java:struts2 tag ->iterator

Z时代
2024-01-10
分类：综合

java

ref url: http://www.roseindia.net/struts/struts2/struts2controltags/iterator-tag.shtml

In this section, we are going to describe the Iterator tag. Iterator tag is used to iterate over a value. An iterable value can be either of: java.util.Collection, java.util.Iterator.

Add the following code snippet into the struts.xml file.

struts.xml

<action name="iteratorTag" class="net.roseindia.iteratorTag"> <result>/pages/genericTags/iteratorTag.jsp</result></action>

Create an action class as shown:

iteratorTag.java

package net.roseindia;import com.opensymphony.xwork2.ActionSupport;import java.util.*;public class iteratorTag extends ActionSupport{ private List myList; public String execute()throws Exception{ myList = new ArrayList(); myList.add("Fruits"); myList.add("Apple"); myList.add("Mango"); myList.add("Orange"); myList.add("Pine Apple"); return SUCCESS; } public List getMyList(){ return myList; }}

The following example retrieves the value of the getMyList() method of the current object on the value stack and uses it to iterate over. The <s:property/> tag prints out the current value of the iterator.

iteratorTag.jsp

<%@ taglib prefix="s" uri="/struts-tags" %><html> <head> <title>Iterator Tag Example!</title> </head> <body> <h1>Iterator Tag Example!</h1> <s:iterator value="myList"> <s:property /> </s:iterator> </body></html>

Output of An Iterator Tag Example:

以上是 java:struts2 tag ->iterator 的全部内容，来源链接： utcz.com/z/390263.html

java:struts2 tag ->iterator

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