asp.net mvc实现html转PDF

说明：

1. 当传递的参数字符过多时需将其压缩才可以进行get的请求；
2. _domain是配置文件中的配置： ；
3. _hqPdfFilePath同样是配置文件的PDF保存路径；
4. HtmlToPdf.exe是一个程序，可以前往下载，下载地址：  https://download.csdn.net/download/qq_35481871/12197661
5. 在asp.net mvc中如何用return File实现下载文件时，需要注意的是将下载文件名进行编码Url.Encode(downName)，否则可能出现错误或文件名乱码

        protected static readonly string _domain = ConfigurationManager.AppSettings["Domain"];

        /// 

        /// 下载Pdf行程单
        /// 
        /// 
        /// 
        /// 
        /// 
        [HttpPost]
        public ActionResult DownSchedulePdf(string RouteBase, string RouteList, string DownName)
        {
            var downName = DownName + ".pdf";//下载名称
            var pdfname = "hq" + DateTime.Now.ToString("HHmmssffff") + ".pdf";//保存pdf名称            
            var _pdfFilePath = _hqPdfFilePath + pdfname;//pdf文件路径
            try
            {
                #region 压缩字符串
                byte[] b1 = Compress(RouteBase);
                var routeBase = Convert.ToBase64String(b1);

                byte[] b2 = Compress(RouteList);
                var routeList = Convert.ToBase64String(b2);
                #endregion

                var pageUrl = "";
                if (_mvcTest == "Y")
                {
                    pageUrl = "http://localhost" + Url.Action("SchedulePdf", "DownLoad", new { RouteBase = routeBase, RouteList = routeList });
                }
                else
                {
                    pageUrl = _domain + Url.Action("SchedulePdf", "DownLoad", new { RouteBase = routeBase, RouteList = routeList });
                }

                //判断是否有该路径 没有则创建
                if (!Directory.Exists(_hqPdfFilePath))
                {
                    Directory.CreateDirectory(_hqPdfFilePath);
                }
                
                #region 调用html转pdf接口
                //程序
                string str = Server.MapPath("~/Exes/HtmlToPdf.exe");
                //参数
                var arguments = " \"" + pageUrl + "\" " + _pdfFilePath;
                Process p = Process.Start(str, arguments);
                p.StartInfo.UseShellExecute = false;
                p.StartInfo.RedirectStandardInput = true;
                p.StartInfo.RedirectStandardOutput = true;
                p.StartInfo.RedirectStandardError = true;
                p.WaitForExit();//等待进程关闭或退出执行以下步骤
                p.Close();
                #endregion
            }
            catch (Exception e)
            {
                Log.InfoFormat("error:{0}", e.Message);
            }
            return File(_pdfFilePath, "text/plain", Url.Encode(downName));
        }