EXCEL表里的数据导入SQL中，简化代码
View Code
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Data.OleDb;
using System.Collections;
using System.IO;
namespace SqlExcel
{
publicpartialclass Form2 : Form
{
public Form2()
{
InitializeComponent();
}
SqlHelper sqlhelper =new SqlHelper();
///
/// 选择excle路径
///
///
///
privatevoid button1_Click(object sender, EventArgs e)
{
using (OpenFileDialog dialog =new OpenFileDialog())
{
dialog.Multiselect =true;
if (dialog.ShowDialog() == DialogResult.OK)
{
try
{
textBox1.Text = dialog.FileName;
}
catch { }
}
}
}
///
/// 先把excle读到Dataset里
///
///文件路径名
///
public DataSet ExecleDs(string filenameurl)
{
string strConn ="Provider=Microsoft.Jet.OleDb.4.0;"+"data source="+ filenameurl +";Extended Properties='Excel 8.0; HDR=YES; IMEX=1'";
OleDbConnection conn =new OleDbConnection(strConn);
OleDbCommand cmd =new OleDbCommand("select * from [Sheet1$]",conn);
OleDbDataAdapter odda =new OleDbDataAdapter(cmd);
DataSet ds =new DataSet();
odda.Fill(ds);
return ds;
}
///
/// 把Dataset里的数据一行一行的插入到数据表里
///
///
///
privatevoid button2_Click(object sender, EventArgs e)
{
int ii =0;
DataSet ds = ExecleDs(textBox1.Text);
System.Data.DataTable dt = ds.Tables[0];
try
{
string strInsertComm;
for (int i =0; i < dt.Rows.Count; i++)
{
strInsertComm ="";
strInsertComm ="Insert INTO T_Student(F_Num,F_Name,F_Sex,F_Dept)";
strInsertComm +=" values(";
for (int j =0; j < dt.Columns.Count; j++)
{
if (j >0)
{
strInsertComm +=",'"+ dt.Rows[i][j].ToString().Trim() +"'";
}
else
{
strInsertComm +="'"+ dt.Rows[i][j].ToString().Trim() +"'";
}
}
strInsertComm +=")";
ii = sqlhelper.getcomnum(strInsertComm);//执行SQL语句
}
if (ii >0)
{
MessageBox.Show("导入成功！");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
EXCEL表里的数据导入SQL中，完整代码（代码是从EXCEL2007导入到数据库的，如果想从2003中导入，则将Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + FilePath + ";Extended Properties='Excel 12.0; HDR=YES; IMEX=1' 改为Provider=Microsoft.ACE.OLEDB.4.0;Data Source=" + FilePath + ";Extended Properties='Excel 8.0; HDR=YES; IMEX=1'）
View Code
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Data.OleDb;
using System.Collections;
using System.IO;
using Excel = Microsoft.Office.Interop.Excel;
using Microsoft.Office.Interop.Excel;
namespace SqlExcel
{
publicpartialclass Form1 : Form
{
public Form1()
{
InitializeComponent();
}
SqlHelper sqlhelper =new SqlHelper();
privatevoid Form1_Load(object sender, EventArgs e)
{
}
#region Excel导入SQL数据库
///
/// 选择要向SQL数据库中导入数据的Excel文件
///
privatevoid btnChoose_Click(object sender, EventArgs e)
{
using (OpenFileDialog dialog =new OpenFileDialog())
{
dialog.Multiselect =true;
if (dialog.ShowDialog() == DialogResult.OK)
{
try
{
txtPath.Text = dialog.FileName;
}
catch { }
}
}
}
///
/// 获取Excel数据表列表
///
///
publicstatic ArrayList GetExcelTables(string FilePath)
{
//将Excel架构存入数据里
System.Data.DataTable dt =new System.Data.DataTable();
ArrayList TablesList =new ArrayList();
if (File.Exists(FilePath))
{
using (OleDbConnection conn =new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Extended Properties=\"Excel 8.0; HDR=YES; IMEX=1\";Data Source="+ FilePath))
{
try
{
conn.Open();
dt = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, newobject[] { null, null, null, "TABLE" });
}
catch (Exception exp)
{
MessageBox.Show(exp.Message);
}
//获取数据表个数
int tablecount = dt.Rows.Count;
for (int i =0; i < tablecount; i = i +2)
{
string tablename = dt.Rows[i][2].ToString().Trim().TrimEnd('$');
if (TablesList.IndexOf(tablename) <0)
{
TablesList.Add(tablename);
}
}
}
}
return TablesList;
}
///
/// 导入Excel数据表至DataTable（第一行作为表头）
///
///
publicstatic System.Data.DataSet FillDataSet(string FilePath)
{
if (!File.Exists(FilePath))
{
thrownew Exception("Excel文件不存在！");
}
ArrayList TableList =new ArrayList();
TableList = GetExcelTables(FilePath);
if (TableList.Count <=0)
{
returnnull;
}
System.Data.DataTable table;
System.Data.DataSet ds =new DataSet();
OleDbConnection dbcon =new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source="+ FilePath +";Extended Properties='Excel 12.0; HDR=YES; IMEX=1'");
try
{
if (dbcon.State == ConnectionState.Closed)
{
dbcon.Open();
}
for (int i =0; i < TableList.Count; i++)
{
string dtname = TableList[i].ToString();
try
{
OleDbCommand cmd =new OleDbCommand("select * from [Sheet1$]", dbcon);
OleDbDataAdapter adapter =new OleDbDataAdapter(cmd);
table =new System.Data.DataTable();
adapter.Fill(table);
ds.Tables.Add(table);
}
catch (Exception exp)
{
MessageBox.Show(exp.Message);
}
}
}
finally
{
if (dbcon.State == ConnectionState.Open)
{
dbcon.Close();
}
}
return ds;
}
///
/// Excel导入数据库
///
///
publicstatic DataSet ImportFromExcel(string FilePath)
{
return FillDataSet(FilePath);
}
///
/// 将Excel中的数据导入到SQL数据库中
///
privatevoid btnExcelToSql_Click(object sender, EventArgs e)
{
int ii =0;
DataSet ds = ImportFromExcel(txtPath.Text);
System.Data.DataTable dt = ds.Tables[0];
try
{
string strInsertComm;
for (int i =0; i < dt.Rows.Count; i++)
{
strInsertComm ="";
strInsertComm ="Insert INTO T_Student(F_Num,F_Name,F_Sex,F_Dept)";
strInsertComm +=" values(";
for (int j =0; j < dt.Columns.Count; j++)
{
if (j >0)
{
strInsertComm +=",'"+ dt.Rows[i][j].ToString().Trim() +"'";
}
else
{
strInsertComm +="'"+ dt.Rows[i][j].ToString().Trim() +"'";
}
}
strInsertComm +=")";
ii = sqlhelper.getcomnum(strInsertComm);
}
if (ii >0)
{
MessageBox.Show("导入成功！");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
#endregion
下面为SQL2005里的数据导出到EXCEL中，先添加excel引用，再加上using Excel = Microsoft.Office.Interop.Excel;
using Microsoft.Office.Interop.Excel;这两个命名空间，代码如下：
View Code
#region sql数据库导出Excel
publicvoid Export(string tableName)
{
DataSet ds1 = sqlhelper.getds("select F_Num as '学 号',F_Name as '姓 名',F_Sex as '性 别',F_Dept as '所有系院' from "+ tableName, tableName);
if (ds1 ==null)
{
MessageBox.Show("系统内部错误！请联系系统开发者！", "出错了：", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
string saveFileName ="";
SaveFileDialog saveDialog =new SaveFileDialog();
saveDialog.DefaultExt ="xls";
saveDialog.Filter ="Excel文件|*.xls";
saveDialog.FileName ="";
saveDialog.ShowDialog();
saveFileName = saveDialog.FileName;
if (saveFileName.IndexOf(":") <0)
{
MessageBox.Show("您取消了导出操作！", "提示信息：", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
return;
}
Microsoft.Office.Interop.Excel.Application xlApp =new Microsoft.Office.Interop.Excel.Application();
object miss = System.Reflection.Missing.Value;
if (xlApp ==null)
{
MessageBox.Show("无法创建Excel对象，可能您的机子未安装Excel！", "出错了：", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
Microsoft.Office.Interop.Excel.Workbooks workbooks = xlApp.Workbooks;
Microsoft.Office.Interop.Excel.Workbook workbook = workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);
Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];//取得sheet1
Microsoft.Office.Interop.Excel.Range range;
//总行数和总列数
long totalRowCount = ds1.Tables[0].Rows.Count;
long totalColCount = ds1.Tables[0].Columns.Count;
//写入第一行表头
for (int i =0; i < totalColCount; i++)
{
worksheet.Cells[1, i +1] = ds1.Tables[0].Columns[i].ColumnName;
range = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[1, i +1];
range.Interior.ColorIndex =15;
range.Font.Size =15;//设定标题的大小
range.Columns.AutoFit();//自动调整报表表格宽度为最适合宽度
range.Font.Bold =true;
}
//写入数值
for (int r =0; r < totalRowCount; r++)
{
for (int i =0; i < totalColCount; i++)
{
worksheet.Cells[r +2, i +1] = ds1.Tables[0].Rows[r][i].ToString();
range = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[r +2, 1];//设置第一列为自动调整宽度
range.Columns.AutoFit();
}
}
range = worksheet.get_Range(worksheet.Cells[2, 1], worksheet.Cells[ds1.Tables[0].Rows.Count +1, ds1.Tables[0].Columns.Count]);
if (totalRowCount >0)
{
range.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlInsideHorizontal].ColorIndex = Microsoft.Office.Interop.Excel.XlColorIndex.xlColorIndexAutomatic;
range.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlInsideHorizontal].LineStyle = Microsoft.Office.Interop.Excel.XlLineStyle.xlContinuous;
range.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlInsideHorizontal].Weight = Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin;
}
if (totalColCount >1)
{
range.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlInsideVertical].ColorIndex = Microsoft.Office.Interop.Excel.XlColorIndex.xlColorIndexAutomatic;
range.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlInsideVertical].LineStyle = Microsoft.Office.Interop.Excel.XlLineStyle.xlContinuous;
range.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlInsideVertical].Weight = Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin;
}
if (range !=null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(range);
range =null;
}
if (worksheet !=null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(worksheet);
worksheet =null;
}
if (saveFileName !="")
{
try
{
workbook.Saved =true;
System.Reflection.Missing missing = System.Reflection.Missing.Value;
workbook.SaveAs(saveFileName, Microsoft.Office.Interop.Excel.XlFileFormat.xlWorkbookNormal, miss, miss, miss, miss,
Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, miss, miss, miss, miss, miss);
MessageBox.Show("导出成功！", "提示信息：", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
}
catch (Exception ex)
{
MessageBox.Show("导出文件错误！请重试！", "出错了：", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
if (workbook !=null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook);
workbook =null;
}
if (workbooks !=null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(workbooks);
workbooks =null;
}
xlApp.Application.Workbooks.Close();
xlApp.Quit();
GC.Collect();
}
privatevoid button1_Click(object sender, EventArgs e)
{
Export("T_Student");
}
#endregion