通过以下方式实现了一个自定义解串器来反序列化JSON。但是mapper.treeToValue导致无限次地调用代码。Json自定义解串器陷入无限递归
public class MyDeserializer extends StdDeserializer<MyResource> {
@Override
public myResourcedeserialize(JsonParser parser, DeserializationContext context) throws IOException, JsonProcessingException {
MyResource resource = null;
Class<? extends MyResource > clazz = null;
ObjectMapper mapper = (ObjectMapper) parser.getCodec();
ObjectNode node = (ObjectNode) mapper.readTree(parser);
Iterator<Map.Entry<String, JsonNode>> elementsIterator = node.fields();
while (elementsIterator.hasNext()) {
Map.Entry<String, JsonNode> element = elementsIterator.next();
if(element.getKey().equals("typeId"))
{
if(element.getValue().asInt() == 1)
{
clazz = SpecificResource.class;
break;
}
}
}
return mapper.treeToValue(node,clazz);
}
执行mapper.treeToValue后,控制再返回myResourcedeserialize方法和执行它无限的次数和造成的StackOverflowError。
有什么建议吗?