Quick info for reference.
Loop through a Map and output the Key and Value data using;
<c:forEach items="${map}" var="entry">
Key: <c:out value="${entry.key}"/>
Value: <c:out value="${entry.value}"/>
</c:forEach>
If you have an object within the Key:Value pair, such as within an object Map
${map.key}
Then you can iterate over the above list using the code to get the Attribute data within the CustomerInformation object a follows;
<c:forEach items="${map.value}" var="customerInformation">
<tr>
<td>${customerInformation.firstName}</td>
</tr>
</c:forEach>
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Michael Cropper
Founder & Managing Director at Contrado Digital Ltd
Michael has been running Contrado Digital for over 10 years and has over 15 years experience working across the full range of disciplines including IT, Tech, Software Development, Digital Marketing, Analytics, SaaS, Startups, Organisational and Systems Thinking, DevOps, Project Management, Multi-Cloud, Digital and Technology Innovation and always with a business and commercial focus.
He has a wealth of experience working with national and multi-national brands in a wide range of industries, across a wide range of specialisms, helping them achieve awesome results. Digital transformation, performance and collaboration are at the heart of everything Michael does.