Mvc Excel导出控制器扩展

实现代码如下：

View Code

 1 using System;

 2 using System.Collections.Generic;

 3 using System.Linq;

 4 using System.Web;

 5 using System.Web.Mvc;

 6 using System.Reflection;

 7 using System.Text;

 8 

 9 namespace HtmlHelperDemo.Extension

10 {

11     public class ExportExcelResult : ActionResult

12     {

13         private string filename;

14         private IEnumerable<object> source;

15         public ExportExcelResult(IEnumerable<object> source, string filename)

16         {

17             this.source = source;

18             this.filename = filename;

19         }

20         public override void ExecuteResult(ControllerContext context)

21         {

22             if (source != null && source.Any())

23             {

24                 context.RequestContext.HttpContext.Response.AppendHeader("content-disposition", "attachment;filename=" + filename);

25                 context.RequestContext.HttpContext.Response.ContentEncoding = Encoding.GetEncoding("gb2312");

26                 context.RequestContext.HttpContext.Response.ContentType = "application/excel";

27                 object obj = source.FirstOrDefault();

28                 PropertyInfo[] infos = obj.GetType().GetProperties();

29                 foreach (var item in infos)

30                 {

31                     var cutomeObj = item.GetCustomAttributes(typeof(DescriptionAttribute), false);

32                     if (cutomeObj != null && cutomeObj.Any())

33                     {

34                         DescriptionAttribute desc = cutomeObj[0] as DescriptionAttribute;

35                         context.RequestContext.HttpContext.Response.Write(desc.Descrip);

36                         context.RequestContext.HttpContext.Response.Write("\t");

37                     }

38                 }

39                 context.RequestContext.HttpContext.Response.Write("\n");

40                 foreach (var item in source)

41                 {

42                     PropertyInfo[] infoarr = item.GetType().GetProperties();

43                     foreach (var info in infoarr)

44                     {

45                         var val = info.GetValue(item, null);

46                         context.RequestContext.HttpContext.Response.Write(val);

47                         context.RequestContext.HttpContext.Response.Write("\t");

48                     }

49                     context.RequestContext.HttpContext.Response.Write("\n");

50                 }

51                 context.RequestContext.HttpContext.Response.End();

52             }

53             else

54                 throw new ArgumentNullException("source  can't  be  null");

55         }

56 

57     }

58 

59 

60     public class DescriptionAttribute : Attribute

61     {

62         public string Descrip;

63         public DescriptionAttribute(string descrip)

64         {

65             this.Descrip = descrip;

66         }

67     }

68 }

调用代码如下：

View Code

 1      public ActionResult Index3()

 2         {

 3             List<Studnet> list = new List<Studnet>();

 4             list.Add(new Studnet() { ID = 1, Name = "aaa" });

 5             list.Add(new Studnet() { ID = 2, Name = "bbb" });

 6             return new ExportExcelResult(list, "aaa.xls");

 7         }

 8         public class Studnet

 9         {

10             [Description("编号")]

11             public int ID { get; set; }

12             [Description("姓名")]

13             public string Name { get; set; }

14 

15         }