.net导出HTML为PDF格式文件

最新推荐文章于 2024-06-01 09:23:45 发布

weixin_33712881

最新推荐文章于 2024-06-01 09:23:45 发布

阅读量253

点赞数

CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/huanghai223/archive/2012/05/18/2507434.html

本文介绍了一种使用.NET将HTML转换为PDF的方法。首先通过wkhtmltopdf工具将指定URL的HTML内容生成PDF文件，然后提供下载功能。此过程涉及设置wkhtmltopdf路径、构建进程参数、启动进程并读取输出等步骤。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

.net导出HTML为PDF格式文件

第一步：生成PDF文件

protected void LinkButtonPrint_Click(object sender, EventArgs e)
        {
            try
            {
                                 string contractContentUrl = GetWebVirtualPath(HttpContext.Current) + "PrintPDF?kind=" + this.Kind.Replace("+", "%2B") + "&NO=" + this.No.ToString().Replace("+", "%2B");

string pdfFilePath = FormHelp.GetFormConfig(this.FormKind, "PDF_FILE");
string pdfFileName = pdfFilePath + Guid.NewGuid().ToString() + ".pdf";

                string path = Server.MapPath(Request.ApplicationPath);
                string pdfConverter = path + @"\bin\wkhtmltopdf.exe";
                if (!System.IO.File.Exists(pdfConverter))
                    return;

                Process printProcess = new Process();
                printProcess.StartInfo.FileName = pdfConverter;
                string printArguments = "\"{0}\" \"{1}\"";

                contractContentUrl = contractContentUrl.Replace("https:", "http:");
                printArguments = string.Format(printArguments, contractContentUrl, pdfFileName);
                printProcess.StartInfo.Arguments = printArguments;
                printProcess.StartInfo.UseShellExecute = false;
                printProcess.StartInfo.RedirectStandardInput = true;
                printProcess.StartInfo.RedirectStandardOutput = true;
                printProcess.StartInfo.RedirectStandardError = true;
                printProcess.StartInfo.CreateNoWindow = false;
                printProcess.Start();
                string output = printProcess.StandardOutput.ReadToEnd();
                if (!string.IsNullOrEmpty(output))
                {
                    LogHelp.WriteInfoLog(this.FormKind, output);
                }
                printProcess.WaitForExit();

System.Threading.Thread.Sleep(500);

                DownLoadPDF(pdfFileName);
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

第二步：下载PDF文件

/// <summary>
        /// download pdf
        /// </summary>
        /// <param name="fileName"></param>
        private void DownLoadPDF(string fileName)
        {
            //string PDFFilePath = Server.MapPath("../PDFFile/") + Request.QueryString["FileName"].Trim() + ".PDF";
            FileStream fs = new FileStream(fileName, FileMode.Open);
            BinaryReader br = new BinaryReader(fs);
            byte[] BynFile = new byte[br.BaseStream.Length];
            br.BaseStream.Seek(0, SeekOrigin.Begin);
            br.Read(BynFile, 0, (int)br.BaseStream.Length);
            fs.Close();

            Response.Buffer = true;
            Response.Clear();
            Response.Charset = "UTF-8";
            Response.ContentEncoding = System.Text.Encoding.UTF8;
            Response.AddHeader("Content-Disposition", "attachment;filename=" + Server.UrlEncode(ContractName + ".pdf"));
            //Response.AddHeader("Content-Length", file.Length.ToString());
            Response.ContentType = "application/pdf";
            Response.BinaryWrite(BynFile);

            System.IO.FileInfo file = new System.IO.FileInfo(fileName);
            if (File.Exists(fileName))
            {
                File.Delete(fileName);
            }

            Response.Flush();
            Response.End();
        }

通过下面的组件进行HTML导出PDF格式文件：

/Files/huanghai223/wkhtmltopdf.rar