.NET读取和创建Excel

1、用到的命名空间

using Excel;
using System.Diagnostics;

using NPOI.HSSF.UserModel;

npoi读取excel

 1  StringBuilder sb = new StringBuilder();
 2             using (Stream stream = File.OpenRead("c:\\abc.xls"))
 3             {
 4                 //内容中的excel文件
 5                 HSSFWorkbook workbook = new HSSFWorkbook(stream);
 6                 //Console.WriteLine(workbook.GetSheetName(0));
 7                 //表格
 8                 HSSFSheet sheet = workbook.GetSheetAt(0);
 9                 //最后一行的索引
10                 //sheet.LastRowNum
11                 for (int i = 1; i <= sheet.LastRowNum; i++)
12                 {
13                     //表格中的每一行
14                     HSSFRow row = sheet.GetRow(i);
15 
16                     //row.LastCellNum   单元格的个数
17                     for (int j = 0; j < row.LastCellNum; j++)
18                     {
19                         //单元格
20                         HSSFCell cell = row.GetCell(j);
21                         //判断单元格是否为null
22                         if (cell == null)
23                         {
24                             sb.Append(",");
25                             continue;
26                         }
27                         //判断单元格的类型
28                         if (cell.CellType == HSSFCell.CELL_TYPE_NUMERIC)
29                         {
30                             sb.Append(cell.NumericCellValue.ToString() + ",");
31                         }
32                         else if (cell.CellType == HSSFCell.CELL_TYPE_STRING)
33                         {
34                             sb.Append(cell.StringCellValue + ",");
35                         }
36                     }
37                     sb.Append("\r\n");
38                 }
39             }
40             Console.WriteLine(sb.ToString());

npoi 创建excel

 1 //在内容中创建excel文件
 2             HSSFWorkbook workbook = new HSSFWorkbook();
 3 
 4             //在workbook中创建sheet
 5             HSSFSheet sheet = workbook.CreateSheet();
 6 
 7             //在sheet中创建行
 8             HSSFRow row =  sheet.CreateRow(0);
 9             //在行中创建第一个单元格
10             HSSFCell cell =  row.CreateCell(0,HSSFCell.CELL_TYPE_STRING);
11             cell.SetCellValue("张三");
12             //
13             cell = row.CreateCell(1, HSSFCell.CELL_TYPE_NUMERIC);
14             cell.SetCellValue(18);
15             //保存到文件
16             using (FileStream fs = new FileStream("c:\\22222222.xls",FileMode.Create))
17             {
18                 workbook.Write(fs); 
19             }
20             Console.WriteLine("over");

2、本机创建邮件服务器

邮件对象

 1             MailMessage msg = new MailMessage();
 2             msg.From = new MailAddress("abc@163.com","纯洁的....");
 3             msg.To.Add(new MailAddress("xyz@126.com","dear Zi"));
 4             msg.Subject = txtTitle.Text.Trim();
 5             msg.Body = txtContent.Text.Trim();
 6             //发送邮件
 7             SmtpClient client = new SmtpClient("127.0.0.1");//;("127.0.0.1");//smtp.126.com
 8             //设置发送服务器登录 的用户名和密码
 9             client.Credentials = new NetworkCredential("nll", "admin");//这里的用户名必须是From发件人的用户
10 
11             client.Send(msg);//发送
12

posted on 2012-08-06 00:43 Fan帥帥阅读(309) 评论(0) 编辑收藏举报