webwork2.2.6 Action里的List接收不到页面对象

Question

action实现了Preparable方法，并声明了一个对象List
eg：private List fcxmjzfpVoList = new ArrayList();
页面用： fcxmjzfpVoList[0].name
fcxmjzfpVoList[1].name

表单提交后
后台debug这个List，发现List的Size 正确，但是里面的对象全部为空，以前用Struts2这样做没问题的，但在webwork下如何配置才正确？
如何让webwork自动装配List？

谢谢

Answer 1

仔细检查下代码。关键点就这些，看是否是哪里的配置问题。webwork 自带showcase里有一个 editPersons 的 功能，代码如下，可以参考下；
[b]EditPerson.java[/b][code="java"]package com.opensymphony.webwork.showcase.person;

import com.opensymphony.xwork.ActionSupport;

import java.util.List;
import java.util.Iterator;
import java.util.ArrayList;

/**

• EditPerson *
• @author Rainer Hermanns

• @version $Id: EditPerson.java 2391 2006-03-12 17:03:21Z rainerh $
  */
  public class EditPerson extends ActionSupport {

  PersonManager personManager;
  List persons = new ArrayList();

  public void setPersonManager(PersonManager personManager) {
  this.personManager = personManager;
  }

  public List getPersons() {
  return persons;
  }

  public void setPersons(List persons) {
  this.persons = persons;
  }

  /**

  • A default implementation that does nothing an returns "success". *
  • @return {@link #SUCCESS} */ public String execute() throws Exception { persons.addAll(personManager.getPeople()); return SUCCESS; }

  /**

  • A default implementation that does nothing an returns "success". *

  • @return {@link #SUCCESS}
    */
    public String save() throws Exception {

    // Set people = personManager.getPeople();

    for ( Iterator iter = persons.iterator(); iter.hasNext();) {
    Person p = (Person) iter.next();
    personManager.getPeople().remove(p);
    personManager.getPeople().add(p);
    }
    return SUCCESS;
    }

}
[/code]
[b]EditPerson-conversion.properties[/b]
[code="java"]KeyProperty_persons=id
Element_persons=com.opensymphony.webwork.showcase.person.Person
CreateIfNull_persons=true[/code]
[b]xwork.xml[/b]
[code="java"]
editPeople.jsp

[/code]
[b]jsp[/b]
[code]<%@ taglib prefix="ww" uri="/webwork" %>

Edit Persons (batch-edit)

<table>
    <tr>
        <th>ID</th>
        <th>First Name</th>
        <th>Last Name</th>
    </tr>
    <ww:iterator id="p" value="persons">
        <tr>
            <td>
                <ww:property value="%{id}" />
            </td>
            <td>
                <ww:textfield label="First Name" name="persons(%{id}).name" value="%{name}" theme="simple" />
            </td>
            <td>
                <ww:textfield label="Last Name" name="persons(%{id}).lastName" value="%{lastName}" theme="simple"/>
            </td>
        </tr>
    </ww:iterator>
</table>

<ww:submit value="Save all persons"/>

/ww:form

• Create a new person
• List all people
• Jasper Report all people as PDF export

[/code]