ShuffleSimpleTag.java
上传用户:bj_pst
上传日期:2019-07-07
资源大小:7353k
文件大小:3k
- /*
- * 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.tagext.JspFragment;
- import javax.servlet.jsp.tagext.SimpleTagSupport;
- import java.util.HashMap;
- import java.io.IOException;
- /**
- * SimpleTag handler that accepts takes three attributes of type
- * JspFragment and invokes then in a random order.
- */
- public class ShuffleSimpleTag extends SimpleTagSupport {
- private JspFragment fragment1;
- private JspFragment fragment2;
- private JspFragment fragment3;
- public void doTag() throws JspException, IOException {
- switch( (int)(Math.random() * 6) ) {
- case 0:
- fragment1.invoke( null );
- fragment2.invoke( null );
- fragment3.invoke( null );
- break;
- case 1:
- fragment1.invoke( null );
- fragment3.invoke( null );
- fragment2.invoke( null );
- break;
- case 2:
- fragment2.invoke( null );
- fragment1.invoke( null );
- fragment3.invoke( null );
- break;
- case 3:
- fragment2.invoke( null );
- fragment3.invoke( null );
- fragment1.invoke( null );
- break;
- case 4:
- fragment3.invoke( null );
- fragment1.invoke( null );
- fragment2.invoke( null );
- break;
- case 5:
- fragment3.invoke( null );
- fragment2.invoke( null );
- fragment1.invoke( null );
- break;
- }
- }
- public void setFragment1( JspFragment fragment1 ) {
- this.fragment1 = fragment1;
- }
-
- public void setFragment2( JspFragment fragment2 ) {
- this.fragment2 = fragment2;
- }
-
- public void setFragment3( JspFragment fragment3 ) {
- this.fragment3 = fragment3;
- }
- }