• Pdf操作(HTML转PDF,PDF直接网页连接打印机)


    Pdf导出的操作:引用TuesPechkin.dll和TuesPechkin.Wkhtmltox.AnyCPU.dll程序集,新建PDF静态类 PDFConverter,在web.config配置保存dir

     /// <summary>
        /// pdf转换
        /// </summary>
        public static class PdfConvert {
            /// <summary>
            /// staticDeploymentPath
            /// </summary>
            private static readonly string StaticDeploymentPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "wkhtmltopdf");
    
            /// <summary>
            /// CreateWkhtmltopdfPath
            /// </summary>
            public static void CreateWkhtmltopdfPath() {
                if (Directory.Exists(StaticDeploymentPath) == false) {
                    Directory.CreateDirectory(StaticDeploymentPath);
                }
            }
    
            /// <summary>
            /// converter
            /// </summary>
            public static IConverter Converter =
               new ThreadSafeConverter(
                    new RemotingToolset<PdfToolset>(
                        new WinAnyCPUEmbeddedDeployment(
                            new StaticDeployment(StaticDeploymentPath)
                        )
                    )
                );
    
        }
    public HttpResponseMessage CreateFormPdf(WebTaskFormDetail wtData) {
                try {
                    string fileName = AesCode.AesDecrypt(wtData.TaskId) + "_" + wtData.FormId;
                    var baseUrl = GetBaseUrl();
                    string url = baseUrl + UrlFormTemplate;
                    HttpClient client = new HttpClient();
                    var template = client.GetStringAsync(url).Result;
                    string page = "form.html";
                    url = baseUrl + UrlFormContentDir + page;
                    var content = client.GetStringAsync(url).Result;
    
                    var json = JsonConvert.SerializeObject(wtData).Replace(@"", @"\");
    
                    string html = template.Replace("[[content]]", content).Replace("[[json]]", json);
    
                    string path = HttpContext.Current.Request.PhysicalApplicationPath + ZxjcAttachmentDir + @"html";
                    if (!Directory.Exists(path)) {
                        Directory.CreateDirectory(path);
                    }
                    StreamWriter sw = new StreamWriter(path + fileName + ".html", false, Encoding.UTF8);
                    sw.Write(html);
                    sw.Close();
    
                    path = ZxjcAttachmentDir + @"pdf";
                    if (!Directory.Exists(Path.Combine(PhysicalApplicationPath(), path))) {
                        Directory.CreateDirectory(Path.Combine(PhysicalApplicationPath(), path));
                    }
                    var savePath = path + fileName + ".pdf";
                    byte[] pdfBuf = null;
                    CreatePdf(Path.Combine(PhysicalApplicationPath(), savePath), fileName, ref pdfBuf);
                    var downloadUrl = new Uri(baseUrl + ZxjcAttachmentDir.Replace(@"", "/") + "pdf/" + fileName + ".pdf");
                    //关联任务附件
                    var attachmentInfo = new AttachmentInfo {
                        AttachmentName = wtData.FormName + ".pdf",
                        Path = savePath,
                        Url = downloadUrl.ToString(),
                        Description = wtData.Description
                    };
                    SaveAttachment(attachmentInfo,Convert.ToInt32(AesCode.AesDecrypt(wtData.TaskId)));
    
                    HttpResponseMessage response = new HttpResponseMessage { Content = new StreamContent(new MemoryStream(pdfBuf)) };
                    response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment");
                    response.Content.Headers.ContentLocation = downloadUrl;
                    response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/pdf");
                    return response;
                }
                catch (Exception ex) {
                    throw;
                }
            }
    
     private void CreatePdf(string path, string fileName, ref byte[] pdfBuf) {
                var document = new HtmlToPdfDocument {
                    GlobalSettings ={
                    ProduceOutline = true,
                    DocumentTitle = "web 表单",
                    PaperSize = PaperKind.A4,
                    Margins ={All = 1.375,Unit = Unit.Centimeters}
                    //Margins = new MarginSettings(50,50,50,50)
                    },
                    Objects = {
                        new ObjectSettings {  PageUrl = this.GetBaseUrl() + ZxjcAttachmentDir.Replace(@"", "/") + "html/" + fileName + ".html" }
                    }
                };
                pdfBuf = PdfConvert.Converter.Convert(document);
                File.WriteAllBytes(path, pdfBuf);
            }
    
     private static string PhysicalApplicationPath() {
                return HttpContext.Current.Request.PhysicalApplicationPath;
            }

     直接在浏览器链接打印机打印

     private void CreatePdf(string path, string fileName, ref byte[] pdfBuf) {
                var pageUrl = this.GetBaseUrl() + ZxjcAttachmentDir.Replace(@"", "/") + "html/" + fileName + ".html";
                var document = new HtmlToPdfDocument {
                    GlobalSettings ={
                    ProduceOutline = true,
                    Copies=1,
                    DPI = 1200,
                    DocumentTitle = "web 表单",
                    PaperSize = PaperKind.A4,
                    Orientation = GlobalSettings.PaperOrientation.Portrait,
                    OutputFormat = GlobalSettings.DocumentOutputFormat.PDF,
                    Margins ={All = 1.375,Unit = Unit.Centimeters}
                    //Margins = new MarginSettings(50,50,50,50)
                    },
                    Objects = {
                        new ObjectSettings {
                            PageUrl = pageUrl,
                            //HtmlText = docHtml,
                            WebSettings = new WebSettings {
                                DefaultEncoding = "utf-8",
                                LoadImages =true,
                                PrintBackground =true,
                                EnableJavascript =true ,
                                PrintMediaType =true,
                                EnablePlugins = true
                            },
                            //LoadSettings =new LoadSettings {
                            //    BlockLocalFileAccess = false,
                            //    RenderDelay=5000,
    
                            //}
                        }
                    }
                };
                pdfBuf = PdfConvert.Converter.Convert(document);
                File.WriteAllBytes(path, pdfBuf);
            }
    

      

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  • 原文地址:https://www.cnblogs.com/ArsenalArsig/p/9075166.html
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