Flex HttpService的参数使用

HttpService
  <!--提交修改信息-->
<mx:HTTPService id="editOk" fault="Alert.show('抱歉，连接失败','系统提示');"  useProxy="false" url="/editAccount.do?actionTarget=commitFlex"  result="editSubmitOkResult(event);" resultFormat="e4x">
</mx:HTTPService>
由于在HttpService中定义大量 mx:request 太麻烦,例如
//提交修改
public function editSubmitOk():void
{
  var params:URLVariables=new URLVariables();
//设置参数
params.categoryIds=myModel._sUA.allCategoryIds;
params.categoryTitles=myModel._sUA.allCategoryIds;
params.editing=true;
params.email=this.email.text;
params.enabled=this.enable.selected?true:false;
params.fullname=this.fullName.text;
params.realmName=this.startConfigure.selectedLabel.toString();
params.roles=myModel_._sUA.userRoles;
params.selectedTab="details";
params.setPassword=this.openChangePassword.selected?true:false;
//用户属性定义
var arryForUpdateAttributs:ArrayCollection=new  ArrayCollection();
for each(var uA:_UserAttributeValueItems in myModel_._sUA.userAttributeValueItems)
{
if(uA.categoryId=="安全问题")
{
if(uA.label=="最喜欢的电视节目")
uA.value=this.favoritTV.text;
if(uA.label=="母亲的名字")
uA.value=this.motherName.text;
if(uA.label=="最喜欢的书籍")
uA.value=this.favoritBook.text;
if(uA.label=="出生地或者日期")
uA.value=this.bornAddress.text;
if(uA.label=="父亲的名字")
uA.value=this.fatherName.text;
}
else if(uA.categoryId=="配置")
{
if(uA.label=="启动配置")
uA.value=(this.startConfigure.selectedItem as _Pair).value;
}
}
params.userAttributeValueItems=myModel_._sUA.userAttributeValueItems;
params.username=this.uName.text;
editOk.send(params);//发出请求
}