spring - Reusable component React js with java -

i'm new in react js. i'm trying improve current application based on spring. want use react js make reusable components. in jsps i've such kind of code.

<spring:message code="label.firstname" var="firstname"/> <input type="text" class="form-control" name="firstname" id="firstname" placeholder="${firstname}" data-v-notempty="true" maxlength="15"> 

as code resolves message messagesource. how handle type of code part of reusable component?

render react javascript on server side preferable. use java nashorn or call nodejs container.

or use client js , render in browser.