1 先创建sql帮助类
public class SQLBase
{
#region MD5加密
public string MD5JM(string str)
{
byte[] result = Encoding.Default.GetBytes(str); //tbPass为输入密码的文本框
MD5 md5 = new MD5CryptoServiceProvider();
byte[] output = md5.ComputeHash(result);
string md5_pwd = BitConverter.ToString(output).Replace("-", ""); //
return md5_pwd;
}
#endregion
#region 数据库底层查询方法
#region DataTable转List
private List<T> TableToEntity<T>(DataTable dt) where T : class,new()
{
// 定义集合
List<T> ts = new List<T>();
// 获得此模型的类型
Type type = typeof(T);
//定义一个临时变量
string tempName = string.Empty;
//遍历DataTable中所有的数据行
foreach (DataRow dr in dt.Rows)
{
T t = new T();
// 获得此模型的公共属性
PropertyInfo[] propertys = t.GetType().GetProperties();
//遍历该对象的所有属性
foreach (PropertyInfo pi in propertys)
{
tempName = pi.Name;//将属性名称赋值给临时变量
//检查DataTable是否包含此列（列名==对象的属性名）
if (dt.Columns.Contains(tempName))
{
// 判断此属性是否有Setter
if (!pi.CanWrite) continue;//该属性不可写，直接跳出
//取值
object value = dr[tempName];
//如果非空，则赋给对象的属性
if (value != DBNull.Value)
pi.SetValue(t, value, null);
}
}
//对象添加到泛型集合中
ts.Add(t);
}
return ts;
}
#endregion
#region 通用插入方法
public int InsertModel<T>(T t,string TableName) where T : class,new()
{
PropertyInfo[] propertys = t.GetType().GetProperties();
//遍历该对象的所有属性
string tempName = string.Empty;
// string class_name = t.GetType().Name;
string _sql = "insert into [" + TableName + "] ";
string _sql_1 = "";
string _sql_2 = "";
int _numid = 0;
//再用Type.GetProperties获得PropertyInfo[]
foreach (PropertyInfo pi in propertys)
{
if (_numid == 0)
{
_numid++;
continue;
}
object name = pi.Name;//用pi.GetValue获得值
// 替换Sql注入符
string value1 = Convert.ToString(pi.GetValue(t, null)).Replace("'", "''");
//string dataType = pi.PropertyType.ToString().ToLower();
string properName = name.ToString().ToLower();
if (!string.IsNullOrEmpty(value1) && properName != BaseSet.PrimaryKey.ToLower() && properName != BaseSet.TableName.ToLower() && value1 != BaseSet.DateTimeLongNull && value1 != BaseSet.DateTimeShortNull)
{
// 判断是否为空
if (value1 == BaseSet.NULL)
{
value1 = "";
}
_sql_1 += Convert.ToString(name) + ",";
if (pi.ToString().Contains("Int32") || pi.ToString().Contains("Int64"))
{
_sql_2 += value1 + ",";
}
else if (pi.ToString().Contains("Boolean"))
{
if(value1== "True" || value1 == "true")
{
_sql_2 += "1,";
}
else
{
_sql_2 += "0,";
}
}
else
{
_sql_2 += "'" + value1 + "',";
}
}
}
if (_sql_1.Length > 0)
{
_sql_1 = _sql_1.Substring(0, _sql_1.Length - 1);
} if (_sql_2.Length > 0)
{
_sql_2 = _sql_2.Substring(0, _sql_2.Length - 1);
}
string _sqlover = _sql + " (" + _sql_1 + ") values(" + _sql_2 + ")";
return DBExecuteSql(_sqlover);
}
#endregion
#region 通用插入方法 返回主键
public object GetIDInsertModel<T>(T t,string TableName) where T : class,new()
{
PropertyInfo[] propertys = t.GetType().GetProperties();
//遍历该对象的所有属性
string tempName = string.Empty;
//string class_name = t.GetType().Name;
string _sql = "insert into [" + TableName + "] ";
string _sql_1 = "";
string _sql_2 = "";
int _numid = 0;
//再用Type.GetProperties获得PropertyInfo[]
foreach (PropertyInfo pi in propertys)
{
if (_numid == 0)
{
_numid++;
continue;
}
object name = pi.Name;//用pi.GetValue获得值
// 替换Sql注入符
string value1 = Convert.ToString(pi.GetValue(t, null)).Replace("'", "''");
//string dataType = pi.PropertyType.ToString().ToLower();
string properName = name.ToString().ToLower();
if (!string.IsNullOrEmpty(value1) && properName != BaseSet.PrimaryKey.ToLower() && properName != BaseSet.TableName.ToLower() && value1 != BaseSet.DateTimeLongNull && value1 != BaseSet.DateTimeShortNull)
{
// 判断是否为空
if (value1 == BaseSet.NULL)
{
value1 = "";
}
_sql_1 += Convert.ToString(name) + ",";
if (pi.ToString().Contains("Int32") || pi.ToString().Contains("Int64"))
{
_sql_2 += value1 + ",";
}
else if (pi.ToString().Contains("Boolean"))
{
if (value1 == "True")
{
_sql_2 += "1,";
}
else
{
_sql_2 += "0,";
}
}
else
{
_sql_2 += "'" + value1 + "',";
}
}
}
if (_sql_1.Length > 0)
{
_sql_1 = _sql_1.Substring(0, _sql_1.Length - 1);
} if (_sql_2.Length > 0)
{
_sql_2 = _sql_2.Substring(0, _sql_2.Length - 1);
}
string _sqlover = _sql + " (" + _sql_1 + ") values(" + _sql_2 + ") SELECT @@identity";
return DbHelperSQL.GetSingle(_sqlover);
}
#endregion
#region 通用更新方法(指定字段更新)
/// <summary>
/// 批量更新(更新list)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="TableName"></param>
/// <param name="listcol"></param>
/// <returns></returns>
public int UpdateModel<T>(T t,string TableName, List<string> listcol) where T : class,new()
{
PropertyInfo[] propertys = t.GetType().GetProperties();
//遍历该对象的所有属性
string tempName = string.Empty;
//string class_name = t.GetType().Name;
string _sql = "update " + TableName + " set ";
string _sql_1 = "";//拼接更新字段信息
string _sql_2 = "";//默认拼接查询条件 按第一个的ID
int _numid = 0;
//再用Type.GetProperties获得PropertyInfo[]
foreach (PropertyInfo pi in propertys)
{
object name = pi.Name;//用pi.GetValue获得值
// 替换Sql注入符
string value1 = Convert.ToString(pi.GetValue(t, null)).Replace("'", "''");
//string dataType = pi.PropertyType.ToString().ToLower();
string properName = name.ToString().ToLower();
if (_numid == 0)
{
_numid++;
//拼接where 条件
_sql_2 = " where " + Convert.ToString(name) + "=" + value1;
continue;
}
if (!string.IsNullOrEmpty(value1) && properName != BaseSet.PrimaryKey.ToLower() && properName != BaseSet.TableName.ToLower() && value1 != BaseSet.DateTimeLongNull && value1 != BaseSet.DateTimeShortNull)
{
// 判断是否为空
if (value1 == BaseSet.NULL)
{
value1 = "";
}
if (listcol.Any(l => l == Convert.ToString(name)))
{
if (pi.ToString().Contains("Int32") || pi.ToString().Contains("Int64"))
{
_sql_1 += Convert.ToString(name) + "=" + value1 + ",";
}
else
{
_sql_1 += Convert.ToString(name) + "='" + value1 + "',";
}
}
}
}
if (_sql_1.Length > 0)
{
_sql_1 = _sql_1.Substring(0, _sql_1.Length - 1);
}
string _sqlover = _sql + _sql_1 + _sql_2;
return DBExecuteSql(_sqlover);
}
/// <summary>
/// 批量更新2（更新单个实体-更新指定字段）
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="TableName"></param>
/// <returns></returns>
public int UpdateModel<T>(T t, string TableName) where T : class, new()
{
PropertyInfo[] propertys = t.GetType().GetProperties();
//遍历该对象的所有属性
string tempName = string.Empty;
//string class_name = t.GetType().Name;
string _sql = "update " + TableName + " set ";
string _sql_1 = "";//拼接更新字段信息
string _sql_2 = "";//默认拼接查询条件 按第一个的ID
int _numid = 0;
//再用Type.GetProperties获得PropertyInfo[]
foreach (PropertyInfo pi in propertys)
{
object name = pi.Name;//用pi.GetValue获得值
//替换Sql注入符
string value1 = Convert.ToString(pi.GetValue(t, null)).Replace("'", "''");
string dataType = pi.PropertyType.ToString().ToLower();
string properName = name.ToString().ToLower();
if (_numid == 0)
{
_numid++;
//拼接where 条件
_sql_2 = " where " + Convert.ToString(name) + "=" + value1;
continue;
}
if (!string.IsNullOrEmpty(value1) && properName != BaseSet.PrimaryKey.ToLower() && properName != BaseSet.TableName.ToLower() && value1 != BaseSet.DateTimeLongNull && value1 != BaseSet.DateTimeShortNull)
{
//判断是否为空
if (value1 == BaseSet.NULL)
{
value1 = "";
}
if (pi.ToString().Contains("Int32") || pi.ToString().Contains("Int64"))
{
_sql_1 += Convert.ToString(name) + "=" + value1 + ",";
}
else if (pi.ToString().Contains("Boolean"))
{
if (value1 == "True")
{
_sql_1 += Convert.ToString(name) + "=1,";
}
else
{
_sql_1 += Convert.ToString(name) + "=0,";
}
}
else
{
_sql_1 += Convert.ToString(name) + "='" + value1 + "',";
}
}
}
if (_sql_1.Length > 0)
{
_sql_1 = _sql_1.Substring(0, _sql_1.Length - 1);
}
string _sqlover = _sql + _sql_1 + _sql_2;
return DBExecuteSql(_sqlover);
}
/// <summary>
/// 通用更新(单个对象更新-更新整个实体)
/// </summary>
/// <typeparam name="T">模型</typeparam>
/// <param name="t">更新对象值</param>
/// <returns></returns>
public int Update_Model<T>(T t, string TableName) where T : class,new()
{
PropertyInfo[] propertys = t.GetType().GetProperties();
//遍历该对象的所有属性
string tempName = string.Empty;
//string class_name = t.GetType().Name;
string _sql = "update [" + TableName + "] set ";
string _sql_1 = "";//拼接更新字段信息
string _sql_2 = "";//默认拼接查询条件 按第一个的ID
int _numid = 0;
//再用Type.GetProperties获得PropertyInfo[]
foreach (PropertyInfo pi in propertys)
{
object name = pi.Name;//用pi.GetValue获得值
// 替换Sql注入符
string value1 = Convert.ToString(pi.GetValue(t, null)).Replace("'", "''");
//string dataType = pi.PropertyType.ToString().ToLower();
string properName = name.ToString().ToLower();
if (_numid == 0)
{
_numid++;
//拼接where 条件
_sql_2 = " where " + Convert.ToString(name) + "=" + value1;
continue;
}
if (!string.IsNullOrEmpty(value1) && properName != BaseSet.PrimaryKey.ToLower() && properName != BaseSet.TableName.ToLower() && value1 != BaseSet.DateTimeLongNull && value1 != BaseSet.DateTimeShortNull)
{
// 判断是否为空
if (value1.ToString() == BaseSet.NULL)
{
value1 = "";
}
if (pi.ToString().Contains("Int32") || pi.ToString().Contains("Int64"))
{
if (value1.ToString() == "")
{
value1 = "null";
}
_sql_1 += Convert.ToString(name) + "=" + value1 + ",";
}
else if (pi.ToString().Contains("Boolean"))
{
if (value1 == "True")
{
_sql_1 += Convert.ToString(name) + "=1,";
}
else
{
_sql_1 += Convert.ToString(name) + "=0,";
}
}
else
{
_sql_1 += Convert.ToString(name) + "='" + value1 + "',";
}
}
}
if (_sql_1.Length > 0)
{
_sql_1 = _sql_1.Substring(0, _sql_1.Length - 1);
}
string _sqlover = _sql + _sql_1 + _sql_2;
return DBExecuteSql(_sqlover);
}
#endregion
#region sql 执行
/// <summary>
///
/// </summary>
/// <param name="sql">sql</param>
/// <returns></returns>
public int DBExecuteSql(string sql)
{
return DbHelperSQL.ExecuteSql(sql);
}
public object DBExecuteSql2(string sql)
{
return DbHelperSQL.GetSingle(sql);
}
#endregion
#region 集合查询
/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="tablename"></param>
/// <param name="ziduan"></param>
/// <param name="where"></param>
/// <returns></returns>
public List<T> GetListModel<T>(string tablename, string ziduan, string where) where T : class,new()
{
List<T> ListModel = new List<T>();
StringBuilder strSql = new StringBuilder();
if (ziduan == "")
{
ziduan = "*";
}
strSql.Append("select " + ziduan + " ");
strSql.Append(" FROM " + tablename + " ");
if (where.Trim() != "")
{
strSql.Append(" where " + where);
}
DataSet ds = null;
ds = DbHelperSQL.Query(strSql.ToString());
if (ds != null)
{
ListModel = TableToEntity<T>(ds.Tables[0]);
}
return ListModel;
}
#endregion
#region 获取单个对象
/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="tablename"></param>
/// <param name="ziduan"></param>
/// <param name="where"></param>
/// <returns></returns>
public T GetModel<T>(string tablename, string ziduan, string where) where T : class,new()
{
List<T> ListModel = new List<T>();
StringBuilder strSql = new StringBuilder();
if (ziduan == "")
{
ziduan = "*";
}
strSql.Append("select top(1)" + ziduan + " ");
strSql.Append(" FROM " + tablename + " ");
if (where.Trim() != "")
{
strSql.Append(" where " + where);
}
DataSet ds = null;
ds = DbHelperSQL.Query(strSql.ToString());
if (ds != null)
{
ListModel = TableToEntity<T>(ds.Tables[0]);
}
if (ListModel != null && ListModel.Count > 0)
{
return ListModel[0];
}
else
{
return null;
}
}
#endregion
#region 分页查询
/// <summary>
///
/// </summary>
/// <typeparam name="T">实体</typeparam>
/// <param name="tablename">表名</param>
/// <param name="ziduan">查询字段</param>
/// <param name="strWhere"></param>
/// <param name="orderby">排序</param>
/// <param name="startIndex"></param>
/// <param name="endIndex"></param>
/// <returns></returns>
public List<T> GetListPageWhere<T>(string tablename, string ziduan, string strWhere, string orderby, int startIndex, int endIndex) where T : class,new()
{
List<T> ListModel = new List<T>();
StringBuilder strSql = new StringBuilder();
strSql.Append("SELECT " + ziduan + " FROM ( ");
strSql.Append(" SELECT ROW_NUMBER() OVER (");
if (!string.IsNullOrEmpty(orderby.Trim()) && !orderby.Contains("CHARINDEX"))
{
strSql.Append("order by T." + orderby);
}
else if (!string.IsNullOrEmpty(orderby.Trim()) && orderby.Contains("CHARINDEX"))
{
strSql.Append("order by " + orderby);// CHARINDEX('河北废金属回收',T.gq_title) asc
}
else
{
// strSql.Append("order by T.gq_id desc");
}
strSql.Append(")AS Row, T.* from " + tablename + " T ");
if (!string.IsNullOrEmpty(strWhere.Trim()))
{
strSql.Append(" WHERE " + strWhere);
}
strSql.Append(" ) TT");
strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
DataSet ds = null;
ds = DbHelperSQL.Query(strSql.ToString());
if (ds != null)
{
ListModel = TableToEntity<T>(ds.Tables[0]);
}
return ListModel;
}
public List<T> GetListPageWhere<T>(out int total, string tablename, string ziduan, string strWhere, string orderby, int startIndex, int endIndex) where T : class,new()
{
List<T> ListModel = new List<T>();
StringBuilder strSql = new StringBuilder();
strSql.Append("SELECT " + ziduan + " FROM ( ");
strSql.Append(" SELECT ROW_NUMBER() OVER (");
if (!string.IsNullOrEmpty(orderby.Trim()) && !orderby.Contains("CHARINDEX"))
{
strSql.Append("order by T." + orderby);
}
else if (!string.IsNullOrEmpty(orderby.Trim()) && orderby.Contains("CHARINDEX"))
{
strSql.Append("order by " + orderby);
}
strSql.Append(")AS Row, T.* from " + tablename + " T ");
if (!string.IsNullOrEmpty(strWhere.Trim()))
{
strSql.Append(" WHERE 1=1 " + strWhere);
}
strSql.Append(" ) TT");
strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
DataSet ds = null;
ds = DbHelperSQL.Query(strSql.ToString());
if (ds != null)
{
ListModel = TableToEntity<T>(ds.Tables[0]);
total = GetListRecordCount(tablename, strWhere);
}
else
{
total = 0;
}
return ListModel;
}
/// <summary>
/// 获取条件分页数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="total"></param>
/// <param name="tablename"></param>
/// <param name="ziduan"></param>
/// <param name="strWhere"></param>
/// <param name="orderby"></param>
/// <param name="startIndex"></param>
/// <param name="endIndex"></param>
/// <returns></returns>
public List<T> GetListPageWhereTow<T>(out int total, string tablename, string ziduan, string strWhere, string orderby, int startIndex, int endIndex) where T : class, new()
{
List<T> ListModel = new List<T>();
StringBuilder strSql = new StringBuilder();
strSql.Append("SELECT * FROM ( ");
strSql.Append(" SELECT ROW_NUMBER() OVER (");
if (!string.IsNullOrEmpty(orderby.Trim()) && !orderby.Contains("CHARINDEX"))
{
strSql.Append("order by T." + orderby);
}
else if (!string.IsNullOrEmpty(orderby.Trim()) && orderby.Contains("CHARINDEX"))
{
strSql.Append("order by T." + orderby);
}
strSql.Append(")AS Row, * from ( select " + ziduan + " from "+tablename+" ");
if (!string.IsNullOrEmpty(strWhere.Trim()))
{
strSql.Append(" WHERE 1=1 " + strWhere);
}
strSql.Append(")T ) TT");
strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
DataSet ds = null;
ds = DbHelperSQL.Query(strSql.ToString());
if (ds != null)
{
ListModel = TableToEntity<T>(ds.Tables[0]);
total = GetListRecordCount(tablename, strWhere);
}
else
{
total = 0;
}
return ListModel;
}
#endregion
#region 获取查询总条数
/// <summary>
/// 获取查询总条数
/// </summary>
/// <param name="tablename">表名</param>
/// <param name="strWhere">查询条件</param>
/// <returns></returns>
public int GetListRecordCount(string tablename, string strWhere)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select count(1) FROM " + tablename + " ");
if (strWhere.Trim() != "")
{
strSql.Append(" where 1=1 " + strWhere);
}
object obj = null;
obj = DbHelperSQL.GetSingle(strSql.ToString());
if (obj == null)
{
return 0;
}
else
{
return Convert.ToInt32(obj);
}
}
#endregion
#endregion
#region 获取自定义页码分页的算法
/// <summary>
///
/// </summary>
/// <param name="pcount">总页数</param>
/// <param name="index">当前页</param>
/// <param name="num">显示几个页</param>
/// <returns></returns>
public List<int> GetScodPageParam(int pcount, int index, int num)
{
List<int> listp = new List<int>();
listp.Add(1);//首页
//上一页
int temp = index - 1; if (temp == 0) { temp = 1; }
listp.Add(temp);
int page_count = num;
if (pcount < num)//当设定页数超出了总页数
{
num = pcount;
page_count = pcount;
}
int p_index = pcount - page_count;
int f = 0;//设定页奇偶数区分变量
if (num % 2 == 1)//判断奇偶数
{
f = 1;
}
for (int i = 1; i <= page_count; i++)
{
if (index <= (num / 2 + f))//当前页小于等于设定页的中间页 按1-num 排列
{
listp.Add(i);
}
else if ((index > (num / 2 + f)))//当前页大于设定页的中间页 则累加滚动+i
{
//公式： i+当前页-((设定页/2)+f)
if ((index + (num / 2 + f)) > pcount)//当前页即将超出总页数时 按最后页排列
{
listp.Add(i + pcount - 2 * (num / 2 + f) + f);//取最后一组分页的中间数:(总页数-(设定页/2+f)+f)
}
else
{
listp.Add(i + index - (num / 2 + f));
}
}
}
temp = index + 1; if (temp > pcount) { temp = pcount; }
//下一页
listp.Add(temp);
//尾页
listp.Add(pcount);//
return listp;
}
#endregion
#region 集合转json 字符串
private string ListToJsonString<T>(List<T> list) where T : class,new()
{
char[] specialChars = new char[] { ',' };
string JSONstring = "[";
T t = new T();
int index = 0;
foreach (var item in list)
{
JSONstring += "{";
PropertyInfo[] propertys = item.GetType().GetProperties();
foreach (var prop in propertys)
{
JSONstring += "\"" + prop.Name + "\":\"" + prop.GetValue(item, null) + "\",";
}
JSONstring = JSONstring.TrimEnd(specialChars);
JSONstring += "},";
index++;
}
JSONstring = JSONstring.TrimEnd(specialChars);
JSONstring += "]";
return JSONstring;
}
#endregion
#region 分页(过时)
分页方法
//public int FunPage2<T>(int? Page, string tablename, string ziduan, string strWhere, string orderBy) where T : class,new()
//{
// int pageIndex = 1;//当前
// int _star = 0;
// List<int> listp = null;
// if (Page != null)
// {
// pageIndex = Page.Value;
// }
// int pageSize = 5;//每页数
// int count = GetListRecordCount(tablename, strWhere);
// int pcount = count / pageSize;//总页数
// if (count % pageSize > 0)
// {
// pcount++;
// }
// _star = (pageIndex - 1) * pageSize + 1;
// var links = GetListPageWhere<T>(tablename, ziduan, strWhere, orderBy, _star, _star + pageSize - 1);
// listp = GetScodPageParam(pcount, pageIndex, 5);//分页参数
// if (links.Count == 0 && Page > 1)
// {
// Page = Page - 1;
// Response.Redirect("?Page=" + Page);
// }
// ViewBag.count = count;//总数
// ViewBag.links = links;//集合
// ViewBag.listp = listp;
// ViewBag.Page = Page;//当前页
// return count;
//}
//public int gq_cf//获取刷新次数
//{
// get { return Session["gq_cf"] == null ? 0 : Convert.ToInt32(Session["gq_cf"]); }
// set { Session["gq_cf"] = value; }
//}
#endregion
#region 创建时间范围条件
/// <summary>
/// 创建时间范围条件
/// </summary>
public string CreateTimeWhereStr(string StartEndDate, string FieldNames, string _where, string prefix = null)
{
if (!string.IsNullOrEmpty(StartEndDate) && StartEndDate != " ~ ")
{
if (StartEndDate.Contains("~"))
{
if (StartEndDate.Contains("+"))
{
StartEndDate = StartEndDate.Replace("+", "");
}
var dts = StartEndDate.Split('~');
var start = dts[0].Trim();
var end = dts[1].Trim();
if (!string.IsNullOrEmpty(start))
{
if (!string.IsNullOrEmpty(prefix))
{
_where += string.Format(" and {1}{2}>='{0} 00:00:00'", start, prefix, FieldNames);
}
else
{
_where += string.Format(" and {1}>='{0} 00:00:00'", start, FieldNames);
}
}
if (!string.IsNullOrEmpty(end))
{
if (!string.IsNullOrEmpty(prefix))
{
_where += string.Format(" and {1}{2}<='{0} 23:59:59'", end, prefix, FieldNames);
}
else
{
_where += string.Format(" and {1}<='{0} 23:59:59'", end, FieldNames);
}
}
}
}
return _where;
}
#endregion
#region 随机数
<summary>
/// 生成验证码
/// </summary>
/// <param name="length">指定验证码的长度</param>
/// <returns></returns>
public string CreateValidateCode(int length)
{
int[] randMembers = new int[length];
int[] validateNums = new int[length];
string validateNumberStr = "";
//生成起始序列值
int seekSeek = unchecked((int)DateTime.Now.Ticks);
Random seekRand = new Random(seekSeek);
int beginSeek = (int)seekRand.Next(0, Int32.MaxValue - length * 10000);
int[] seeks = new int[length];
for (int i = 0; i < length; i++)
{
beginSeek += 10000;
seeks[i] = beginSeek;
}
//生成随机数字
for (int i = 0; i < length; i++)
{
Random rand = new Random(seeks[i]);
int pownum = 1 * (int)Math.Pow(10, length);
randMembers[i] = rand.Next(pownum, Int32.MaxValue);
}
//抽取随机数字
for (int i = 0; i < length; i++)
{
string numStr = randMembers[i].ToString();
int numLength = numStr.Length;
Random rand = new Random();
int numPosition = rand.Next(0, numLength - 1);
validateNums[i] = Int32.Parse(numStr.Substring(numPosition, 1));
}
//生成验证码
for (int i = 0; i < length; i++)
{
validateNumberStr += validateNums[i].ToString();
}
return validateNumberStr;
}
#endregion
#region sql查询获取DataTable
/// <summary>
/// sql查询
/// </summary>
/// <param name="sql">sql语句</param>
/// <returns></returns>
public DataTable GetDataTable(string sql)
{
return DbHelperSQL.Query(sql).Tables[0];
}
#endregion
#region sql查询获取list<T>
/// <summary>
/// sql查询
/// </summary>
/// <param name="sql">sql语句</param>
/// <returns></returns>
public List<T> GetListModel<T>(string sql) where T : class, new()
{
List<T> ListModel = new List<T>();
DataSet ds = DbHelperSQL.Query(sql);
if (ds != null)
{
ListModel = TableToEntity<T>(ds.Tables[0]);
}
return ListModel;
}
#endregion
#region 开一个事务添加图集
public int ExecuteImgTran(QX_Member_archives_APImodel model, ref int newid)
{
return DbHelperSQL.ExecuteImgTran(model, ref newid);
}
#endregion
public int editImg(QX_Member_archives_APImodel model)
{
return DbHelperSQL.editImg(model);
}
}
public class BaseSet
{
public static string NULL
{
get { return "@null"; }
}
public static string DateTimeShortNull
{
get { return "1970-01-01 0:00:00"; }
}
public static string DateTimeLongNull
{
get { return "1970-01-01 00:00:00"; }
}
public static string PrimaryKey
{
get { return "PrimaryKey"; }
}
public static string TableName
{
get { return "TableName"; }
}
}2 在逻辑处理层和dal层可以直接访问帮助类