How to get the length of a collection in <c:foreach > tags in jsp

Use the Length property value of the prefix property of the jstl tag functions

1. First import the JSTL function label on the JSP page

<% @ taglib Prefix = " fn " URI = " http://java.sun.com/jsp/jstl/functions " %>

2. For example, set to Messagelist

<items= "${messagelist}"= "message">        <h3>${fn:length (messagelist)}</h3>  </ C:foreach >

This will output the length of the Messagelist collection!

3. Note the difference between the Count property and the following

<items= "${messagelist}"= "message"  varstatus= " Go ">       <h3>${go.count}</h3 >  </ C:foreach >  

Current: The item (in the collection) for this iteration.

Index: The current iteration of this iteration, starting at 0.

Count: The iteration count that is currently starting at 1 for this iteration.

First: Used to indicate whether the current iteration is the initial iteration, which is a Boolean type.

Last: Used to indicate whether the current iteration is the final iteration, which is a Boolean type.

The value of the Begin:begin property.

The value of the End:end property

The value of the Step:step property

How to get the length of a collection in <c:foreach > tags in jsp