1          /// <summary> 
 2         /// 将一组对象导出成EXCEL 
 3         /// </summary> 
 4         /// <typeparam name="T">要导出对象的类型</typeparam> 
 5         /// <param name="objList">一组对象</param> 
 6         /// <param name="FileName">导出后的文件名</param> 
 7         /// <param name="columnInfo">列名信息</param> 
 8         public void ListToExcel<T>(List<T> objList, string FileName, Dictionary<string, string> columnInfo)
 9         {
10             if (columnInfo.Count == 0) { return; }
11             if (objList.Count == 0) { return; }
12             //生成EXCEL的HTML 
13             string excelStr = "";
14             Type myType = objList[0].GetType();
15             //根据反射从传递进来的属性名信息得到要显示的属性 
16             List<System.Reflection.PropertyInfo> myPro = new List<System.Reflection.PropertyInfo>();
17             foreach (string cName in columnInfo.Keys)
18             {
19                 System.Reflection.PropertyInfo p = myType.GetProperty(cName);
20                 if (p != null)
21                 {
22                     myPro.Add(p);
23                     excelStr += columnInfo[cName] + "\t";
24                 }
25             }
26             //如果没有找到可用的属性则结束 
27             if (myPro.Count == 0) { return; }
28             excelStr += "\n";
29             foreach (T obj in objList)
30             {
31                 foreach (System.Reflection.PropertyInfo p in myPro)
32                 {
33                     excelStr += p.GetValue(obj, null) + "\t";
34                 }
35                 excelStr += "\n";
36             }
37             //输出EXCEL 
38             HttpResponse rs = System.Web.HttpContext.Current.Response;
39             rs.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
40             rs.AppendHeader("Content-Disposition", "attachment;filename=" + FileName);
41             rs.ContentType = "application/ms-excel";
42             rs.Write(excelStr);
43             rs.End();
44         }