Traversing a HashMap in JSP is similar to doing so in plain Java code. Utilize the following loop structure:
<div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false">String key = entry.getKey(); String value = entry.getValue(); // ...
}
While scriptlets were previously common, they are now regarded as poor practice. Instead, we recommend using JSTL, which provides the
<p><c:forEach items="${map}" var="entry"></p>
<div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false">Key = ${entry.key}, value = ${entry.value}<br>To resolve your specific problem:
<p><select name="country"></p>
<div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false"><c:forEach items="${countries}" var="country">
<option value="${country.key}">${country.value}</option>
</c:forEach>To make ${countries} accessible in the requested scope, use a Servlet or ServletContextListener.
Here are examples of using Servlet or ServletContextListener:
<pre class="brush:php;toolbar:false">Map<String, String> countries = MainUtils.getCountries(); request.setAttribute("countries", countries); request.getRequestDispatcher("/WEB-INF/page.jsp").forward(request, response);</p> <p>}<br>
Or:
<pre class="brush:php;toolbar:false">Map<String, String> countries = MainUtils.getCountries(); event.getServletContext().setAttribute("countries", countries);</p> <p>}<br>
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