利用Aspose.Cells和Excel模板导出复杂的统计数据

在项目中要进行导出Excel报表给客户，里面有统计，就心思用Aspose.Cells 配合实体类数据直接导出。结果呢比较麻烦。然后就检索找到利用Excel模板配合实体类数据导出。

总的来说一般的报表生成，基本上是基于以下几种方式：一种是基于微软Excel内置的引擎来实现；一种是构造HTML格式的Excle报表；一种是基于控件的方式来处理，基于控件有很多种方式，个人认为比较有名的是Aspose.Cell和NPOI,下面用到的是Aspose.Cell

效果图：

Excel模板及相关变量

报表1模板如下所示（其中通过引用集合的对象是通过&=来引用，对象的属性或者列名，通过如&=Export.作业完成计划方式引用，非常直观方便)

Aspose.Cell控件支持多种参数变量的绑定操作，如支持DataSet、Datatable、IList集合，实体类集合、类对象等。

OverLoaded Method	Description
[public void SetDataSource ( DataTable dataTable )]	Sets data source of a DataTable object.
[public void SetDataSource ( String dataSourceName, DataView dataView )]	Sets data source of a DataView object and binds it to a data source name.
[public void SetDataSource ( DataView dataView )]	Sets data source of a DataView object.
[public void SetDataSource ( String name, IDataReader dataReader, Int32 rowCount )]	Sets data source of a IDataReader object.
[public void SetDataSource ( String variable, Object data )]	Sets data binding to a variable.
[public void SetDataSource ( String variable, Object\[\] dataArray )]	Sets data array binding to a variable.
[public void SetDataSource ( OleDbConnection connection )]	Sets data source of a OleDbConnection object.
[public void SetDataSource ( SqlConnection connection )]	Sets data source of a SqlConnection object.

参考：http://docs.aspose.com:8082/docs/display/cellsnet/Aspose.Cells.WorkbookDesigner+Class

下面我主要用List 实体类集合

	protected void ExportExcel_ServerClick(object sender, EventArgs e)
		{
			 HttpCookie getCookies = Request.Cookies["UserLogin"];
			 if (getCookies != null)
			 {
				  string[] strParm = hfExcelData.Value.Split(',');
				  List<jianpinorzhen_view> getJianPinOrZhenData = SearchExportData.LstSearchExportJianPinOrZhen
(Server.UrlDecode(getCookies["SqlConString"]), getCookies["CustomCode"],getCookies["CustomType"],
 strParm[0], strParm[1], strParm[2], strParm[3], strParm[4]);
				  //创建一个workbookdesigner对象
				  WorkbookDesigner designer = new WorkbookDesigner();

				  //制定报表模板
				  switch (strParm[4])
				  {
					   case "工厂入货箱单信息":
							  designer.Open(Server.MapPath(@"model\AllWarehousing.xls"));
							break;
					   case "上货开箱信息":
							designer.Open(Server.MapPath(@"model\Warehousing.xls"));
							break;
					   case "检品之后信息":
							designer.Open(Server.MapPath(@"model\Dress_Jp.xls"));
							break;
					   case "检针之后信息":
							designer.Open(Server.MapPath(@"model\Dress_Jz.xls"));
							break;
					   default:
							break;
				  }

				  //设置实体类对象<span style="color:#FF0000;">这里设置了Export 变量，然后在模板里面我们就用了。
				  designer.SetDataSource("Export", getJianPinOrZhenData);
 //报表标题头部 //可以扩展多个
designer.SetDataSource("ExportUtils",strParm[4]);   
//报表截止日期   
designer.SetDataSource("ExportDate", DateTime.Now.ToString("yyyy年MM月dd日"));
//根据数据源处理生成报表内容
 designer.Process(); 
//客户端保存的文件名//如果保存的文件名是汉字的话一定要编码，否则就是乱码 HttpUtility.UrlEncode(strParm[4])
string fileName = HttpUtility.UrlEncode(strParm[4]) + "_" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".xls"; 
designer.Save(fileName, SaveType.OpenInExcel, FileFormatType.Excel2003, Response); 
Response.Flush(); 
Response.Close();
designer = null;
Response.End(); }}

DataTable 读取数据

DataTable dt = ExcuteDataTable(querySql);
            
            dt.TableName = "Export";
            if (dt.Rows.Count == 0)
                return;
            WorkbookDesigner designer = new WorkbookDesigner();
string fileName = HttpUtility.UrlEncode(strParm[4]) + "_" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".xls";
            designer.Open(fileName<code class="csharp spaces"></code>);
//设置DataTable对象
designer.SetDataSource("Export",dt); 
//设置DataSet对象
designer.SetDataSource(ds.Tables["Export"]);
designer.Process();

更多信息访问官方网站：http://www.aspose.com/docs/display/cellsnet/Home