Aras SP9前端传递参数给后端方法使用

//前端JS
var doc = top.aras.createXMLDocument();
doc.loadXML("<body/>");
doc.documentElement.setAttribute("typeId",typeIdStr);
doc.documentElement.setAttribute("id",idStr);
var res = inn.applyMethod("xxx",doc.xml);
if(res.isError()){
        alert(res.getErrorString());
}else{
        var result = res.getResult();
}

Sever端

var inn = this.getInnovator();
var typeId = inn.getPropertyAttribute("body","typeId");
var id = inn.getPropertyAttribute("body","id");