You need to add two columns to the display:table
one for the edit and another for the delete URLs. Also add uid="row"
attribute to the tag.
<s:url var="editUrl" action="editHyper">
<s:param name="Employee_id" value="%{#attr.row.Employee_id}" />
</s:url>
<s:url var="deleteUrl" action="delete">
<s:param name="Employee_id" value="%{#attr.row.Employee_id}" />
</s:url>
<display:column title="Edit">
<s:a href="%{#editUrl}">Edit</s:a>
</display:column>
<display:column title="Delete">
<s:a href="%{#deleteUrl}">Delete</s:a>
</display:column>
A complete example you can find here: Pagination in Struts 2 Using display tag.