生成pdf后如何打开打印对话框? [英] How to open print dialog after pdf generated?

问题描述

我编写了一些动态生成 PDF 文件的操作.类似:reports/reportGenerator.action

I wrote some actions which generates dynamically PDF files. something like: reports/reportGenerator.action

当我调用 reports/reportGenerator?param=dialy 时，它会在弹出窗口中打开生成的 pdf，然后我可以按打印按钮打开打印机对话框并打印它.

when I call reports/reportGenerator?param=dialy it will open the generated pdf in a popup, and then I can press the print button to open the printer dialog and print it.

我现在要做的是直接打开打印机对话框.因此，当我调用 reports/reportGenerator?param=dialy 和 pdf 文件完全生成后，打开打印机对话框.那可能吗?(我知道打印机对话框不能跳过)

what I want to do now is to open the printer dialog directly. so when I call reports/reportGenerator?param=dialy and after the pdf file is fully generated, open the printer dialog. is that possible? (I know the printer dialog can not be skipped)

更多信息:动作是这样的:

more info: action is something like this:

sout = response.getOutputStream();
response.setContentType("application/pdf");
response.setHeader("Content-disposition","inline; filename="myReport.pdf"");
sout.write(pdfBytes);
sout.flush();
sout.close();

推荐答案

感谢 Alex K 我找到了答案:

Thanks to Alex K I found the answer:

根据JRPdfExporterParameter.html#PDF_JAVASCRIPT

您可以在生成 pdf 时使用 PDF_JAVASCRIPT 属性将 javascript 添加到 pdf 中.

you can use PDF_JAVASCRIPT property to add javascript to the pdf when you generate it.

所以我加了

JRPdfExporter exporter = new  JRPdfExporter();
exporter.setParameter(JRPdfExporterParameter.PDF_JAVASCRIPT, "this.print();");

当导出 PDF 时它起作用了

when exporting PDF and it worked

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