how to access array list in jsp , if i pass bean
First of all, getarrayVals()
should be spelt getArrayVals()
, and it should return a List, not a String, obviously.
Now suppose the servlet or action sets an attribute "b" of type B like this :
request.setAttribute("b", theBInstance);
and then forwards to a JSP, you can access the list in the attribute "b" like this:
${b.arrayVals}
You must refer to the B instance by the name of the request attribute, not by its class name. If you name the attribute foo, then use must use ${foo.arrayVals}
.
This will simply print to toString of the list. If you want to get the element at index 3 of the list, you can use
${b.arrayVals[3]}
And if you want to iterate over the list elements, use the c:forEach construct:
<c:forEach items="${b.arrayVals}" var="element">
The element value is ${element} <br/>
</c:forEach>
pradeep cs
I am pradeep working as lead. having 6.5yrs exp in various skillset Java/J2EE,Webservices, Javascript frameworks,XML,struts,spring
Updated on March 05, 2020Comments
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pradeep cs about 4 years
I am new to JSTL. How can i use JSTL
<c:foreach>
inside jsp if i pass below sample beanclass B{ private String value=""; private ArrayList arrayVals; public String getvalue(){ return value; } public String getarrayVals(){ return arrayVals; } }
I will pass Bean "B" only. I tried like below, but jsp not compiled. Please help me.
<c:forEach items="${B.getarrayVals}" var="book"> <c:out value="{book.title}"/> </c:forEach>