using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Collections;
using System.Windows.Forms;
using System.Data.OleDb;
using System.Data.Common;
using System.Data.SqlClient;
public partial class Excel导入_Default : System.Web.UI.Page
{
private static string filename;
private static string savePath;
private static DataSet ds; //要插入的数据
private static DataTable dt;
protected void Page_Load(object sender, EventArgs e)
{
}
//上传文件到指定的服务器
protected void Button1_Click1(object sender, EventArgs e)
{
filename = this.fileUploadExcel.FileName;
//savePath必须包含表名在内的所有路径名
savePath = @"G:\项目组文件\项目.net学习资料\工程\Health\Excel导入\Files\" + this.fileUploadExcel.FileName; //上传服务器文件的存储，存在当前新建的文件夹
this.fileUploadExcel.SaveAs(savePath);
Boolean judge_excel = Judge_Excel();
if (!judge_excel)
{
MessageBox.Show("上传的不是excel文件", "标题", MessageBoxButtons.OKCancel, MessageBoxIcon.Error);
return;
}
else
MessageBox.Show("上传文件成功", "标题", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
//测试，将excel中的sheet1导入到sqlserver中
//string connString = "server=localhost;uid=sa;pwd=sqlgis;database=master";
//System.Windows.Forms.OpenFileDialog fd = new OpenFileDialog();
//if (fd.ShowDialog() == DialogResult.OK)
//{
// //TransferData(fd.FileName, "sheet1", connString);
//}
}
//判断文件是否是excel文件函数
protected Boolean Judge_Excel()
{
string fileExtend = System.IO.Path.GetExtension(this.fileUploadExcel.FileName);
if (fileExtend == ".xlsx" || fileExtend == ".xls")
return true;
else
return false;
}
//获取excel数据按钮的触发,
protected void Button2_Click(object sender, EventArgs e)
{
ExcelToDataSet();
MessageBox.Show("获取数据成功", "标题", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
}
//从excel表中获取数据的函数
public void ExcelToDataSet()
{
string strConn = "Provider = Microsoft.Jet.OLEDB.4.0 ; Data Source = " + savePath + ";Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=1\"";
OleDbConnection conn = new OleDbConnection(strConn); //连接excel
if (conn.State.ToString() == "Open")
{
conn.Close();
}
conn.Open(); //外部表不是预期格式，不兼容2010的excel表结构
string s = conn.State.ToString();
OleDbDataAdapter myCommand = null;
ds = null;
/*DataTable yTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new Object[] { null, null, null, "TABLE" });//获取表的框架,几行几列
string tableName = yTable.Rows[0]["filename"].ToString(); //表示的是几行几列
string strSel = "select * from [" + filename + "]";//xls */
string strExcel = "select * from [sheet1$]"; //如果有多个sheet表时可以选择是第几张sheet表
myCommand = new OleDbDataAdapter(strExcel, conn);//用strExcel初始化myCommand，查看myCommand里面的表的数据？？
ds = new DataSet();
myCommand.Fill(ds); //把表中的数据存放在ds(dataSet)
conn.Close();
try
{
dt = ds.Tables[0];
this.dataGridView1.DataSource = dt;
}
catch (Exception err)
{
MessageBox.Show("操作失败！" + err.ToString());
}
}
//excel导入数据库sql的按钮触发
protected void Button3_Click(object sender, EventArgs e)
{
//string path = @"D:\数据库SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\DATA\Test.mdf";
string connString = "server=localhost;uid=sa;pwd=1234;database=Test"; //连接数据库的路径方法
//String connString=@"server=localhost;uid=sa;pwd=1234;database=D:\数据库SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\DATA\Test.mdf";
SqlConnection conn = new SqlConnection(connString);
conn.Open();
DataRow dr = null;
int C_Count = dt.Columns.Count;//获取列数
for (int i = 0; i < dt.Rows.Count; i++) //记录表中的行数，循环插入
{
dr = dt.Rows[i];
insertToSql(dr, C_Count, conn);
}
conn.Close();
if (dataGridView1.Rows.Count > 0) //把数据库表中的数据显示到表中，可判断有没有数据
{
MessageBox.Show("导入成功！");
}
else
{
MessageBox.Show("没有数据！");
}
}
//使用bcp，不容易出错而且效率高
/*try
{
using (System.Data.SqlClient.SqlBulkCopy bcp = new System.Data.SqlClient.SqlBulkCopy(connString))
{
bcp.SqlRowsCopied += new System.Data.SqlClient.SqlRowsCopiedEventHandler(bcp_SqlRowsCopied);
bcp.BatchSize = 100;//每次传输的行数
bcp.NotifyAfter = 100;//进度提示的行数
bcp.DestinationTableName = savePath;//目标表
bcp.WriteToServer(ds.Tables[0]);
}
}
catch
{
System.Windows.Forms.MessageBox.Show(ex.Message);
}*/
//插入数据库的函数
protected void insertToSql(DataRow dr, int column_count, SqlConnection conn)
{
//excel表中的列名和数据库中的列名一定要对应
string name = dr[0].ToString();//需要把内个列都列出来
string age = dr[1].ToString();
string sex = dr[2].ToString();
//当数据库中有多个表时，怎么分辨插入的表
string sql = "insert into 客户 values('" + name + "','" + age + "','" + sex + "')";
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.ExecuteNonQuery();
}
//从excel表中获取数据并存在
// protected void ImportFromExcel()
// {
// string execelConnectionStr = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=filename;
// Extended Properties=""Excel 8.0;HDR=YES;IMEX=1\""";//表第一行是标题，不做为数据使用, Excel 档案只能用来做“读取”用途。
// ds = new DataSet();
// string connString = "Provider = Microsoft.Jet.OLEDB.4.0 ; Data Source = "
// + savePath + ";Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=1\"";
// DataTable table = OleDbHelper.GetExcelTables(connString);
// if (table == null || table.Rows.Count <= 0)
// {
// return;
// }
// foreach (DataRow dr in table.Rows)
// {
// string cmdText = "select * from [" + dr["TABLE_NAME"].ToString() + "]";
// DataTable dt = OleDbHelper.FillDataTable(connString, cmdText);
// dt.TableName = dr["TABLE_NAME"].ToString();
// ds.Tables.Add(dt);
// }
// }
}
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