当映射到使用SpringBoot开发的REST API中的Java对象时，使XML有效负载字段不区分大小写

public class MyObject {
    @JsonProperty("fieldName")
    private String fieldName;
    
    // getter and setter
}

public class CaseInsensitiveDeserializer extends StdDeserializer<MyObject> {
    public CaseInsensitiveDeserializer() {
        this(null);
    }
    
    public CaseInsensitiveDeserializer(Class<?> vc) {
        super(vc);
    }
    
    @Override
    public MyObject deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException {
        JsonNode node = jp.getCodec().readTree(jp);
        String fieldValue = node.get("fieldName").asText();
        
        MyObject myObject = new MyObject();
        myObject.setFieldName(fieldValue);
        
        return myObject;
    }
}

@JsonDeserialize(using = CaseInsensitiveDeserializer.class)
private String fieldName;