最近做一个安卓app，需要将别人提供的excel表导入到本地，由于数据是一次性定好的，不会有变化，用app直接读取excel太麻烦，就写了个winform小程序，读取Excel文件生成导入的sql语句，代码比较简单，但是比较使用，分享出来有需要的可以看看
using System;using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.windows.Forms;
using System.IO;
using NPOI.HSSF.UserModel;
using NPOI.SS.UserModel;
using NPOI.HPSF;
namespace ExcelToSqlTool
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
HSSFWorkbook hssfworkbook;
private void button1_Click(object sender, EventArgs e)
{
if (textBox2.Text.Trim() == "") {
MessageBox.Show("请输入生成sql的表名称！");
textBox2.Focus();
return;
}
openFileDialog1.ShowDialog();
string filePath = openFileDialog1.FileName;
if (filePath.Trim() == "") {
return;
}
if (!File.Exists(filePath)) {
MessageBox.Show("文件不存在！");
return;
}
label1.Text = "选中文件：" + filePath;
InitializeWorkbook(filePath);
DataTable dt = ConvertToDataTable();
if (dt.Rows.Count < 2) {
MessageBox.Show("Excel表中至少需要有两条数据！");
return;
}
if (dt.Select(dt.Columns[dt.Columns.Count - 1].ColumnName + " is null ").Length == dt.Rows.Count) {
dt.Columns.RemoveAt(dt.Columns.Count-1);
}
textBox1.Text = dataTableToSql(dt);
}
private string dataTableToSql(DataTable dt) {
StringBuilder sb = new StringBuilder();
for (int i =1;i < dt.Rows.Count;i++) {
DataRow row = dt.Rows[i];
sb.Append("insert into ");
sb.Append(textBox2.Text);
sb.Append("(");
string columns = "";
string values = "";
foreach (DataColumn column in dt.Columns)
{
columns += column.ColumnName;
columns += ",";
values += "'";
values += row[column.ColumnName];
values += "'";
values += ",";
}
columns = columns.TrimEnd(',');
values = values.TrimEnd(',');
sb.Append(columns);
sb.Append(")");
sb.Append(" values (");
sb.Append(values);
sb.Append(");");
sb.Append("\r\n");
}
return sb.ToString();
}
void InitializeWorkbook(string path)
{
//read the template via FileStream, it is suggested to use FileAccess.Read to prevent file lock.
//book1.xls is an Excel-2007-generated file, so some new unknown BIFF records are added.
using (FileStream file = new FileStream(path, FileMode.Open, FileAccess.Read))
{
hssfworkbook = new HSSFWorkbook(file);
}
}
DataTable ConvertToDataTable()
{
ISheet sheet = hssfworkbook.GetSheetAt(0);
System.Collections.IEnumerator rows = sheet.GetRowEnumerator();
DataTable dt = new DataTable();
for (int j = 0; j < 5; j++)
{
dt.Columns.Add(Convert.ToChar(((int)'A') + j).ToString());
}
while (rows.MoveNext())
{
IRow row = (HSSFRow)rows.Current;
DataRow dr = dt.NewRow();
for (int i = 0; i < row.LastCellNum; i++)
{
ICell cell = row.GetCell(i);
if (cell == null)
{
dr[i] = null;
}
else
{
dr[i] = cell.ToString();
}
}
dt.Rows.Add(dr);
}
return dt;
}
}
}
附上源码下载地址：
源码下载地址
注：读取Excel用的NPOI的库，好像只能用Excel2003