function deleteAll() {
var all = document.getElementsByName("checkname");//获得你选中的内容是一个数组
if (all == null || all.length == 1) {
alert("暂无订单");
return;
} else {
var idStr = "";//定义一个自己要删除的id的字符串
for ( var i = 0; i < all.length; i++) {
if (all[i].checked) {
idStr += all[i].value + ",";//将id用逗号，分隔连接起来
}
}
var result = confirm("选中删除");
if (result) {
window.location.href = "deleteOrderAction?action=deleteAll&idStr="
+ idStr;
} else {
return null;
}
}
}
</script>

String[] arr = idStr.split(",");//将获得id字符串数组使用逗号拆分获得每一个id
for (String str : arr) {
int orderid = Integer.parseInt(str);
OrderService.deleteOrder(orderid);
}