asp.net 通过 Handler 导出数据至excel (让用户下载)

效果图：

代码：

Export2Excel.ashx

1 <%@ WebHandler Language="C#" CodeBehind="Export2Excel.ashx.cs" Class="BLIC.SecurityCodeValidate.Web.Handler.Export2Excel" %>

Export2Excel.ashx.cs

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Linq;
  4 using System.Web;
  5 using System.Web.SessionState;
  6 using System.IO;
  7 using System.Data;
  8 
  9 namespace BLIC.SecurityCodeValidate.Web.Handler
 10 {
 11     /// <summary>
 12     /// AdminLogin 的摘要说明
 13     /// </summary>
 14     public class Export2Excel : IHttpHandler, IRequiresSessionState
 15     {
 16 
 17         public void ProcessRequest(HttpContext context)
 18         {
 19 
 20 
 21             try
 22             {
 23                 test1(context);
 24             }
 25             catch (Exception ex)
 26             {
 27             }
 28 
 29             //try
 30             //{
 31             //    test1(context);
 32             //}
 33             //catch (Exception ex)
 34             //{
 35             //    //context.Response.ContentType = "text/plain";
 36             //    context.Response.Write("导出失败：" + ex.Message);
 37             //}
 38         }
 39 
 40         public bool IsReusable
 41         {
 42             get
 43             {
 44                 return false;
 45             }
 46         }
 47 
 48         private void test1(HttpContext context)
 49         {
 50             HttpResponse resp = System.Web.HttpContext.Current.Response;
 51             resp.Charset = "utf-8";
 52             resp.Clear();
 53             string filename = "统计贴标报表_" + DateTime.Now.ToString("yyyyMMddHHmmss");
 54             resp.AppendHeader("Content-Disposition", "attachment;filename=" + filename + ".xls");
 55             resp.ContentEncoding = System.Text.Encoding.UTF8;
 56 
 57             resp.ContentType = "application/ms-excel";
 58             string style = "<meta http-equiv="content-type" content="application/ms-excel; charset=utf-8"/>" + "<style> .table{ font: 9pt Tahoma, Verdana; color: #000000; text-align:center;  background-color:#8ECBE8;  }.table td{text-align:center;height:21px;background-color:#EFF6FF;}.table th{ font: 9pt Tahoma, Verdana; color: #000000; font-weight: bold; background-color: #8ECBEA; height:25px;  text-align:center; padding-left:10px;}</style>";
 59             resp.Write(style);
 60  
 61             resp.Write("<table class='table'><tr><th>姓名</th><th>出生年月</th><th>籍贯</th><th>毕业时间</th></tr>");
 62            
 63             System.Data.DataTable dtSource = new System.Data.DataTable();
 64             dtSource.TableName = "statistic";
 65             dtSource.Columns.Add("第一列");
 66             dtSource.Columns.Add("第二列");
 67             dtSource.Columns.Add("第三列");
 68             dtSource.Columns.Add("第四列");
 69 
 70             System.Data.DataRow row = null;
 71             row = dtSource.NewRow();
 72             row[0] = "张三";
 73             row[1] = "1987-09-09";
 74             row[2] = "河北保定";
 75             row[3] = "2008年毕业";
 76             dtSource.Rows.Add(row);
 77 
 78             row = dtSource.NewRow();
 79             row[0] = "李四";
 80             row[1] = "1987-09-02";
 81             row[2] = "湖北武汉";
 82             row[3] = "2009年毕业";
 83             dtSource.Rows.Add(row);
 84 
 85             row = dtSource.NewRow();
 86             row[0] = "王五";
 87             row[1] = "1987-09-01";
 88             row[2] = "湖南湘潭";
 89             row[3] = "2013年毕业";
 90             dtSource.Rows.Add(row);
 91 
 92             foreach (DataRow tmpRow in dtSource.Rows)
 93             {
 94                 resp.Write("<tr><td>" + tmpRow[0] + "</td>");
 95                 resp.Write("<td>" + tmpRow[1] + "</td>");
 96                 resp.Write("<td>" + tmpRow[2] + "</td>");
 97                 resp.Write("<td>" + tmpRow[3] + "</td>");
 98                 resp.Write("</tr>");
 99             }
100             resp.Write("<table>");
101 
102             resp.Flush();
103             resp.End();
104         }
105   
106     }
107 }

Js部分内容

1 $("#Excel").bind('click', function () {
2                 var url = "AjaxHandler/RadioFamilyDayNumber.ashx?Action=Excel";
3                 window.location.href = url;//导出Excel
4             })