ajax请求添加随机数防止js缓存

var timestamp = (new Date()).valueOf();
var addressid;

$.ajax({
url:'<%=request.getContextPath()%>/rest/userAddress/getDefaultAddress?param='+timestamp,
type : "GET",
dataType : "JSON",
success : function(data) {
addressid = data.data.addressId;
$("#consignee").text(data.data.consignee);
$("#tel").text(data.data.tel);
$("#detial").text(data.data.province + "/"+ data.data.city + "/"+ data.data.area);
},
error : function() {
alert("error");
},
});