spring dwr 复杂会合一对多传值

//ArrayList中的对象是A,A与B为一对多关系
<allow>
 <create creator="spring" javascript="aService"> 
   <param name="beanName" value="aService"></param> 
          <include method="import"></include>
  </create> 
        <convert converter="bean" match="com.jlins.A" />
        <convert converter="bean" match="com.jlins.B" />   
  </allow>
  <signatures> 
   <![CDATA[ 
      import java.util.ArrayList; 
      import com.jlins.A;    //不能少
      import com.jlins.B;    //不能少
      aService.import(ArrayList<A>); //注意aService 为spring创建
   ]]> 
</signatures> 
//js list格式
var list ={a:[{ID:pid,name:pname,b:[{id:id,name:name}]}]}