EchoAttributesTag.java
上传用户:bj_pst
上传日期:2019-07-07
资源大小:7353k
文件大小:2k
- /*
- * 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 jsp2.examples.simpletag;
- import javax.servlet.jsp.JspException;
- import javax.servlet.jsp.JspWriter;
- import javax.servlet.jsp.tagext.SimpleTagSupport;
- import javax.servlet.jsp.tagext.DynamicAttributes;
- import java.util.ArrayList;
- import java.util.Iterator;
- import java.io.IOException;
- /**
- * SimpleTag handler that echoes all its attributes
- */
- public class EchoAttributesTag
- extends SimpleTagSupport
- implements DynamicAttributes
- {
- private ArrayList keys = new ArrayList();
- private ArrayList values = new ArrayList();
- public void doTag() throws JspException, IOException {
- JspWriter out = getJspContext().getOut();
- for( int i = 0; i < keys.size(); i++ ) {
- String key = (String)keys.get( i );
- Object value = values.get( i );
- out.println( "<li>" + key + " = " + value + "</li>" );
- }
- }
- public void setDynamicAttribute( String uri, String localName,
- Object value )
- throws JspException
- {
- keys.add( localName );
- values.add( value );
- }
- }