we have an application that needs to send out various different types of template email. The current code is very cumbersome and not very flexible. Does any one konw of a library to help with this type of work... We are looking for some kind of templating library for email.
9 Answers
I ran into a similar problem about a year ago. In our case, our front end developers were all familiar with JSP, and I really did not want to throw another templating engine into the mix. I wanted something that relied on the servlet container's JSP processor to generate e-mail content for me.
It's fairly straightforward:
- I had to have a JSP page in my application (you can put it in /WEB-INF if you don't want it externally accessible).
- I wrote a custom
HttpServletResponseandServletOutputStreamthat captures content written by the servlet container and turns it into a String, and relied onRequestDispatcher.include(...)to make a "request" to the template JSP (I also wrote a customHttpServletRequestto isolate the original request from mutation). - Because this is a bit of a hack, and not the way the servlet API was intended to be used, I encapsulated all this in a utility class, so that all the client code has to do is pass in the path to the JSP template, and get back the processed content.
I prefer Freemarker, here over Velocity; imo, Freemarker much simpler in this case.
If you are using Spring, then you may be interested in, Freemarker in Spring MVC.
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