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c# - 生成 PDF 时不应用 wkHtmlToPdf css

转载 作者：太空宇宙 更新时间：2023-11-04 09:19:56 25 4
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我有一个 MVC 应用程序，想使用 HTML 生成 PDF。在这里，我使用 wkHTMLtoPdf exe 来完成我的工作。

我使用 jquery 从客户端调用一个操作方法。然后它命中了下面的方法。

public FileContentResult ExportInvoiceASPDF(string invno)
        {
            try
            {
                Byte[] bytes;                
                var fullUrl = this.Url.Action("pdfCustomerInvoice", "Report", new { invNo = invno }, Request.Url.Scheme);
                bytes = WKHtmlToPdf(fullUrl);

                FileContentResult result = new FileContentResult(bytes, "application/pdf")
                {
                    FileDownloadName = "PriceNotification"
                };
                return File(result.FileContents, "application/pdf");
            }
            catch (Exception ex)
            {

                throw;
            }
        }

在这里我调用了 WKHtmlToPdf 函数来获取字节流。 (下面是从 stackoverflow 线程中提取的代码)

public byte[] WKHtmlToPdf(string url_input)
        {
            try
            {
                var fileName = " - ";
                var wkhtmlDir = ConfigurationSettings.AppSettings["wkhtmlDir"];//Directory of wkHtmltopdf exe
                var wkhtml = ConfigurationSettings.AppSettings["wkhtml"];//wkhtmltopdf exe location
                var p = new Process();

                url = url_input;

                p.StartInfo.CreateNoWindow = true;
                p.StartInfo.RedirectStandardOutput = true;
                p.StartInfo.RedirectStandardError = true;
                p.StartInfo.RedirectStandardInput = true;
                p.StartInfo.UseShellExecute = false;
                p.StartInfo.FileName = wkhtml;
                p.StartInfo.WorkingDirectory = wkhtmlDir;

                string switches = "";
                switches += "--print-media-type ";
                switches += "--margin-top 10mm --margin-bottom 10mm --margin-right 10mm --margin-left 10mm ";
                switches += "--page-size Letter ";
                p.StartInfo.Arguments = switches + " " + url + " " + fileName;               
                p.Start();

                //read output
                byte[] buffer = new byte[32768];
                byte[] file;
                using (var ms = new MemoryStream())
                {
                    while (true)
                    {
                        int read = p.StandardOutput.BaseStream.Read(buffer, 0, buffer.Length);

                        if (read <= 0)
                        {
                            break;
                        }
                        ms.Write(buffer, 0, read);
                    }
                    file = ms.ToArray();
                }

                // wait or exit
                p.WaitForExit(60000);

                // read the exit code, close process
                int returnCode = p.ExitCode;
                p.Close();

                return returnCode == 0 ? file : null;
            }
            catch (Exception ex)
            {

                // set your exceptions here
                return null;
            }
        }

这里我执行 View 。 (我要导出为 PDF 的页面)

public ActionResult pdfCustomerInvoice(string invNo)
        {
            var inv = _customerInvoiceService.GetCustomerInvoice(invNo);

            InvoiceSummaryReportsVM invRepVM = new InvoiceSummaryReportsVM();

           //My data assigning part going here

            return View(invRepVM);
        }

这是 pdfCustomerInvoice html。

@model Pro.Web.Models.ViewModels.InvoiceSummaryReportsVM

@{
    Layout = null;
}

<html>
<head>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">   
</head>
<body>

    <div class="center">
        <h2>Tax Invoice</h2>
    </div>

    <div class="row">
        <br />
        <br />
        <br />
        <br />
        <br />
    </div>

    <div class="row">
        <div class="col-md-6">

        </div>
        <div class="col-md-6">
            <div class="row">
                <div class="col-md-3">
                    @Html.LabelFor(model => model.InvoiceNo, htmlAttributes: new { @class = "control-label" })
                </div>
                <div class="col-md-3">
                    @Html.DisplayFor(model => model.InvoiceNo, new { htmlAttributes = new { @class = "form-control" } })
                </div>
            </div>


            <div class="row">
                <div class="col-md-3">
                    @Html.LabelFor(model => model.InvoiceDate, htmlAttributes: new { @class = "control-label" })
                </div>
                <div class="col-md-3">
                    @Html.DisplayFor(model => model.InvoiceDate, new { htmlAttributes = new { @class = "form-control" } })
                </div>
            </div>

            <div class="row">
                <div class="col-md-3">
                    @Html.LabelFor(model => model.AccountNo, htmlAttributes: new { @class = "control-label" })
                </div>
                <div class="col-md-3">
                    @Html.DisplayFor(model => model.AccountNo, new { htmlAttributes = new { @class = "form-control" } })
                </div>
            </div>

            <div class="row">
                <div class="col-md-3">
                    @Html.LabelFor(model => model.InvoiceStatementPeriod, htmlAttributes: new { @class = "control-label" })
                </div>
                <div class="col-md-3">
                    @Html.DisplayFor(model => model.InvoiceStatementPeriod, new { htmlAttributes = new { @class = "form-control" } })
                </div>
            </div>


        </div>

    </div>

    <div class="row">
        <div class="col-md-6">
            @Html.LabelFor(model => model.OpeningBalance, htmlAttributes: new { @class = "control-label" })
        </div>
        <div class="col-md-6">
            @Html.DisplayFor(model => model.OpeningBalance, new { htmlAttributes = new { @class = "form-control" } })
        </div>
    </div>

    <div class="row">
        <div class="col-md-6">
            @Html.LabelFor(model => model.InvoiceTotal, htmlAttributes: new { @class = "control-label" })
        </div>
        <div class="col-md-6">
            @Html.DisplayFor(model => model.InvoiceTotal, new { htmlAttributes = new { @class = "form-control" } })
        </div>
    </div>

    <div class="row">
        <div class="col-md-6">
            @Html.LabelFor(model => model.TaxAmount, htmlAttributes: new { @class = "control-label" })
        </div>
        <div class="col-md-6">
            @Html.DisplayFor(model => model.TaxAmount, new { htmlAttributes = new { @class = "form-control" } })
        </div>
    </div>

    <div class="row">
        <div class="col-md-6">
            @Html.LabelFor(model => model.TotalAmountPayable, htmlAttributes: new { @class = "control-label" })
        </div>
        <div class="col-md-6">
            @Html.DisplayFor(model => model.TotalAmountPayable, new { htmlAttributes = new { @class = "form-control" } })
        </div>
    </div>


</body>


</html>

问题是当我执行代码时，它生成了没有样式的 PDF。 (所有数据都向左对齐。)但是当我直接调用“pdfCustomerInvoice”方法时，html 带有正确的样式。

这里我有样式问题。请给我一个解决这个问题的方向。

最佳答案

看来 bootstrap 不会加载。尝试从您的文件系统链接 bootstrap css。

详情:https://stackoverflow.com/a/20357784/6589639

关于c# - 生成 PDF 时不应用 wkHtmlToPdf css，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/41545025/

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