Use of <fn:split(String, String)> and <fn:join(String, String)> Tag of JSTL
In this section we will learn how to use <fn:split>and
<fn:join> Tag of JSTL. These tags are used to split and join the specified
string according to the given delimeter.
<fn:split> It splits a string into an array of sub strings on the
basis of specified delimeter.
<fn:join> It joins all elements of an array into a string with the
specified separator.
| Syntax : |
java.lang.String[] split(java.lang.String,
java.lang.String) |
split_fnJstlTag.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %> <html>
<head>
<title>Example fn:split and fn:join tag of JSTL</title>
</head>
<body>
<c:set var="str1" value="This is first string"/>
<c:set var="str2" value="This|is|second|string"/>
<c:set var="str3" value="This|is+third*string"/>
<h4>tag fn:split(Here we will split the given string in
to array of string on the <br>basis of given delimeter)</h4>
<table width="50%" border="1">
<tr>
<th>Input String</th>
<th>Delimiter(s)</th>
<th>After split</th>
</tr>
<tr>
<td>${str1}</td>
<td>white space</td>
<td>
<c:forEach var="num" items="${fn:split(str1, ' ')}">
<c:out value="${num}" />
</c:forEach>
</td>
</tr>
<tr>
<td>${str2}</td>
<td>|</td>
<td>
<c:forEach var="num" items="${fn:split(str2, '|')}">
<c:out value="${num}" />
</c:forEach>
</td>
</tr>
<tr>
<td>${str3}</td>
<td>+|*</td>
<td>
<c:forEach var="num" items="${fn:split(str3, '+|*')}">
<c:out value="${num}" />
</c:forEach>
</td>
</tr
</table>
<h4>tag fn:split(Here we will join the splitted array of string
in to a single string <br>with the given separator)</h4>
<table cellpadding="5" border="1">
<tr>
<th>Separator</th>
<th>After join</th>
</tr>
<tr><c:set var="a1" value="${fn:split(str1, ' ')}" />
<td> white space</td>
<td><c:out value="${fn:join(a1, ' ')}" /></td>
</tr>
<tr><c:set var="a1" value="${fn:split(str2, '|')}" />
<td>|</td>
<td><c:out value="${fn:join(a1, ' | ')}" /></td>
</tr>
<tr><c:set var="a1" value="${fn:split(str3, '|+*')}" />
<td>***</td>
<td><c:out value="${fn:join(a1, ' *** ')}" /></td>
</tr>
</table>
</body>
</html>
|
This jsp code shows the following output :
