Grails - Read, customize and attach a word document

Question

I need to do the following (with Grails):

1. Read a word template
2. Add user details (e.g. name, last name) to the document
3. Send the customized word by mail

I am thinking in Apache POI to read .doc, then in the document I will have keywords e.g."°!"#$" and make the customization. Then I will create the document, send it (with Grails plugin) and erase the document from the server

Is this a good approach or I am forgetting something? Thank you very much

EDIT: DOCx4j: My docx operations are simple, so I can go with the "approach 1" in the variable replace, but for some reason the next sample is not working for me: https://github.com/plutext/docx4j/blob/master/src/samples/docx4j/org/docx4j/samples/VariableReplace.java

I'm getting a:

| Error 2014-03-27 09:10:23,640 [http-bio-9000-exec-5] ERROR errors.GrailsExceptionResolver  - SAXParseException occurred when processing request: [POST] /Estrategia/pasantiaCorta/generarDocumento
Content is not allowed in prolog.. Stacktrace follows:
Message: Content is not allowed in prolog.

In the line:

// Approach 1 (from 3.0.0; faster if you haven't yet caused unmarshalling to occur):

documentPart.variableReplace(mappings);

Answer 1

Sure, you can use POI or docx4j. For either, you'd be much better off using docx rather than the legacy binary doc format.

For docx4j (my project), see creating-word-docx-documents-dynamically-from-grails

At your step 2 (add user details), there are a variety of approaches you can use.