在服务端C#如何利用NPOI构建Excel模板

目前本人接触过两种模板导出的方式:(1)C#利用NPOI接口制作Excel模板,在服务端用数据渲染模板(2)在前端利用前人搭建好的框架,利用office编写xml制作模板,在客户端进行数据的渲染,导出的格式是word。在制作报表时两种方式都可以满足的基本需求,但excel模板更加强大,因为xml模板的布局大体在事先就要确定好,扩展性不高,而excel模板就可以根据数据的特点进行自定义布局,拓展性更强。下面介绍如何在服务端利用NPOI构建excel模板。

简单来讲,NPOI是一个库,它可以处理多种文件格式如xls、xlsx、doc、ppt、vsd等。除了制作excel模板,也可以读取excel中的数据。本文具体介绍制作excel模板。

添加引用NPOI后,在文件的头部引入如下几个接口,如图

HSSF使用于2007之前的xls版本,XSSF适用于2007及其之后的xlsx版本,它们是excel/doc格式读写库。NPOI.SS是Excel公用接口及Excel公式计算引擎。更多具体的功能以及接口可以自行百度。

具体实现如下:

 

 public List<string> GetExcel(string year, string month, string type, out string statusCode, out string errMsg)
  2         {
  3             statusCode = "0000";
  4             errMsg = "";
  5             List<string> response = new List<string>();
  6             string strFilePath = "";
  7             string strGuid = Guid.NewGuid().ToString();
  8             string FilePath = "\\BufFile\\OutFiles\\DownLoadFiles\\ExportExcel\\" + strGuid;
                //构建文件缓存目录
  9             strFilePath = System.IO.Directory.GetParent(System.IO.Directory.GetParent(System.AppDomain.CurrentDomain.BaseDirectory).FullName).FullName + FilePath;
 10             if (!System.IO.Directory.Exists(strFilePath))
 11             {
 12                 System.IO.Directory.CreateDirectory(strFilePath);
 13             }
 14             //文件命名
 15             string strFileName = strFilePath + "\\" + "XXXXXX.xls";
 16             string ret = FilePath + "\\" + "XXXXXX.xls";
 17             string uploadPath = System.IO.Directory.GetParent(System.IO.Directory.GetParent(System.AppDomain.CurrentDomain.BaseDirectory).FullName).FullName + "\\BufFile\\OutFiles\\UploadFiles\\";
 18             List<CompletionRateModel> data = GetCompletionRate(year, month, out statusCode, out errMsg);
 19             try
 20             {   //创建工作薄
 21                 HSSFWorkbook hssfWorkBook = new HSSFWorkbook();
                    //编辑文件信息,如文件所属公司、作者、创建日期等
 22                 DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation();
 23                 dsi.Company = "ZondyCyber";
 24                 SummaryInformation si = PropertySetFactory.CreateSummaryInformation();
 25                 si.Author = "ZondyCyber";
 26                 si.LastAuthor = "ZondyCyber";
 27                 si.CreateDateTime = DateTime.Now;
 28                 hssfWorkBook.DocumentSummaryInformation = dsi;
 29                 hssfWorkBook.SummaryInformation = si;
                    //创建名为YYYYYY的表sheet
 30                 HSSFSheet hssfSheet = hssfWorkBook.CreateSheet("YYYYYY") as HSSFSheet;
 31 
 32                 //设置列宽
 33                 for (int c = 0; c < 7; c++)
 34                 {
 35                     hssfSheet.SetColumnWidth(c, 12 * 266);
 36                 }
 37 
 38                 //设置列头的单元格样式
 39                 HSSFCellStyle cellStyle = hssfWorkBook.CreateCellStyle() as HSSFCellStyle;
 40                 HSSFFont cellFont = hssfWorkBook.CreateFont() as HSSFFont;
 41                 cellFont.Boldweight = Convert.ToInt16(FontBoldWeight.Bold);
 42                 cellFont.FontName = "宋体";
 43                 cellFont.FontHeightInPoints = 12;
 44                 cellStyle.Alignment = HorizontalAlignment.Center;
 45                 cellStyle.VerticalAlignment = VerticalAlignment.Center;
 46                 cellStyle.WrapText = true;
 47                 cellStyle.SetFont(cellFont);
 48                 cellStyle.BorderTop = cellStyle.BorderRight = cellStyle.BorderBottom = cellStyle.BorderLeft = BorderStyle.Thin;//BorderStyle.None
 49                 //左对齐样式
 50                 HSSFCellStyle leftCellStyle = hssfWorkBook.CreateCellStyle() as HSSFCellStyle;
 51                 leftCellStyle.CloneStyleFrom(cellStyle);
 52                 leftCellStyle.Alignment = HorizontalAlignment.Left;
 53                 //居中填充样式
 54                 HSSFCellStyle fillCellStyle = hssfWorkBook.CreateCellStyle() as HSSFCellStyle;
 55                 fillCellStyle.CloneStyleFrom(cellStyle);
 56                 fillCellStyle.FillForegroundColor = NPOI.HSSF.Util.HSSFColor.Grey25Percent.Index;
 57                 //fillCellStyle.FillPattern = FillPattern.Diamonds;
 58                 //fillCellStyle.FillPattern = FillPattern.FineDots;
 59                 fillCellStyle.FillPattern = FillPattern.LeastDots;
 60                 fillCellStyle.FillBackgroundColor = NPOI.HSSF.Util.HSSFColor.Grey25Percent.Index;
 61 
 62                 //居中填充样式(无边框)
 63                 HSSFCellStyle fillCellStyle2 = hssfWorkBook.CreateCellStyle() as HSSFCellStyle;
 64                 fillCellStyle2.CloneStyleFrom(fillCellStyle);
 65                 //fillCellStyle2.FillPattern = FillPattern.NoFill;
 66                 fillCellStyle2.BorderTop = fillCellStyle2.BorderRight = fillCellStyle2.BorderBottom = fillCellStyle2.BorderLeft = BorderStyle.None;//BorderStyle.None
 67                 //值的样式
 68                 HSSFCellStyle valueStyle = hssfWorkBook.CreateCellStyle() as HSSFCellStyle;
 69                 HSSFFont valueFont = hssfWorkBook.CreateFont() as HSSFFont;
 70                 valueFont.FontName = "宋体";
 71                 valueFont.FontHeightInPoints = 10;
 72                 valueStyle.BorderTop = valueStyle.BorderRight = valueStyle.BorderBottom = valueStyle.BorderLeft = BorderStyle.Thin;//BorderStyle.None
 73                 valueStyle.WrapText = true;
 74                 valueStyle.Alignment = HorizontalAlignment.Center;
 75                 valueStyle.VerticalAlignment = VerticalAlignment.Center;
 76                 valueStyle.SetFont(valueFont);
 77                 //值的样式(无边框)
 78                 HSSFCellStyle valueStyle2 = hssfWorkBook.CreateCellStyle() as HSSFCellStyle;
 79                 valueStyle2.CloneStyleFrom(valueStyle);
 80                 valueStyle2.BorderTop = valueStyle2.BorderRight = valueStyle2.BorderBottom = valueStyle2.BorderLeft = BorderStyle.None;//BorderStyle.None
 81 
 82                 //开始构建表格
 83                 int rowIndex = 0;//记录用到第几行
 84                 //构建表题
 85                 String Title = "XXXXXX(" + type + ")统计     " + year + "" + month + "";
 86                 //创建表格的第一行的第一个单元格
                    hssfSheet.CreateRow(0).CreateCell(0).CellStyle = fillCellStyle;
                    //获取表格的第一行的第一个单元格,并为其赋值
 87                 hssfSheet.GetRow(0).GetCell(0).SetCellValue(Title);
 88                 //合并单元格
                    /*
                    * cellRangeAddress可以合并行或列,第一个参数是起始行号,第二个参数是终止行号,第三个参数是起始列号,第三个参数是终止列号
                    */
 89                 CellRangeAddress region = new CellRangeAddress(rowIndex, rowIndex + 2, 0, 6);
 90                 hssfSheet.AddMergedRegion(region);
 91                 hssfSheet.SetEnclosedBorderOfRegion(region, BorderStyle.Thin, NPOI.HSSF.Util.HSSFColor.Black.Index);
 92                 rowIndex = rowIndex + 3; //3
 93                 String Type = "部门";
 94                 //构建表头
 95                 hssfSheet.CreateRow(rowIndex).CreateCell(0).CellStyle = valueStyle;
 96                 hssfSheet.GetRow(rowIndex).GetCell(0).SetCellValue("序号");
 97                 /**
                    ** 构建表格的具体细节省略,无非是合并单元格,填充数据
                    **/
323                 //表格构建完毕
324                 FileStream file = new FileStream(strFileName, FileMode.Create);
325                 hssfWorkBook.Write(file);
326                 file.Close();
327                 response.Add(ret);
328             }
View Code

 

posted @ 2017-10-08 11:03  Jinus  阅读(2121)  评论(2编辑  收藏  举报