Count > 0)
{
foreach (T tType in list)
{
if (!string.IsNullOrEmpty(tType.ToString().Trim()))
listStr += tType.ToString().Trim() + departChar.ToString();
}
}
return listStr.Trim(departChar);
} /// <summary>
/// 集合转成搜索条件
/// </summary>
protected string ListToString<T>(List<T> list, string departStr)
{
string listStr = string.Empty;
if (list != null && list.Count > 0)
{
foreach (T tType in list)
{
if (!string.IsNullOrEmpty(tType.ToString().Trim()))
listStr += tType.ToString().Trim() + departStr.ToString();
}
} if (!string.IsNullOrEmpty(listStr))
listStr = listStr.Remove(listStr.Length - departStr.Length); return listStr;
} /// <summary>
/// 数组转成搜索条件
/// </summary>
protected string ArrayToString<T>(T[] arr, char departChar)
{
string listStr = string.Empty;
if (arr != null && arr.Length > 0)
{
foreach (T tType in arr)
{
if (!string.IsNullOrEmpty(tType.ToString().Trim()))
listStr += tType.ToString().Trim() + departChar.ToString();
}
}
return listStr.Trim(departChar);
} /// <summary>
/// 过滤注入式特殊符号
/// </summary>
protected SqlParameter[] FilterSqlParameterArray(params SqlParameter[] parameterValues)
{
int paraCount = 0;
paraCount = parameterValues.Length;
SqlParameter[] paraArray = new SqlParameter[paraCount];
for (int i = 0; i < paraCount; i++)
{
SqlParameter parameterValue = parameterValues[i];
if (parameterValue.DbType == DbType.AnsiString || parameterValue.DbType == DbType.String || parameterValue.SqlDbType == SqlDbType.VarChar || parameterValue.SqlDbType == SqlDbType.NVarChar || parameterValue.SqlDbType == SqlDbType.Text)
{
if (parameterValue.Value != null && parameterValue.Value.ToString() != "")
parameterValue.Value = parameterValue.Value.ToString().Replace("'", "''").Replace("--", "");
}
paraArray[i] = parameterValue;
}
return paraArray;
} /// <summary>
/// 过滤注入式特殊符号
/// </summary>
protected void FilterSqlParameter(DbCommand cmd)
{
int paraCount = 0;
paraCount = cmd.Parameters.Count;
SqlParameter[] paraArray = new SqlParameter[paraCount];
for (int i = 0; i < paraCount; i++)
{
SqlParameter parameterValue = (SqlParameter)cmd.Parameters[i];
if (parameterValue.DbType == DbType.AnsiString || parameterValue.DbType == DbType.String || parameterValue.SqlDbType == SqlDbType.VarChar || parameterValue.SqlDbType == SqlDbType.NVarChar || parameterValue.SqlDbType == SqlDbType.Text)
{
if (parameterValue.Value != null && parameterValue.Value.ToString() != "")
parameterValue.Value = parameterValue.Value.ToString().Replace("'", "''").Replace("--", "");
}
paraArray[i] = parameterValue;
} cmd.Parameters.Clear();
cmd.Parameters.AddRange(paraArray);
}
/// <summary>
/// 将传入的参数生成为相应的sql语句
/// </summary>
/// <param name="param">SqlParameter[]</param>
/// <param name="split">split</param>
/// <returns>string</returns>
protected string SqlParameterToSql(SqlParameter[] param, string split)
{
string sql = string.Empty;
if (param == null) return sql;
for (int i = 0; i < param.Length; i++)
{
SqlParameter key = param[i];
if (i > 0)
{
sql += " " + split;
}
sql += string.Format(" {0}=@{1}", key.ParameterName, key.ParameterName);
}
return sql;
}
/// <summary>
/// 执行查询
/// </summary>
/// <param name="ConnectionString">ConnectionString</param>
/// <param name="data">DataSet</param>
/// <param name="tableName">string</param>
/// <param name="param">SqlSelectEntity</param>
protected void Select(string ConnectionString, DataSet data, string tableName, SqlSelectEntity param)
{
string select = string.Join(",", param.Select.ToArray());
string where = " 1=1 ";
if (param.Where != null)
{
where += "and " + SqlParameterToSql(param.Where, "and");
}
string sql = string.Format("select {0} from {1} where {2}", select, param.TableName, where);
if (!string.IsNullOrEmpty(param.Sort)) {
sql += string.Format(" order by {0}", param.Sort);
}
using (SqlConnection conn = new SqlConnection(ConnectionString))
{
SqlCommand cmd = new SqlCommand(sql, conn);
if (param.Where != null)
cmd.Parameters.AddRange(param.Where);
conn.Open(); FillDataSet(data, cmd, tableName);
}
}
/// <summary>
/// 执行更新
/// </summary>
/// <param name="ConnectionString">ConnectionString</param>
/// <param name="param">SqlUpdateEntity</param>
/// <returns>int(受影响的行数)</returns>
protected int Update(string ConnectionString, SqlUpdateEntity param)
{
string where = " 1=1 ";
string update = SqlParameterToSql(param.Update,",");
if (param.Where!=null)
{
where += "and " + SqlParameterToSql(param.Where, "and");
}
string sql = string.Format("update {0} set {1} where {2}", param.TableName, update, where); using (SqlConnection conn = new SqlConnection(ConnectionString))
{
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddRange(param.Update);
if (param.Where != null)
cmd.Parameters.AddRange(param.Where);
conn.Open(); return ExecuteNonQuery(cmd);
}
}
/// <summary>
/// 执行删除
/// </summary>
/// <param name="ConnectionString">ConnectionString</param>
/// <param name="param">SqlDeleteEntity</param>
/// <returns>int(受影响的行数)</returns>
protected int Delete(string ConnectionString, SqlDeleteEntity param)
{
string where = " 1=1 ";
if (param.Where!=null)
{
where += "and " + SqlParameterToSql(param.Where, "and");
}
string sql = string.Format("delete from {0} where {1}", param.TableName, where); using (SqlConnection conn = new SqlConnection(ConnectionString))
{
SqlCommand cmd = new SqlCommand(sql, conn);
if (param.Where != null)
cmd.Parameters.AddRange(param.Where);
conn.Open(); return ExecuteNonQuery(cmd);
}
}
/// <summary>
/// 执行插入
/// </summary>
/// <param name="ConnectionString">ConnectionString</param>
/// <param name="param">SqlInsertEntity</param>
/// <returns>int(受影响的行数)</returns>
protected int Insert(string ConnectionString, SqlInsertEntity param)
{ List<string> fileds = new List<string>();
List<string> values = new List<string>();
foreach (SqlParameter parameter in param.Insert)
{
fileds.Add(parameter.ParameterName);
values.Add("@" + parameter.ParameterName);
}
string sql = string.Format("insert into {0}({1}) values({2})", param.TableName, string.Join(",", fileds), string.Join(",", values)); using (SqlConnection conn = new SqlConnection(ConnectionString))
{
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddRange(param.Insert);
conn.Open(); return ExecuteNonQuery(cmd);
}
}
}
/// <summary>
/// 查询的基类
/// </summary>
public class SqlEntity
{
/// <summary>
/// 数据表名称
/// </summary>
public string TableName { get; set; }
}
/// <summary>
/// Select Class
/// </summary>
public class SqlSelectEntity : SqlEntity
{
/// <summary>
/// 需要查询的字段，查询所有字段传new List<string>(){"*"}
/// </summary>
public List<string> Select { get; set; }
/// <summary>
/// 查询条件new SqlParameter[]{ new SqlParameter("Filed",FiledValue) };
/// 不需要@
/// </summary>
public SqlParameter[] Where { get; set; }
/// <summary>
/// 排序字符串 CreateTime Desc
/// </summary>
public string Sort { get; set; } }
/// <summary>
/// Insert Class
/// </summary>
public class SqlInsertEntity : SqlEntity
{
/// <summary>
/// 插入的字段和值 new SqlParameter[]{ new SqlParameter("Filed",FiledValue) };
/// 不需要@
/// </summary>
public SqlParameter[] Insert { get; set; } }
/// <summary>
/// Update Class
/// </summary>
public class SqlUpdateEntity : SqlEntity
{
/// <summary>
/// 更新的字段和值 new SqlParameter[]{ new SqlParameter("Filed",FiledValue) };
/// 不需要@
/// </summary>
public SqlParameter[] Update { get; set; }
/// <summary>
/// 查询条件new SqlParameter[]{ new SqlParameter("Filed",FiledValue) };
/// 不需要@
/// </summary>
public SqlParameter[] Where { get; set; }
}
/// <summary>
/// Delete Class
/// </summary>
public class SqlDeleteEntity : SqlEntity
{
/// <summary>
/// 查询条件new SqlParameter[]{ new SqlParameter("Filed",FiledValue) };
/// 不需要@
/// </summary>
public SqlParameter[] Where { get; set; }
}
}
using System;
using System.Data;
using System.Data.Common;
using System.Configuration;
using System.Text;
using System.Collections.Generic;
using System.Data.SqlClient;
namespace MDCRM.DAL
{
/// <summary>
/// 数据访问基类
/// </summary>
public abstract class BaseProvider
{
protected string ConnectionString { get; set; }
protected BaseProvider()
{
this.ConnectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
}
/// <summary>
/// 构造
/// </summary>
/// <param name="connectionStringSectionName">链接字符串节点对应名称</param>
protected BaseProvider(string connectionStringSectionName)
{
this.ConnectionString = ConfigurationManager.ConnectionStrings[connectionStringSectionName].ConnectionString;
}
/// <summary>
/// 执行 ExecuteNonQuery
/// </summary>
protected int ExecuteNonQuery(DbCommand cmd)
{
foreach (DbParameter param in cmd.Parameters)
{
if (param.Direction == ParameterDirection.Output || param.Direction == ParameterDirection.ReturnValue)
{
switch (param.DbType)
{
case DbType.AnsiString:
case DbType.AnsiStringFixedLength:
case DbType.String:
case DbType.StringFixedLength:
case DbType.Xml:
param.Value = string.Empty;
break;
case DbType.Boolean:
param.Value = false;
break;
case DbType.Byte:
param.Value = byte.MinValue;
break;
case DbType.Date:
case DbType.DateTime:
param.Value = DateTime.MinValue;
break;
case DbType.Currency:
case DbType.Decimal:
param.Value = decimal.MinValue;
break;
case DbType.Guid:
param.Value = Guid.Empty;
break;
case DbType.Double:
case DbType.Int16:
case DbType.Int32:
case DbType.Int64:
param.Value = 0;
break;
default:
param.Value = null;
break;
}
}
}
FilterSqlParameter(cmd);
return cmd.ExecuteNonQuery();
}
/// <summary>
/// 执行 ExecuteReader
/// </summary>
protected IDataReader ExecuteReader(DbCommand cmd)
{
FilterSqlParameter(cmd);
return ExecuteReader(cmd, CommandBehavior.Default);
}
/// <summary>
/// 执行 ExecuteReader
/// </summary>
protected IDataReader ExecuteReader(DbCommand cmd, CommandBehavior behavior)
{
FilterSqlParameter(cmd);
return cmd.ExecuteReader(behavior);
}
/// <summary>
/// 执行查询，并返回查询所返回的结果集中第一行的第一列。所有其他的列和行将被忽略。
/// </summary>
protected object ExecuteScalar(DbCommand cmd)
{
FilterSqlParameter(cmd);
return cmd.ExecuteScalar();
}
/// <summary>
/// 执行查询，返回数据结果集
/// </summary>
protected void FillDataSet(System.Data.DataSet dataSet, DbCommand cmd, string tableNames)
{
FillDataSet(dataSet, cmd, tableNames.Split('|'));
}
/// <summary>
/// 执行查询，返回数据结果集
/// </summary>
protected void FillDataSet(System.Data.DataSet dataSet, DbCommand cmd, string[] tableNames)
{
System.Data.SqlClient.SqlDataAdapter dataAdapter = new System.Data.SqlClient.SqlDataAdapter((System.Data.SqlClient.SqlCommand)cmd);
cmd.CommandTimeout = 10000;
string mapTableName = "Table";
for (int index = 0; index < tableNames.Length; index++)
{
if (tableNames[index] != null && tableNames[index].Length >= 0)
{
dataAdapter.TableMappings.Add(mapTableName, tableNames[index]);
mapTableName = "Table" + (index + 1).ToString();
}
}
FilterSqlParameter(cmd);
dataAdapter.Fill(dataSet);
}
/// <summary>
/// 集合转成搜索条件
/// </summary>
protected string ListToString<T>(List<T> list, char departChar)
{
string listStr = string.Empty;
if (list != null && list.Count > 0)
{
foreach (T tType in list)
{
if (!string.IsNullOrEmpty(tType.ToString().Trim()))
listStr += tType.ToString().Trim() + departChar.ToString();
}
}
return listStr.Trim(departChar);
}
/// <summary>
/// 集合转成搜索条件
/// </summary>
protected string ListToString<T>(List<T> list, string departStr)
{
string listStr = string.Empty;
if (list != null && list.Count > 0)
{
foreach (T tType in list)
{
if (!string.IsNullOrEmpty(tType.ToString().Trim()))
listStr += tType.ToString().Trim() + departStr.ToString();
}
}
if (!string.IsNullOrEmpty(listStr))
listStr = listStr.Remove(listStr.Length - departStr.Length);
return listStr;
}
/// <summary>
/// 数组转成搜索条件
/// </summary>
protected string ArrayToString<T>(T[] arr, char departChar)
{
string listStr = string.Empty;
if (arr != null && arr.Length > 0)
{
foreach (T tType in arr)
{
if (!string.IsNullOrEmpty(tType.ToString().Trim()))
listStr += tType.ToString().Trim() + departChar.ToString();
}
}
return listStr.Trim(departChar);
}
/// <summary>
/// 过滤注入式特殊符号
/// </summary>
protected SqlParameter[] FilterSqlParameterArray(params SqlParameter[] parameterValues)
{
int paraCount = 0;
paraCount = parameterValues.Length;
SqlParameter[] paraArray = new SqlParameter[paraCount];
for (int i = 0; i < paraCount; i++)
{
SqlParameter parameterValue = parameterValues[i];
if (parameterValue.DbType == DbType.AnsiString || parameterValue.DbType == DbType.String || parameterValue.SqlDbType == SqlDbType.VarChar || parameterValue.SqlDbType == SqlDbType.NVarChar || parameterValue.SqlDbType == SqlDbType.Text)
{
if (parameterValue.Value != null && parameterValue.Value.ToString() != "")
parameterValue.Value = parameterValue.Value.ToString().Replace("'", "''").Replace("--", "");
}
paraArray[i] = parameterValue;
}
return paraArray;
}
/// <summary>
/// 过滤注入式特殊符号
/// </summary>
protected void FilterSqlParameter(DbCommand cmd)
{
int paraCount = 0;
paraCount = cmd.Parameters.Count;
SqlParameter[] paraArray = new SqlParameter[paraCount];
for (int i = 0; i < paraCount; i++)
{
SqlParameter parameterValue = (SqlParameter)cmd.Parameters[i];
if (parameterValue.DbType == DbType.AnsiString || parameterValue.DbType == DbType.String || parameterValue.SqlDbType == SqlDbType.VarChar || parameterValue.SqlDbType == SqlDbType.NVarChar || parameterValue.SqlDbType == SqlDbType.Text)
{
if (parameterValue.Value != null && parameterValue.Value.ToString() != "")
parameterValue.Value = parameterValue.Value.ToString().Replace("'", "''").Replace("--", "");
}
paraArray[i] = parameterValue;
}
cmd.Parameters.Clear();
cmd.Parameters.AddRange(paraArray);
}
/// <summary>
/// 将传入的参数生成为相应的sql语句
/// </summary>
/// <param name="param">SqlParameter[]</param>
/// <param name="split">split</param>
/// <returns>string</returns>
protected string SqlParameterToSql(SqlParameter[] param, string split)
{
string sql = string.Empty;
if (param == null) return sql;
for (int i = 0; i < param.Length; i++)
{
SqlParameter key = param[i];
if (i > 0)
{
sql += " " + split;
}
sql += string.Format(" {0}=@{1}", key.ParameterName, key.ParameterName);
}
return sql;
}
/// <summary>
/// 执行查询
/// </summary>
/// <param name="ConnectionString">ConnectionString</param>
/// <param name="data">DataSet</param>
/// <param name="tableName">string</param>
/// <param name="param">SqlSelectEntity</param>
protected void Select(string ConnectionString, DataSet data, string tableName, SqlSelectEntity param)
{
string select = string.Join(",", param.Select.ToArray());
string where = " 1=1 ";
if (param.Where != null)
{
where += "and " + SqlParameterToSql(param.Where, "and");
}
string sql = string.Format("select {0} from {1} where {2}", select, param.TableName, where);
if (!string.IsNullOrEmpty(param.Sort)) {
sql += string.Format(" order by {0}", param.Sort);
}
using (SqlConnection conn = new SqlConnection(ConnectionString))
{
SqlCommand cmd = new SqlCommand(sql, conn);
if (param.Where != null)
cmd.Parameters.AddRange(param.Where);
conn.Open();
FillDataSet(data, cmd, tableName);
}
}
/// <summary>
/// 执行更新
/// </summary>
/// <param name="ConnectionString">ConnectionString</param>
/// <param name="param">SqlUpdateEntity</param>
/// <returns>int(受影响的行数)</returns>
protected int Update(string ConnectionString, SqlUpdateEntity param)
{
string where = " 1=1 ";
string update = SqlParameterToSql(param.Update,",");
if (param.Where!=null)
{
where += "and " + SqlParameterToSql(param.Where, "and");
}
string sql = string.Format("update {0} set {1} where {2}", param.TableName, update, where);
using (SqlConnection conn = new SqlConnection(ConnectionString))
{
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddRange(param.Update);
if (param.Where != null)
cmd.Parameters.AddRange(param.Where);
conn.Open();
return ExecuteNonQuery(cmd);
}
}
/// <summary>
/// 执行删除
/// </summary>
/// <param name="ConnectionString">ConnectionString</param>
/// <param name="param">SqlDeleteEntity</param>
/// <returns>int(受影响的行数)</returns>
protected int Delete(string ConnectionString, SqlDeleteEntity param)
{
string where = " 1=1 ";
if (param.Where!=null)
{
where += "and " + SqlParameterToSql(param.Where, "and");
}
string sql = string.Format("delete from {0} where {1}", param.TableName, where);
using (SqlConnection conn = new SqlConnection(ConnectionString))
{
SqlCommand cmd = new SqlCommand(sql, conn);
if (param.Where != null)
cmd.Parameters.AddRange(param.Where);
conn.Open();
return ExecuteNonQuery(cmd);
}
}
/// <summary>
/// 执行插入
/// </summary>
/// <param name="ConnectionString">ConnectionString</param>
/// <param name="param">SqlInsertEntity</param>
/// <returns>int(受影响的行数)</returns>
protected int Insert(string ConnectionString, SqlInsertEntity param)
{
List<string> fileds = new List<string>();
List<string> values = new List<string>();
foreach (SqlParameter parameter in param.Insert)
{
fileds.Add(parameter.ParameterName);
values.Add("@" + parameter.ParameterName);
}
string sql = string.Format("insert into {0}({1}) values({2})", param.TableName, string.Join(",", fileds), string.Join(",", values));
using (SqlConnection conn = new SqlConnection(ConnectionString))
{
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddRange(param.Insert);
conn.Open();
return ExecuteNonQuery(cmd);
}
}
}
/// <summary>
/// 查询的基类
/// </summary>
public class SqlEntity
{
/// <summary>
/// 数据表名称
/// </summary>
public string TableName { get; set; }
}
/// <summary>
/// Select Class
/// </summary>
public class SqlSelectEntity : SqlEntity
{
/// <summary>
/// 需要查询的字段，查询所有字段传new List<string>(){"*"}
/// </summary>
public List<string> Select { get; set; }
/// <summary>
/// 查询条件new SqlParameter[]{ new SqlParameter("Filed",FiledValue) };
/// 不需要@
/// </summary>
public SqlParameter[] Where { get; set; }
/// <summary>
/// 排序字符串 CreateTime Desc
/// </summary>
public string Sort { get; set; }
}
/// <summary>
/// Insert Class
/// </summary>
public class SqlInsertEntity : SqlEntity
{
/// <summary>
/// 插入的字段和值 new SqlParameter[]{ new SqlParameter("Filed",FiledValue) };
/// 不需要@
/// </summary>
public SqlParameter[] Insert { get; set; }
}
/// <summary>
/// Update Class
/// </summary>
public class SqlUpdateEntity : SqlEntity
{
/// <summary>
/// 更新的字段和值 new SqlParameter[]{ new SqlParameter("Filed",FiledValue) };
/// 不需要@
/// </summary>
public SqlParameter[] Update { get; set; }
/// <summary>
/// 查询条件new SqlParameter[]{ new SqlParameter("Filed",FiledValue) };
/// 不需要@
/// </summary>
public SqlParameter[] Where { get; set; }
}
/// <summary>
/// Delete Class
/// </summary>
public class SqlDeleteEntity : SqlEntity
{
/// <summary>
/// 查询条件new SqlParameter[]{ new SqlParameter("Filed",FiledValue) };
/// 不需要@
/// </summary>
public SqlParameter[] Where { get; set; }
}
}
数据访问公共类（BaseProvider）的更多相关文章
- 【ASP.NET-中级】SQLHelper数据访问公共类
ASP.NET开发中的三层开发思想指的是UI层(界面显示层),BLL层(业务逻辑层),DAL层(数据访问层)三层,三层之间通过函数的调用来达到降低耦合,易于系统维护的目的,SQLHelper助手类的主 ...
- 基于SqlSugar的开发框架循序渐进介绍（4）-- 在数据访问基类中对GUID主键进行自动赋值处理
我们在设计数据库表的时候,往往为了方便,主键ID一般采用字符串类型或者GUID类型,这样对于数据库表记录的迁移非常方便,而且有时候可以在处理关联记录的时候,提前对应的ID值.但有时候进行数据记录插入的 ...
- 数据访问层的超级基类AbstractBaseDAL
using System; using System.Collections; using System.Data; using System.Data.Common; using System.Co ...
- Spring.NET 中的 ADO.NET 数据访问的示例
Spring.NET 1.3.1 中提供了一个使用 AdoTemplate 的完整示例,包括使用泛型和使用非泛型技术进行数据访问,这个示例位于下载的压缩包中\Spring.NET-1.3.1\Spri ...
- JS设计模式（三） 数据访问对象模式
引言 HTML5 提供了两种在客户端存储数据的新方法:localStorage.sessionStorage,他们是Web Storage API 提供的两种存储机制,区别在于前者属于永久性存储,而后 ...
- [转]DbHelper通用数据库访问帮助类
之前我一直都是在博客园中查看各位高手的博文,确实学到了不少知识,不过比较少写博客,现在就把我自己在项目实施过程中使用到比较好的技术框架写出来,希望能让更多的人了解和学习. 通常我们在开发使用数据库访问 ...
- Util应用程序框架公共操作类（一）:数据类型转换公共操作类（介绍篇）
本系列文章将介绍一些对初学者有帮助的辅助类,这些辅助类本身并没有什么稀奇之处,如何能发现需要封装它们可能更加重要,所谓授之以鱼不如授之以渔,掌握封装公共操作类的技巧才是关键,我会详细说明创建这些类的动 ...
- Util应用程序框架公共操作类(三):数据类型转换公共操作类（扩展篇）
上一篇以TDD方式介绍了数据类型转换公共操作类的开发,并提供了单元测试和实现代码,本文将演示通过扩展方法来增强公共操作类,以便调用时更加简化. 下面以字符串转换为List<Guid>为例进 ...
- Util应用程序框架公共操作类(二):数据类型转换公共操作类（源码篇）
上一篇介绍了数据类型转换的一些情况,可以看出,如果不进行封装,有可能导致比较混乱的代码.本文通过TDD方式把数据类型转换公共操作类开发出来,并提供源码下载. 我们在 应用程序框架实战十一:创建VS解决 ...
随机推荐
- git使用过程中遇到的错误
1.使用git add "login.py" 然后git commit -m "add url"的时候报错.分支newtype也是存在的 nothing to ...
- windows安装scrapy
1.安装Twisted 直接pip install Twisted 然后报错 error: Microsoft Visual C++ 14.0 is required. Get it with &qu ...
- 为什么js引入页面后不起作用？
为什么js引入页面后不起作用? 例如常见的报错:Uncaught ReferenceError: $ is not defined. 可能出现这种情况的原因如下: 原因一: 引入js的位置不对,应在使 ...
- python--websocket数据解析
# websocket实现原理 ''' 1.服务端开启socket,监听ip和端口 2.客户端发送连接请求(带上ip和端口) 3.服务端允许连接 4.客户端生成一个随机字符串,和magic strin ...
- 【linux高级程序设计】（第十三章）Linux Socket网络编程基础 2
BSD Socket网络编程API 创建socket对象 int socket (int __domain, int __type, int __protocol) :成功返回socket文件描述符, ...
- springBoot Ribbon 负载均衡
1.依赖引用 <!-- 引入关于 eureka-server的依赖 --> <dependency> <groupId>org.springframework.cl ...
- uva12265 贩卖土地 单调栈
输入一个n*m的矩阵,每个格子可能是空地,也可能是沼泽.对于每个空地格子,求出以它为右下角的空矩形的最大周长,然后统计每个周长出现了多少次. 输入包含多组测试数据,第一行输入一个正整数N,表示输入样例 ...
- C++模拟链表
C++模拟链表 简易模拟链表,工厂设计模式.. 注意:请不要在操作时产生环状链表,会造成输出链表时陷入无限循环. #include <iostream> #include <stri ...
- POJ 3977：Subset（折半枚举+二分）
[题目链接] http://poj.org/problem?id=3977 [题目大意] 在n个数(n<36)中选取一些数,使得其和的绝对值最小. [题解] 因为枚举所有数选或者不选,复杂度太高 ...
- stack栈和Queue队列
1.push将对象插入 System.Collections.Generic.Stack<T> 的顶部. Stack st = new Stack(); //栈是先进后出 st.Push( ...