如何在iFrame的jsf页面中显示pdf文档

只需使用< iframe> 通常的方式：

<iframe src="/path/to/file.pdf"></iframe>

如果您的问题不在于PDF不在 WebContent ，而是位于磁盘文件系统中的其他位置，甚至位于数据库中，那么你基本上需要一个 Servlet 获得它的InputStream 并将其写入响应的 OutputStream ：

If your problem is rather that the PDF is not located in the WebContent, but rather located somewhere else in disk file system or even in a database, then you basically need a Servlet which gets an InputStream of it and writes it to the OutputStream of the response:

response.reset();
response.setContentType("application/pdf");
response.setContentLength(file.length());
response.setHeader("Content-disposition", "inline; filename=\"" + file.getName() + "\"");
BufferedInputStream input = null;
BufferedOutputStream output = null;

try {
    input = new BufferedInputStream(new FileInputStream(file), DEFAULT_BUFFER_SIZE);
    output = new BufferedOutputStream(response.getOutputStream(), DEFAULT_BUFFER_SIZE);

    byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
    int length;
    while ((length = input.read(buffer)) > 0) {
        output.write(buffer, 0, length);
    }
} finally {
    close(output);
    close(input);
}

这样你只需指向这个servlet :)例如：

This way you can just point to this servlet instead :) E.g.:

<iframe src="/path/to/servlet/file.pdf"></iframe>

您可以在这篇文章。

< iframe> 在JSF中运行正常，假设您使用的是JSF 1.2或更新版本。在JSF 1.1或更早版本中，您必须在< f：verbatim> $ c中包含普通的HTML元素，例如< iframe> $ c>以便它们将被带入JSF组件树，否则它们将在输出中脱位：

The <iframe> also works fine in JSF, assuming that you're using JSF 1.2 or newer. In JSF 1.1 or older you have to wrap plain vanilla HTML elements such as <iframe> inside a <f:verbatim> so that they will be taken into the JSF component tree, otherwise they will be dislocated in the output:

<f:verbatim><iframe src="/path/to/servlet/file.pdf"></iframe></f:verbatim>