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html实现pdf预览打印机,Pdf操作（HTML转PDF，PDF直接网页连接打印机）

编程日记 2024-03-05 21:30:00

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

///

///pdf转换///

public static classPdfConvert {///

///staticDeploymentPath///

private static readonly string StaticDeploymentPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "wkhtmltopdf");///

///CreateWkhtmltopdfPath///

public static voidCreateWkhtmltopdfPath() {if (Directory.Exists(StaticDeploymentPath) == false) {

Directory.CreateDirectory(StaticDeploymentPath);

}

}///

///converter///

public static IConverter Converter =

newThreadSafeConverter(new RemotingToolset(newWinAnyCPUEmbeddedDeployment(newStaticDeployment(StaticDeploymentPath)

)

);

}

publicHttpResponseMessage CreateFormPdf(WebTaskFormDetail wtData) {try{string fileName = AesCode.AesDecrypt(wtData.TaskId) + "_" +wtData.FormId;var baseUrl =GetBaseUrl();string url = baseUrl +UrlFormTemplate;

HttpClient client= newHttpClient();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,refpdfBuf);var downloadUrl = new Uri(baseUrl + ZxjcAttachmentDir.Replace(@"\", "/") + "pdf/" + fileName + ".pdf");//关联任务附件

var attachmentInfo = newAttachmentInfo {

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(newMemoryStream(pdfBuf)) };

response.Content.Headers.ContentDisposition= new ContentDispositionHeaderValue("attachment");

response.Content.Headers.ContentLocation=downloadUrl;

response.Content.Headers.ContentType= new MediaTypeHeaderValue("application/pdf");returnresponse;

}catch(Exception ex) {throw;

}

}private void CreatePdf(string path, string fileName, ref byte[] pdfBuf) {var document = newHtmlToPdfDocument {

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 stringPhysicalApplicationPath() {returnHttpContext.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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html实现pdf预览打印机,Pdf操作（HTML转PDF，PDF直接网页连接打印机）

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