我有一个HashMap,我想将其转换为XML:
@XmlJavaTypeAdapter(OrdersAdapter.class)
private Map<Long, Order> orders = new LinkedHashMap<Long, Order>();
默认情况下,map会转换为<entry><key></key><value></value><entry>
,但我想获取XML,其中key是属性且没有值标记。像这样:
<?xml version="1.0" encoding="UTF-16" standalone="yes"?>
<productsMap>
<orders>
<order orderId="1">
<prodId>123</prodId>
<price>1</price>
</order>
<order orderId="2">
<prodId>15</prodId>
<price>10</price>
</order>
</orders>
</productsMap>
使用我的程序来自github:https://github.com/pfryn/simpleTestProject/tree/master/src/pl/shop,现在我可以像这样生成xml:
<?xml version="1.0" encoding="UTF-16" standalone="yes"?>
<productsMap>
<orders>
<order orderId="1">
<value>
<prodId>123</prodId>
<price>1</price>
</value>
</order>
<order orderId="2">
<value>
<prodId>15</prodId>
<price>10</price>
</value>
</order>
</orders>
</productsMap>
你知道如何避免“价值”标签吗?
答案 0 :(得分:3)
OrderType
public class OrderType {
public List<Order> order =
new ArrayList<Order>();
}
<强> OrdersAdapter 强>
public class OrdersAdapter extends XmlAdapter<OrderType, Map<Long, Order>> {
@Override
public Map<Long, Order> unmarshal(OrderType v) throws Exception {
Map<Long, Order> hashMap = new HashMap<Long, Order>();
for (Order myEntryType : v.order) {
hashMap.put(myEntryType.orderId, myEntryType);
}
return hashMap;
}
@Override
public OrderType marshal(Map<Long, Order> map) throws Exception {
OrderType ordType = new OrderType();
for (Entry<Long, Order> entry : map.entrySet()) {
Order ordEntryType =
new Order();
ordEntryType.orderId = entry.getKey();
ordEntryType.price = entry.getValue().price;
ordEntryType.prodId = entry.getValue().prodId;
ordType.order.add(ordEntryType);
}
return ordType;
}
}
<强>顺序强>
public class Order {
public Order(){
super();
}
public Order(Long prodId, BigDecimal price) {
this();
this.prodId = prodId;
this.price = price;
}
@XmlAttribute
public Long orderId;
public Long prodId;
public BigDecimal price;
}
输出XML
<?xml version="1.0" encoding="UTF-16" standalone="yes"?>
<productsMap>
<orders>
<order orderId="1">
<prodId>123</prodId>
<price>1</price>
</order>
<order orderId="2">
<prodId>15</prodId>
<price>10</price>
</order>
</orders>
</productsMap>