用ASPOSE.Cells将HTML表格存为Excel

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前端生成的html表格经常需要导出到excel中,利用JS和Office控件可以做到,但仅限于IE,还要启用安全设置。

想找一个简单的办法将HTML内容直接转换成Excel文件,如果直接修改网页头信息输出,虽然可以导出,但打开时会提示格式不是Excel的,怎样才能导出真正的Excel文件?


aspose.cells是个功能强大的控件,可以方便的生成excel文件。经考虑,将html发送到后台,保存为xls文件(其实是html内容),再用aspose.cells打开,输出到客户端,这样就变成了真正的excel文件了。

基本代码:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="htmlTableToExcel.aspx.cs" Inherits="ASPOSE_htmlTableToExcel" %><!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>    <title></title></head><body>    <form id="form1" runat="server">        <input id="Button1" type="button" value="button" onclick="toExcel()" />    <div>        <table style="width: 200px; border:1px red solid;" id="table1">            <tr>                <td style="width:30px;">2</td>                <td style="width:80px;">ddsf</td>                <td style="width:90px;">s</td>            </tr>            <tr>                <td>3</td>                <td style="color:red; border:2px green solid;">sfas</td>                <td>f</td>            </tr>            <tr>                <td>5</td>                <td>ggg</td>                <td>g</td>            </tr>            <tr>                <td> </td>                <td rowspan="2">fffg</td>                <td> </td>            </tr>            <tr>                <td>z</td>                <td>f</td>            </tr>        </table>    </div>    </form></body></html><script src="../JS/Jquery-1.8.2.min.js"></script><script type="text/javascript">    function toExcel() {        if (!document.getElementById('div_div_div_1234567890')) {            $('body').append("<div id='div_div_div_1234567890' style='display:none;'>"                + "<iframe id='submitFrame' name='submitFrame'></iframe>"                + "<form id='form_form_form_1234567890' method='post' target='submitFrame' onsubmit='return false;'>"                + "<input type='hidden' id='input_input_input_1234567890' name='table' />"                + "</form>"                + "</div>");        }        document.getElementById('input_input_input_1234567890').value = document.getElementById('table1').outerHTML;        document.getElementById('form_form_form_1234567890').action = "htmlTableToExcel.ashx"        document.getElementById('form_form_form_1234567890').submit();    }</script>

htmlTableToExcel.ashx:
<%@ WebHandler Language="C#" Class="htmlTableToExcel" %>using System;using System.Web;using Aspose.Cells;using System.IO;using System.Text;public class htmlTableToExcel : IHttpHandler{    public void ProcessRequest(HttpContext context)    {        string table = context.Request["table"];        //test info        if (table == null || table == "")        {            table = @"<table style='width: 200px' id='table1'>                <tr>                    <td style='width:30px;'>abc</td>                    <td style='width:80px;'>123</td>                    <td style='width:90px;'>这是测试信息</td>                </tr>            </table>";        }        MemoryStream stream = new MemoryStream();          StreamWriter writer = new StreamWriter( stream );          writer.Write( table );          writer.Flush();                    //加载选项,html,否则会出错        LoadOptions lo = new LoadOptions(LoadFormat.Html);        Workbook wb = new Workbook(stream, lo);        //输出到浏览器        wb.Save(context.Response, "output.xls", ContentDisposition.Attachment, new XlsSaveOptions(SaveFormat.Excel97To2003));    }    public bool IsReusable    {        get        {            return false;        }    }}


以上为简单的测试代码,经检验可以生成excel文件,只是格式方面像边框、宽度什么的就没有了,合并单元格什么的能保留;要是要求不高就将就用着吧。
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