at present, there is a need to read the text data in word or pdf documents, and then convert them into html strings,

html strings

. My current idea is:
use the file upload function of element-ui to upload a word or pdf document, then parse the file in the background,
form a html string, and then store it in the database

the backend uses the jfinal framework. The problem encountered in the limitation is how to read the text content in the document
using getRequest (). GetInputStream (); the method depends on the failure
before using the spring framework, there is a file.getInputStream (); the method
does not know how the jfinal framework is going to implement it.
I hope everyone can help.
Thank you very much