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

问题描述

我写了一些生成动态PDF文件的动作。类似于：reports / reportGenerator.action

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

当我打电话给 reports / reportGenerator？param = dialy 它会打开在弹出窗口中生成pdf，然后我可以按打印按钮打开打印机对话框并打印出来。

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.

我现在要做的是打开打印机对话框直。因此，当我在完全生成pdf文件后调用 reports / reportGenerator？param = dialy 和时，打开打印机对话框。那可能吗？ （我知道不能跳过打印机对话框）

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：
操作是这样的：

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 KI找到答案：

Thanks to Alex K I found the answer:

根据 JRPdfExporterParameter.html＃PDF_JAVASCRIPT

您可以使用 PDF_JAVASCRIPT 属性添加javascript到生成它时的pdf。

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

所以我添加了

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

导出PDF并且工作正常

when exporting PDF and it worked

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