[英]Unable to deserialize list directly inside rootelement using Jackson XML
我無法反序列化作為根元素的子目錄的列表,我嘗試了各種各樣的事情。
我的代碼:
private static class Cards {
@JacksonXmlElementWrapper(localName = "Cards")
private List<Card> cards;
public List<Card> getCards() {
return new ArrayList<>(cards);
}
}
private static class Card {
@JsonProperty("Name")
private String name;
@JsonProperty("Image")
private String image;
@JsonProperty("CardType")
private String cardType;
private final Map<String, Integer> resources = new HashMap<>();
private boolean duplicateResources = false;
private final List<String> duplicateResourceNames = new ArrayList<>();
@JsonAnySetter
private void addResource(final String name, final Object value) {
if (resources.containsKey(name)) {
duplicateResources = true;
duplicateResourceNames.add(name);
}
resources.put(name, Integer.parseInt(value.toString()));
}
public String getName() {
return name;
}
public String getImage() {
return image;
}
public String getCardType() {
return cardType;
}
@JsonAnyGetter
public Map<String, Integer> getResources() {
if (duplicateResources) {
throw new UncheckedCardLoadingException("Resources " + duplicateResourceNames + " have duplicate entries");
}
return new HashMap<>(resources);
}
}
和:
ObjectMapper xmlMapper = new XmlMapper();
Cards cards = xmlMapper.readValue(path.toFile(), Cards.class);
嘗試反序列化以下XML時:
<Cards>
<Card>
<Name>test</Name>
<Image></Image>
<CardType>test</CardType>
</Card>
</Cards>
它給出了錯誤:
com.cardshifter.core.cardloader.CardLoadingException:com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException:無法識別的字段“Card”(類com.cardshifter.core.cardloader.XmlCardLoader $ Cards),未標記為可忽略(一個已知屬性) :“卡片”])在[來源:C:\\ Users \\ Frank \\ Dropbox \\ NetbeansProjects \\ Cardshifter \\ cardshifter-core \\ target \\ test-classes \\ com \\ cardshifter \\ core \\ cardloader \\ single-card.xml; line:3,column:9](通過引用鏈:com.cardshifter.core.cardloader.Cards [“Card”])
首先,看看這些:
@JacksonXmlElementWrapper(localName = "Cards")
private List<Card> cards;
然后看看錯誤:
com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "Card" (class com.cardshifter.core.cardloader.XmlCardLoader$Cards)
在你的課堂上沒有任何地方說“卡片” 。
其次,在解決之后,這就是我如何解決你的整個裝載:
private static class Cards {
@JacksonXmlElementWrapper(localName = "Card")
@JsonProperty("Card")
private List<Card> card = new ArrayList<>();
@JsonSetter
public void setCard(Card card) {
this.card.add(card);
}
}
setCard
方法只是告訴Jackson如果它遇到這個,它應該把它解釋為一個Card
,然后你提供將它添加到數組的方法。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.