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Thread: struts: accessing list-backed properties in JSP

  1. #1
    Join Date
    Apr 2005

    Exclamation struts: accessing list-backed properties in JSP

    hi. im trying to make a dynamic form(request time) using list-backed property, following the struts user guide


    public FooForm extends ActionForm {

    private final List values = new ArrayList();

    public void setValue(int key, Object value) {
    values.set(key, value);

    public Object getValue(int key) {
    return values.get(key);

    however, im not sure of what they mean by:

    "In your presentation pages, you access individual entries in a list-backed property by using a different special notation: listname[index]. The braces in the bean property name indicate that the bean property named listname is indexed (probably backed by a List), and that Struts should look for get/set methods that take an index parameter in order to find the correct sub-property value."

    how can i access the property? heres my jsp:

    <%@ taglib uri="/tags/struts-html" prefix="html" %>
    <%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
    <%@page isELIgnored = "false" %>

    <html:form action="/indextest">

    <c:forEach begin="0" end="2" var="cnt">
    <html:text property="listname[${cnt}]"/>


    any help appreciated...

  2. #2
    Join Date
    Dec 2002
    Calgary, Canada
    what you should do is create a bean/class with 2 properties in it e.g
    public class User{
     private String name;
     private String id;
     public String getName(){
       return this.name;
     public void setName(String name){
       this.name = name;
    public String getId(){
       return this.Id;
     public void setId(String id){
       this.id = id;
    once you have that thne you create this class and set its properties once you have that then you put these in a list and then when you acess it in the struts page you access it by the name of properties such as name and id


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