使用C#對Excel進行讀寫操作(NPOI)以及使用EF對Mysql進行CURD
阿新 • • 發佈:2019-01-26
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 NPOI.HSSF.UserModel; using System.IO; using NPOI.HSSF.Record.Formula.Functions; namespace MysqlWinform { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void skinButton1_Click(object sender, EventArgs e) { //using (FileStream fs = new FileStream(@"C:\Users\Administrator\Desktop\Excel\goodstype1.xls", FileMode.Open, FileAccess.Read)) //{ // HSSFWorkbook work = new HSSFWorkbook(fs); // HSSFSheet sheet = work.GetSheetAt(0); // HSSFRow row = null; // goodstype gt = null; // zlyfmallEntities db = new zlyfmallEntities(); // for (int i = 1; i <= sheet.LastRowNum; i++) // { // row = sheet.GetRow(i); // gt = new goodstype(); // gt.tname = row.GetCell(0).ToString(); // gt.status = int.Parse(row.GetCell(1).ToString()); // db.goodstype.Add(gt); // } // db.SaveChanges(); //} } private void skinButton2_Click(object sender, EventArgs e) { using (FileStream fs = new FileStream(@"c:\users\administrator\desktop\excel\goods_classone.xls", FileMode.Open, FileAccess.Read)) { HSSFWorkbook work = new HSSFWorkbook(fs); HSSFSheet sheet = work.GetSheetAt(0); zlyfmallEntities2 db = new zlyfmallEntities2(); HSSFRow row = null; goodsclasstwo gco = null; for (int i = 1; i <= 95; i++) { row = sheet.GetRow(i); gco = new goodsclasstwo(); gco.tname = row.GetCell(0).ToString(); gco.father = int.Parse(row.GetCell(1).ToString()); gco.status = 1; db.goodsclasstwo.Add(gco); } db.SaveChanges(); MessageBox.Show("插入成功"); } } private void skinButton1_Click_1(object sender, EventArgs e) { } private void skinButton1_Click_2(object sender, EventArgs e) { int m = 0; using (FileStream fsread = new FileStream(@"C:\Users\Administrator\Desktop\Excel\zong.xls", FileMode.Open, FileAccess.Read)) { using (FileStream fswrite = new FileStream(@"C:\Users\Administrator\Desktop\Excel\goodsClassThree.xls", FileMode.OpenOrCreate, FileAccess.Write)) { HSSFWorkbook workread = new HSSFWorkbook(fsread); HSSFSheet sheetread = workread.GetSheetAt(0); HSSFWorkbook workwrite = new HSSFWorkbook(); HSSFSheet sheetwrite = workwrite.CreateSheet("goodsClassOne"); for (int i = 0; i <= sheetread.LastRowNum; i++) { HSSFRow row = sheetread.GetRow(i); for (int j = 0; j <= row.LastCellNum; j++) { HSSFCell cell = row.GetCell(j); if (cell != null) { if (cell.ToString() != "") { HSSFRow newrow = sheetwrite.CreateRow(m); newrow.CreateCell(0, HSSFCellType.STRING).SetCellValue(cell.ToString()); newrow.CreateCell(1, HSSFCellType.NUMERIC).SetCellValue(i+1); m++; } } } } workwrite.Write(fswrite); } MessageBox.Show("寫入成功共" + m); } } private void skinButton3_Click(object sender, EventArgs e) { using (FileStream fs = new FileStream(@"C:\Users\Administrator\Desktop\Excel\goodsClassThree.xls", FileMode.Open, FileAccess.Read)) { HSSFWorkbook wk = new HSSFWorkbook(fs); HSSFSheet sheet = wk.GetSheetAt(0); HSSFRow row = null; goodsclassthree gc = null; zlyfmallEntities2 db = new zlyfmallEntities2(); for (int i = 0; i <= sheet.LastRowNum; i++) { row = sheet.GetRow(i); gc = new goodsclassthree(); gc.tname = row.GetCell(0).ToString(); gc.father = int.Parse(row.GetCell(1).ToString()); gc.status = 1; db.goodsclassthree.Add(gc); } db.SaveChanges(); MessageBox.Show("插入成功"); } } private void button1_Click(object sender, EventArgs e) { using (FileStream fs = new FileStream(@"C:\Users\Administrator\Desktop\Excel\goodstype1.xls", FileMode.Open, FileAccess.Read)) { HSSFWorkbook work = new HSSFWorkbook(fs); HSSFSheet sheet = work.GetSheetAt(0); HSSFRow row = null; goodsclassone gt = null; zlyfmallEntities2 db = new zlyfmallEntities2(); for (int i = 1; i <= sheet.LastRowNum; i++) { row = sheet.GetRow(i); gt = new goodsclassone(); gt.tname = row.GetCell(0).ToString().Replace(" ", ","); gt.status = int.Parse(row.GetCell(1).ToString()); db.goodsclassone.Add(gt); } db.SaveChanges(); } } } }