How to write content to a new file (overwrite if already existing) in Groovy.

write_file.groovy

//
// Write the mock request payload to a file for checking later...
// newWrite() is the important it to ensure you get a *new* file each time.
//
def filename = "C:\\MyScratchFolder\\soapUI projects\\Testing\\procon\\mock_po_activity_request.xml"
def file = new File(filename)
def w = file.newWriter() 

w << mockRequest.requestContent
w.close()

This helped me today :) Make it ever groovier (closes writer for you):

file.newWriter().withWriter {
  w << mockRequest.requestContent
}

thank you!

Small typo above:

file.newWriter().withWriter { w ->
  w << mockRequest.requestContent
}

Yes yes yes, Thank You !

Thanks a lot!

Works. Thanks!

I"m a Groovy newb and this was really helpful to me, thanks!

Nice! This was a great help. The comments were super useful too.

This helped me too, thanks a lot

Thanks

Thank you! For future readers who get here from a web search (like I did), I think it's unnecessary to use both newWriter and withWriter in the examples above. Using just withWriter will create the file if it doesn't exist yet, or replace the existing content if it already exists:

file.withWriter { w ->
  w << mockRequest.requestContent
}

Similarly, using withWriterAppend will create the file if it doesn't exist (just like above), or append to the existing content if it already exists:

file.withWriterAppend { w ->
  w << mockRequest.requestContent
}

Note that when using withWriter or withWriterAppend you can also specify a specific character encoding for the writer, and doing so is recommended as a best practice.

file.withWriter('UTF-8') { w ->
  w << mockRequest.requestContent
}