NPOI控件的使用导出excel文件和word文件

 1 public HttpResponseMessage GetReportRateOutput(DateTime? begin_time = null, DateTime? end_time = null, string type = "大浮标")
 2         {
 3             var dataList = _adapter.DataReportRate(type, begin_time, end_time).ToList();
 4
 5             NPOI.HSSF.UserModel.HSSFWorkbook book = new NPOI.HSSF.UserModel.HSSFWorkbook();
 6             NPOI.SS.UserModel.ISheet sheet = book.CreateSheet("“" + type + "”到报率统计");
 7
 8             // 第一列
 9             NPOI.SS.UserModel.IRow row = sheet.CreateRow(0);
10             row.CreateCell(0).SetCellValue("站名");
11             row.CreateCell(1).SetCellValue("应到报数");
12             row.CreateCell(2).SetCellValue("叶绿素到报率");
13             row.CreateCell(3).SetCellValue("气压到报率");
14             row.CreateCell(4).SetCellValue("风速到报率");
15             row.CreateCell(5).SetCellValue("气温到报率");
16             row.CreateCell(6).SetCellValue("水温到报率");
17             row.CreateCell(7).SetCellValue("波高到报率");
18             row.CreateCell(8).SetCellValue("盐度到报率");
19
20             NPOI.SS.UserModel.ICellStyle style = book.CreateCellStyle();
21             style.Alignment = HorizontalAlignment.Center;
22             style.FillBackgroundColor = NPOI.HSSF.Util.HSSFColor.DarkBlue.Index;
23             style.FillForegroundColor = NPOI.HSSF.Util.HSSFColor.DarkBlue.Index;
24             row.GetCell(0).CellStyle = style;
25             row.GetCell(1).CellStyle = style;
26             row.GetCell(2).CellStyle = style;
27             row.GetCell(3).CellStyle = style;
28             row.GetCell(4).CellStyle = style;
29             row.GetCell(5).CellStyle = style;
30             row.GetCell(6).CellStyle = style;
31             row.GetCell(7).CellStyle = style;
32             row.GetCell(8).CellStyle = style;
33             sheet.SetColumnWidth(0, 15 * 256);
34             sheet.SetColumnWidth(1, 15 * 256);
35             sheet.SetColumnWidth(2, 15 * 256);
36             sheet.SetColumnWidth(3, 15 * 256);
37             sheet.SetColumnWidth(4, 15 * 256);
38             sheet.SetColumnWidth(5, 15 * 256);
39             sheet.SetColumnWidth(6, 15 * 256);
40             sheet.SetColumnWidth(7, 15 * 256);
41             sheet.SetColumnWidth(8, 15 * 256);
42
43
44             int index = 1;
45             foreach (DataTransferStatus dataInfo in dataList)
46             {
47                 // 第二列
48                 NPOI.SS.UserModel.IRow row2 = sheet.CreateRow(index);
49
50                 row2.CreateCell(0).SetCellValue(dataInfo.name);
51                 row2.CreateCell(1).SetCellValue(dataInfo.report_number);
52                 row2.CreateCell(2).SetCellValue(dataInfo.phyll_report_rate + "%");
53                 row2.CreateCell(3).SetCellValue(dataInfo.pressure_report_rate + "%");
54                 row2.CreateCell(4).SetCellValue(dataInfo.speed_report_rate + "%");
55                 row2.CreateCell(5).SetCellValue(dataInfo.temp_report_rate + "%");
56                 row2.CreateCell(6).SetCellValue(dataInfo.water_report_rate + "%");
57                 row2.CreateCell(7).SetCellValue(dataInfo.wave_report_rate + "%");
58                 row2.CreateCell(8).SetCellValue(dataInfo.salt_report_rate + "%");
59
60                 index++;
61             }
62             System.IO.MemoryStream stream = new System.IO.MemoryStream();
63             book.Write(stream);
64             stream.Seek(0, SeekOrigin.Begin);
65             book = null;
66             HttpResponseMessage mResult = new HttpResponseMessage(System.Net.HttpStatusCode.OK);
67             mResult.Content = new StreamContent(stream);
68             mResult.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment");
69             mResult.Content.Headers.ContentDisposition.FileName = type + "_到报率统计" + DateTime.Now.ToString("yyyy-MM-dd") + ".xls";
70             mResult.Content.Headers.ContentType = new MediaTypeHeaderValue("application/ms-excel");
71
72             return mResult;
73         }

1.首先导入NPOI的dll，这个在网上有很多自行下载。先去官网：http://npoi.codeplex.com/下载需要引入dll（可以选择.net2.0或者.net4.0的dll），然后在网站中添加引用。

2.引用命名空间 using NPOI.SS.UserModel

3.（此处以导出excel为例）我们要明白一个完整的excel文件是由哪几部分组成的！

（1）一张工作薄BOOK,一张工作表sheet,然后包括ROW行，Column列,Cell单元格

4.

分别创建出每一部分NPOI.HSSF.UserModel.HSSFWorkbook book = new NPOI.HSSF.UserModel.HSSFWorkbook();//
NPOI.SS.UserModel.ISheet sheet = book.CreateSheet("“" + type + "”到报率统计");
NPOI.SS.UserModel.IRow row = sheet.CreateRow(0);

设置excel文件的样式

NPOI.SS.UserModel.ICellStyle style = book.CreateCellStyle();
style.Alignment = HorizontalAlignment.Center;
style.FillBackgroundColor = NPOI.HSSF.Util.HSSFColor.DarkBlue.Index;style.FillForegroundColor = NPOI.HSSF.Util.HSSFColor.DarkBlue.Index;