Replace part of a string in a Struts2 tag

Is it possible to replace the value of a property in Struts2? I want to resolve a mimetype image, and it would be really useful to do something like:

<img src="<s:property value='%{mimetype.replace("/", ".")}'/>" ...

Can I do something on the fly lik开发者_JAVA技巧e this?

Thanks!

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<img src="<s:property value='%{mimetype.replace("/", ".")}'/>

Yes it's possible ognl allows to use string mehthods directly