如何在Java / Scala中创建PDF / DOCX文件？

Question

I am creating a web application which will accept some inputs from user (like name, age, address etc) and generate some predefined forms with filled information for user to download and print.

For example, an Application Form for driving license or something along those lines. The backend will have the format information about the document to be generated and other information will be gathered from user from front-end.

I am going to use Play Framework 2.5 for this and Java/Scala as programming language. But right now I am not aware if there are any free libraries/APIs that I can use to achieve this document generation.

I should be able to manipulate the font size, style, indentations, paragraphs, page borders, page numbers, alignments, document headers and footers, page size (A4, Legal etc) some other basic stuff. And I need documents in format that are widely supported for editing and printing purposes. Like PDF, DOCX for example. DOCX is preferred so user can edit something after downloading the document before taking a print out.

Answer 1

I have used the apache POI library to parse and create ms word documents (including docx) files:

http://www.tutorialspoint.com/apache_poi_word/apache_poi_word_quick_guide.htm

It's not amazing but it's the best I've found :)

Answer 2

I have used docx4j.jar which simply converts xhtml to docx.

What you can do for your requirement is save your format information as xhtml template and place input from form (like name,age,address etc) into the template at runtime.

This is a sample code to refer from this link

 public static void main(String[] args) throws Exception 
 {
        String xhtml= 
                "<table border=\"1\" cellpadding=\"1\" cellspacing=\"1\" style=\"width:100%;\"><tbody><tr><td>test</td><td>test</td></tr><tr><td>test</td><td>test</td></tr><tr><td>test</td><td>test</td></tr></tbody></table>";       

        // To docx, with content controls
        WordprocessingMLPackage wordMLPackage = WordprocessingMLPackage.createPackage();

        XHTMLImporterImpl XHTMLImporter = new XHTMLImporterImpl(wordMLPackage);

        wordMLPackage.getMainDocumentPart().getContent().addAll( 
                XHTMLImporter.convert( xhtml, null) );

        wordMLPackage.save(new java.io.File("D://sample.docx"));
}