打印JasperReports客户端？ [英] Print JasperReports client-side?

问题描述

我开发了一个使用JasperReports的Web应用程序。我注意到报告是打印服务器端。

I have developed a web application that uses JasperReports. I noticed that the reports are printing server-side.

如何使报告打印在客户端（从Web浏览器）？

How do you make the reports print client-side (from the web browser)?

任何见解都会有所帮助。

Any insights will be helpful.

推荐答案

假设你有一个基于Servlet的架构：

Presuming you have a Servlets-based architecture:

1. 使用 HttpServletResponse response =获取 HttpServletResponse 实例的句柄this.getThreadLocalResponse（）; （例如）。


2. 设置各种标题以指示文件附件。

1. Get a handle on the HttpServletResponse instance with HttpServletResponse response = this.getThreadLocalResponse(); (for instance).
2. Set the various headers to indicate a file attachment.

HttpServletResponse response = getServletResponse();
response.setHeader( "Content-Description", "File Transfer" );
response.setHeader( "Content-Disposition", "attachment; filename=" +
  "report.pdf" );
response.setHeader( "Content-Type", "application/pdf" );
response.setHeader( "Content-Transfer-Encoding", "binary" );

配置 JRExporter （jre）以使用HttpServletRespone的输出流：

Configure the JRExporter (jre) to use the HttpServletRespone's output stream:

    jre.setParameter( JRExporterParameter.OUTPUT_STREAM, getOutputStream() );

执行报告。

浏览器将提示用户将报告另存为PDF文件。用户可以打印PDF。

The browser will prompt the user to save the report as a PDF file. The user can print the PDF.

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