<s:iterator value="#request.list" var="user">
    <tr>
        <td><s:property value="#user.id"/></td>
        <td><s:property value="#user.name"/></td>
        <td><s:property value="#user.address"/></td>
        <td><a href="#">删除</a> </td>
    </tr>

//加载所有按钮
$("#lookAll").click(function() {
   $.post("user!loadAll.action",null,function(res){
        $("#allRes").show();
    });
});

private List<User> list;

public void loadAll() {
    list = userService.loadAll();
    System.out.println(list.size());//已经确定list有值
    getRequest().setAttribute("list", list);//但在值栈和request中确没有值
}

//getter... setter...
public List<User> getList() {
    return list;
}
    
public void setList(List<User> list) {
    this.list = list;
}