/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package beans;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.SimpleTagSupport;
import java.util.HashMap;
import java.io.IOException;
/**
* SimpleTag handler that accepts a num attribute and
* invokes its body 'num' times.
*/
public class RepeatSimpleTag extends SimpleTagSupport {
private int num;
public void doTag() throws JspException, IOException {
for (int i=0; i
getJspBody().invoke(null);
}
}
public void setNum(int num) {
this.num = num;
}
}
web.xml
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
http://jakarta.apache.org/tomcat/jsp2-example-taglib
/WEB-INF/tags/jsp2-example-taglib.tld
javax.servlet.jsp.jstl.fmt.timeZone
US/Central
database-driver
org.gjt.mm.mysql.Driver
database-url
jdbc:mysql://localhost/forum?user=forumuser
http://java.sun.com/jstl/fmt
/WEB-INF/fmt.tld
http://java.sun.com/jstl/fmt-rt
/WEB-INF/fmt-rt.tld
http://java.sun.com/jstl/core
/WEB-INF/c.tld
http://java.sun.com/jstl/core-rt
/WEB-INF/c-rt.tld
http://java.sun.com/jstl/sql
/WEB-INF/sql.tld
http://java.sun.com/jstl/sql-rt
/WEB-INF/sql-rt.tld
http://java.sun.com/jstl/x
/WEB-INF/x.tld
http://java.sun.com/jstl/x-rt
/WEB-INF/x-rt.tld
http://java.jeffheaton.com/taglib/jstl/forum
/WEB-INF/forum.tld
/tlt
/WEB-INF/taglib.tld
jsp2-example-taglib.tld
<%@ taglib prefix="tags" uri="http://jakarta.apache.org/tomcat/jsp2-example-taglib"%>
JSP 2.0 Examples - Repeat SimpleTag Handler
JSP 2.0 Examples - Repeat SimpleTag Handler
This tag handler accepts a "num" parameter and repeats the body of the
tag "num" times. It's a simple example, but the implementation of
such a tag in JSP 2.0 is substantially simpler than the equivalent
JSP 1.2-style classic tag handler.
The body of the tag is encapsulated in a "JSP Fragment" and passed
to the tag handler, which then executes it five times, inside a
for loop. The tag handler passes in the current invocation in a
scoped variable called count, which can be accessed using the EL.
Result:
Invocation