form不提交问题

var confirmOrderForm=document.getElementById("confirmOrderForm");
var url="${pageContext.request.contextPath }/confirmOrder/confirmOrder.action?

team=aa";
alert(url);
confirmOrderForm.action=url;

confirmOrderForm.submit();

怎么搞到了action里team都未空啊。

郁闷好久。才发现<form id="confirmOrderForm">忘加入method="post"