java - Displaying on HTML a byte array (PDF file) returned as JSON

Question

I have a PDF file that's being read through Java and returned as a byte array in a JSON response.

I want to find a way to parse those bytes from the PDF file using:

FileUtil.getFileBytes(fileToRead)

on the client side. Is there any way to render and display the PDF?

I know that I can put the file on a public server, but this may change based on user configuration, so I want to read the PDF on Java side and render the bytes on client side using Javascript or any jQuery plugin.

Any thoughts?

Answer 1

查看 html 中的内联内容。看看这个内联图像的例子：Embedding Base64 Images

如果浏览器知道如何显示它（可能只有 chrome），它就会显示。

Answer 2

如果您想从网络连接读取字节并将它们制作成 PDF，您可以使用 Java I/OInputStreams和OutputStreams.

首先，使用InputStream.

然后，将它们写到一个新的文件中FileOutputStream。

最后，调用 PDF 阅读器应用程序来显示 PDF。应该有几个。

我知道这个答案有点含糊，如果我误解了你的问题，我很抱歉，但我希望这能给你一些指导！