关于 IIS 中 Excel 访问的问题

关于 IIS 上 Excel 文件的访问, 一路上困难重重, 最后按以下步骤进行设置, 可在 IIS 中正常使用!

1. 引用及代码:

1). 项目中添加 Excel 程序集引用(注意: 从系统 COM 组件中选择"Microsoft Excel 1*.0 Object Library"):

2). 设置 Excel 程序集属性: 选择已添加的 Excel 程序集 Microsoft.Office.Interop.Excel, 右键选择属性, Copy Local 改为 True, Embed Interop Types 改为 False.

3). Excel 访问代码:

 private ICollection<Sample> ReadExcel(string fileName)
         {
             Application excel = new ApplicationClass { Visible = false, DisplayAlerts = false };
             Workbook workbook = null;
             Worksheet sheet = null;

             try
             {
                 workbook = excel.Workbooks.Open(fileName);
                 sheet = (Worksheet)workbook.ActiveSheet;

                 if (sheet == null)
                 {
                     throw new Exception("Read excel file failed!");
                 }

                 Range range = null;
                 int rowIndex = ;

                 ICollection<Sample> list = new HashSet<Sample>();
                 for (rowIndex = ; rowIndex <= sheet.UsedRange.Rows.Count; rowIndex++)
                 {
                     if (!this.HasValue(sheet, rowIndex))
                     {
                         break;
                     }

                     int colIndex = ;
                     var sample = new Sample();
                     range = (Range)sheet.Cells[rowIndex, colIndex++];
                     sample.Name = range.Value;
　　　　　　　　　　　　　 // ... other code logic
                     list.Add(sample);
                 }
                 return list;
             }
             catch (Exception ex)
             {
                 throw ex.GetInnerException();
             }
             finally
             {
                 if (workbook != null)
                 {
                     workbook.Close(false);
                     System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook);
                     System.Runtime.InteropServices.Marshal.ReleaseComObject(sheet);
                 }
                 workbook = null;
                 excel.Workbooks.Close();
                 excel.Quit();
                 System.Runtime.InteropServices.Marshal.ReleaseComObject(excel);
                 excel = null;
                 GC.Collect();
                 GC.WaitForPendingFinalizers();
                 File.Delete(fileName);
             }
         }

2.  IIS 设置:

1). 站点发布后, 选择 Authentication -> Anonymous Authentication -> Edit 选择 Application pool identity -> OK.

2). IIS Application pool 选中当前 Application -> Advanced Settings -> Identity 选择 Network Service -> OK

3.  COM 组建设置:

　1).开始--〉运行--〉cmd

   2)命令提示符下面，输入mmc -32,打开32的控制台

   3).文件菜单中或根节点右键，添加删除管理单元--〉组件服务

   4).在"DCOM配置"中找到"Microsoft Excel Application",在它上面点击右键,然后点击"属性",弹出"Microsoft Excel Application 属性"对话框

　5).点击"标识(Identity)"标签,选择"交互式用户(The interactive user)"

　6).点击"安全(Security)"标签,在"启动和激活权限(Launch and Activition Perimissions)"上点击"自定义(Customize)",然后点击对应的"编辑(Edit)"按钮,在弹出的"安全性(Security)"对话框中填加一个"NETWORK SERVICE"用户(注意要选择本计算机名),并给它赋予"本地启动"和"本地激活"权限

   7).依然是"安全(Security)"标签,在"访问权限(Access Perimissions)"上点击"自定义(Customize)",然后点击"编辑(Edit)",在弹出的"安全性"对话框中也填加一个"NETWORK SERVICE"用户,然后赋予"本地访问"权限.

 

　　4.重新启动IIS，测试通过