using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.Odbc;
using System.Data.OleDb;
using System.Data.SqlClient;
using System.IO; /// <summary>
/// 读取数据并返回数据集
/// </summary>
public class ReadData
{
private string filename = null;//文件名
private string filepath = null;//路径
public ReadData()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
/// <summary>
/// 初始化文件路径
/// </summary>
/// <param name="cfilepath">文件路径</param>
/// <param name="cfilename">文件名称</param>
public ReadData(string cfilepath, string cfilename)
{
filename = cfilename;
filepath = cfilepath;
}
/// <summary>
/// 读取csv格式文件
/// </summary>
/// <param name="sqlstr">sql语句</param>
/// <returns></returns>
public DataSet Readcsv(string sqlstr)
{
DataSet ds = new DataSet();
string strcon = @"Driver={Microsoft Text Driver (*.txt; *.csv)};Dbq=" + filepath + ";Extensions=asc,csv,tab,txt";//IMEX=1数据以文本读取
using (OdbcConnection odbccon = new OdbcConnection(strcon))
{
odbccon.Open();
OdbcCommand odbccom = new OdbcCommand();
odbccom.Connection = odbccon;
odbccom.CommandText = sqlstr;
OdbcDataAdapter odbcda = new OdbcDataAdapter(odbccom);
odbcda.Fill(ds);
odbccon.Close();
}
return ds;
}
/// <summary>
///
/// </summary>
/// <param name="sqlstr">sql语句读取数据</param>
/// <param name="c">表的列标</param>
/// <param name="s1">开始位置</param>
/// <param name="s2">结束位置</param>
/// <returns></returns>
public DataSet Readcsv(string sqlstr, int c, string s1, string s2)
{
DataSet ds = new DataSet();
DataTable dt = new DataTable();
DataRow dr;
DataColumn dc;
string strcon = @"Driver={Microsoft Text Driver (*.txt; *.csv)};Dbq=" + filepath + ";Extensions=asc,csv,tab,txt";//IMEX=1数据以文本读取
using (OdbcConnection odbccon = new OdbcConnection(strcon))
{
odbccon.Open();
OdbcCommand odbccom = new OdbcCommand();
odbccom.Connection = odbccon;
odbccom.CommandText = sqlstr;
OdbcDataReader odbcdr = odbccom.ExecuteReader();
for (int i = ; i < odbcdr.FieldCount; i++)
{
dc = new DataColumn();
dc.ColumnName = odbcdr.GetName(i);
dc.DataType = odbcdr.GetFieldType(i);
dt.Columns.Add(dc);
}
bool flag = false;
if (c == )
{
while (odbcdr.Read())
{
if (Convert.ToDateTime(s1) <= Convert.ToDateTime(odbcdr[c].ToString()))
{
flag = true;
break;
}
}
if (flag)
{
do
{
dr = dt.NewRow();
for (int j = ; j < odbcdr.FieldCount; ++j)
{
dr[j] = odbcdr[j];
}
dt.Rows.Add(dr);
if (Convert.ToDateTime(s2) <= Convert.ToDateTime(odbcdr[c].ToString()))
{ break; }
}
while (odbcdr.Read());
odbccon.Close();
ds.Tables.Add(dt);
}
}
else
{
while (odbcdr.Read())
{
if (s1 == odbcdr[c].ToString().Trim())
{
flag = true;
break;
}
}
if (flag)
{
do
{
dr = dt.NewRow();
for (int j = ; j < odbcdr.FieldCount; ++j)
{
dr[j] = odbcdr[j];
}
dt.Rows.Add(dr);
if (s2 == odbcdr[c].ToString().Trim())
{
break;
}
}
while (odbcdr.Read());
odbccon.Close();
ds.Tables.Add(dt);
}
//Response.Write("<script> alert('输入时间错误!') </script>");
}
}
return ds;
}
/// <summary>
/// 读取csv格式文件
/// </summary>
/// <param name="sqlstr"></param>
/// <param name="c"></param>
/// <param name="s1"></param>
/// <param name="s2"></param>
/// <param name="node">节点</param>
/// <returns></returns>
public DataSet Readcsv(string sqlstr, int c, string s1, string s2, string node)
{
DataSet ds = new DataSet();
DataTable dt = new DataTable();
DataRow dr;
DataColumn dc;
string strcon = @"Driver={Microsoft Text Driver (*.txt; *.csv)};Dbq=" + filepath + ";Extensions=asc,csv,tab,txt";//IMEX=1数据以文本读取
using (OdbcConnection odbccon = new OdbcConnection(strcon))
{
odbccon.Open();
OdbcCommand odbccom = new OdbcCommand();
odbccom.Connection = odbccon;
odbccom.CommandText = sqlstr;
OdbcDataReader odbcdr = odbccom.ExecuteReader();
for (int i = ; i < odbcdr.FieldCount; i++)
{
dc = new DataColumn();
dc.ColumnName = odbcdr.GetName(i);
dc.DataType = odbcdr.GetFieldType(i);
dt.Columns.Add(dc);
}
bool flag = false;
if (c == )
{
while (odbcdr.Read())
{
if (node == odbcdr[].ToString().Trim().Remove()&&Convert.ToDateTime(s1) <= Convert.ToDateTime(odbcdr[c].ToString()))
{
flag = true;
break;
}
}
if (flag)
{
do
{
if (node == odbcdr[].ToString().Trim().Remove())
{
dr = dt.NewRow();
for (int j = ; j < odbcdr.FieldCount; ++j)
{
dr[j] = odbcdr[j];
}
dt.Rows.Add(dr);
}
if (Convert.ToDateTime(s2) <= Convert.ToDateTime(odbcdr[c].ToString()))
{ break; }
}
while (odbcdr.Read());
odbccon.Close();
ds.Tables.Add(dt);
}
}
else
{
while (odbcdr.Read())
{
if (s1 == odbcdr[c].ToString().Trim() && node == odbcdr[].ToString().Trim().Remove())
{
flag = true;
break;
}
}
if (flag)
{
do
{
if (node == odbcdr[].ToString().Trim().Remove())
{
dr = dt.NewRow();
for (int j = ; j < odbcdr.FieldCount; ++j)
{
dr[j] = odbcdr[j];
}
dt.Rows.Add(dr);
}
if (s2 == odbcdr[c].ToString().Trim())
{
break;
}
}
while (odbcdr.Read());
odbccon.Close();
ds.Tables.Add(dt);
}
//Response.Write("<script> alert('输入时间错误!') </script>");
}
}
return ds;
}
/// <summary>
/// 读取xls格式文件
/// </summary>
/// <param name="sqlstr">sql语句</param>
/// <returns></returns>
public DataSet Readxls(string sqlstr)
{
DataSet ds = new DataSet();
string path = Path.Combine(filepath, filename + ".xls");
string strcon = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path + ";Extended Properties=Excel 8.0";//IMEX=1数据以文本读取
using (OleDbConnection oledbcon = new OleDbConnection(strcon))
{
oledbcon.Open();
OleDbCommand oledbcom = new OleDbCommand();
oledbcom.Connection = oledbcon;
oledbcom.CommandText = sqlstr;
OleDbDataAdapter oledbda = new OleDbDataAdapter(oledbcom);
oledbda.Fill(ds);
oledbcon.Close();
}
return ds;
}
/// <summary>
///
/// </summary>
/// <param name="sqlstr">sql语句读取数据</param>
/// <param name="c">表的列标</param>
/// <param name="s1">开始位置</param>
/// <param name="s2">结束位置</param>
/// <returns></returns>
public DataSet Readxls(string sqlstr, int c, string s1, string s2)
{
DataSet ds = new DataSet();
DataTable dt = new DataTable();
DataRow dr;
DataColumn dc;
string path = Path.Combine(filepath, filename + ".xls");
string strcon = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path + ";Extended Properties=Excel 8.0";//IMEX=1数据以文本读取
using (OleDbConnection odbccon = new OleDbConnection(strcon))
{
odbccon.Open();
OleDbCommand odbccom = new OleDbCommand();
odbccom.Connection = odbccon;
odbccom.CommandText = sqlstr;
OleDbDataReader odbcdr = odbccom.ExecuteReader();
for (int i = ; i < odbcdr.FieldCount; i++)
{
dc = new DataColumn();
dc.ColumnName = odbcdr.GetName(i);
dc.DataType = odbcdr.GetFieldType(i);
dt.Columns.Add(dc);
}
bool flag = false;
while (odbcdr.Read())
{
if (s1 == odbcdr[c].ToString().Trim())
{
flag = true;
break;
}
}
if (flag)
{
while (odbcdr.Read())
{
dr = dt.NewRow();
for (int j = ; j < odbcdr.FieldCount; ++j)
{
dr[j] = odbcdr[j];
}
dt.Rows.Add(dr);
if (s2 == odbcdr[c].ToString().Trim())
{
break;
}
}
odbccon.Close();
ds.Tables.Add(dt);
}
else { return null; }//Response.Write("<script> alert('输入时间错误!') </script>");
}
return ds;
}
/// <summary>
/// 读取sql数据库文件
/// </summary>
/// <param name="sqlstr">sql语句</param>
/// <returns></returns>
public DataSet ReadSql(string sqlstr)
{
DataSet ds = new DataSet();
//string strcon = @"uid=sa;password=123456;initial catalog=data;Server=.;Connect Timeout=30";
string strcon = @"Trusted_connection=SSPI;initial catalog=data;Server=.";
using (SqlConnection sqlcon = new SqlConnection(strcon))
{
sqlcon.Open();
SqlCommand sqlcom = new SqlCommand();
sqlcom.Connection = sqlcon;
sqlcom.CommandText = sqlstr;
SqlDataAdapter sqlda = new SqlDataAdapter(sqlcom);
sqlda.Fill(ds);
sqlcon.Close();
}
return ds;
}
/// <summary>
/// 把数据集中的数据导入sql数据库
/// </summary>
/// <param name="ds">导入的数据集</param>
/// <param name="tablename">表名</param>
public void DataToSql(DataSet ds, string tablename)
{
//string strcon = @"uid=sa;password=123456;initial catalog=data;Server=.;Connect Timeout=30";
string strcon = @"Trusted_connection=SSPI;initial catalog=data;Server=.";
using (SqlConnection sqlcon = new SqlConnection(strcon))
{
sqlcon.Open();
SqlCommand sqlcom = new SqlCommand();
sqlcom.Connection = sqlcon;
for (int i = ; i < ds.Tables[].Rows.Count; ++i)
{
sqlcom.CommandText = "insert into " + tablename + " values('" + Convert.ToDateTime(ds.Tables[].Rows[i][]) + " ','" + ds.Tables[].Rows[i][] + " ','" + ds.Tables[].Rows[i][] + " ','" + ds.Tables[].Rows[i][] + " ')";
sqlcom.ExecuteNonQuery();
}
sqlcon.Close();
}
}
/// <summary>
/// 初始化路径
/// </summary>
public void clear()
{
filename = null;
filepath = null;
}
}

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