JSTL foreach and if when labels are used

You need to include the following tag libraries and libraries in your JSP

<%@ taglib uri= "Http://java.sun.com/jsp/jstl/core" prefix= "C"%>//must <%@ taglib uri= "http://java.sun.com/jsp /jstl/fmt "prefix=" FMT "%>//need to format some parameters when used, not required

<%@ taglib prefix= "FN" uri= "http://java.sun.com/jsp/jstl/functions"%>//the function to be used when processing data, not required

1. Traversing list< objects >

<c:foreach items= "${list}" var= "list" varstatus= "status" >

${list.name}

</c:forEach>

2. Traverse list<string>

<c:foreach items= "${optlist}" var= "Optlist" varstatus= "status" >

${optlist}

</c:forEach>

3. Traverse list<map<string,string>>

<c:foreach var= "name" items= "${a}" > <c:foreach var= "entry" items= "${name}" > <c:out value= "${entry. Key} "/> <c:out value=" ${entry.value} "/> </c:forEach> </c:forEach>

4. Traverse the Map

<c:foreach items= "${map}" var= "Mymap" > <c:out value= "${mymap.key}"/> <c:out value= "${mymap. Value} "/> </c:forEach>

5.if use

First, add in the JSP

<c:if test= "${salary >" >   <p>my Salary is: <c:out value= "${salary}"/><p></c:if >

6.choose Label

<c:choose>

<c:when test= "${param<=2}" >

1 </c:when>

<c:when test= "${param>=2}" >

2 </c:when> <c:otherwise>

${param}

</c:otherwise> </c:choose>

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JSTL foreach and if when labels are used