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(NPOI)Excel转HTML

发布:2020/2/12 13:37:11作者:管理员 来源:本站 浏览次数:1347

很简单直接上代码:

using NPOI.HSSF.UserModel;
using NPOI.SS.UserModel;
using NPOI.XSSF.UserModel;
using NPOI.SS.Converter;

       /// <summary>
        /// (NPOI)Excel转HTML
        /// </summary>
        /// <param name="HtmlName">HTML文件的的名称(不带后缀)</param>
        /// <param name="Filename">需要转换Excel的绝对路径</param>
        /// <returns></returns>
        public string ExcelToHtml(string HtmlName, string  Filename)
        {
            IWorkbook workbook;
            //获取后缀名称
            string fileExt = Path.GetExtension(Filename).ToLower();
            //判断是否可以打开该文件,如果出错则文件已经打开或者有异常
            try
            {
                System.IO.FileStream stream = System.IO.File.OpenWrite(Filename);
                stream.Close();
            }
            catch
            {
                return null;
            }
            using (FileStream fs = new FileStream(Filename, FileMode.Open, FileAccess.Read))
            {
                //如果是XLSX格式选择XSSFWorkbook ,如果是XLS格式选择HSSFWorkbook
                if (fileExt == ".xlsx") { workbook = new XSSFWorkbook(fs); } else if (fileExt == ".xls") { workbook = new HSSFWorkbook(fs); } else { workbook = null; }
                if (workbook == null) { return null; }
                
            }

            ExcelToHtmlConverter eth = new ExcelToHtmlConverter();

            // 设置输出参数
            eth.OutputColumnHeaders = true; //是否输出ColumnHeader
            eth.OutputHiddenColumns = false;//是否在表头插入一行序列号
            eth.OutputHiddenRows = false;//是否输出HiddenRow
            eth.OutputLeadingSpacesAsNonBreaking = true; //不清楚
            eth.OutputRowNumbers = false;//是否在列头插入一行序列号
            eth.UseDivsToSpan = false; //不清楚


            // 加载Excel文件
            eth.ProcessWorkbook(workbook);

           // 保存文件值当前路径

            string  htmlFile =Application.StartupPath + "\\" + HtmlName + ".html";
            eth.Document.Save(htmlFile);
            return htmlFile;

}
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