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public class Person {
int id;
String name;
int age;
float
height;
}
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public class MyAction {
public List getPeopleList() { … }
public
void setPeopleList( List peopleList ) { … }

}
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<s:form action="update"
method="post" >
       <s:iterator value="peopleList" status="stat">
       <s:hidden name="peopleList[%{#stat.index}].id"
value="%{peopleList[#stat.index].id}"/>
       <s:textfield label="Name"
name="peopleList[%{#stat.index}].name"
value="%{peopleList[#stat.index].name}"/>
       <s:textfield label="Age"
name="peopleList[%{#stat.index}].age"
value="%{peopleList[#stat.index].age}" />
       <s:textfield
label="Height" name="peopleList[%{#stat.index}].height"
value="%{peopleList[#stat.index].height}"/>
       <br/>
       </s:iterator>
        <s:submit value="Update"/>
</s:form>
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