程序包 org.springframework.boot.jackson

类 JsonObjectDeserializer<T>

java.lang.Object
com.fasterxml.jackson.databind.JsonDeserializer<T>
org.springframework.boot.jackson.JsonObjectDeserializer<T>
类型参数:
T - the supported object type
所有已实现的接口:
com.fasterxml.jackson.databind.deser.NullValueProvider
public abstract class JsonObjectDeserializer<T> extends com.fasterxml.jackson.databind.JsonDeserializer<T>
Helper base class for JsonDeserializer implementations that deserialize objects.
从以下版本开始:
1.4.0
作者:
Phillip Webb
另请参阅:

  • 嵌套类概要

    从类继承的嵌套类/接口 com.fasterxml.jackson.databind.JsonDeserializer

    com.fasterxml.jackson.databind.JsonDeserializer.None

  • 构造器概要

    构造器
    构造器
    说明
    JsonObjectDeserializer()
     

  • 方法概要

    修饰符和类型
    方法
    说明
    final T
    deserialize(com.fasterxml.jackson.core.JsonParser jp, com.fasterxml.jackson.databind.DeserializationContext ctxt)
     
    protected abstract T
    deserializeObject(com.fasterxml.jackson.core.JsonParser jsonParser, com.fasterxml.jackson.databind.DeserializationContext context, com.fasterxml.jackson.core.ObjectCodec codec, com.fasterxml.jackson.databind.JsonNode tree)
    Deserialize JSON content into the value type this serializer handles.
    protected final com.fasterxml.jackson.databind.JsonNode
    getRequiredNode(com.fasterxml.jackson.databind.JsonNode tree, String fieldName)
    Helper method to return a JsonNode from the tree.
    protected final <D> D
    nullSafeValue(com.fasterxml.jackson.databind.JsonNode jsonNode, Class<D> type)
    Helper method to extract a value from the given jsonNode or return null when the node itself is null.
    protected final <D, R> R
    nullSafeValue(com.fasterxml.jackson.databind.JsonNode jsonNode, Class<D> type, Function<D,R> mapper)
    Helper method to extract a value from the given jsonNode or return null when the node itself is null.

    从类继承的方法 com.fasterxml.jackson.databind.JsonDeserializer

    deserialize, deserializeWithType, deserializeWithType, findBackReference, getAbsentValue, getDelegatee, getEmptyAccessPattern, getEmptyValue, getEmptyValue, getKnownPropertyNames, getNullAccessPattern, getNullValue, getNullValue, getObjectIdReader, handledType, isCachable, logicalType, replaceDelegatee, supportsUpdate, unwrappingDeserializer

    从类继承的方法 java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • 构造器详细资料

    • JsonObjectDeserializer

      public JsonObjectDeserializer()

  • 方法详细资料

    • deserialize

      public final T deserialize(com.fasterxml.jackson.core.JsonParser jp, com.fasterxml.jackson.databind.DeserializationContext ctxt) throws IOException
      指定者:
      deserialize 在类中 com.fasterxml.jackson.databind.JsonDeserializer<T>
      抛出:
      IOException

    • deserializeObject

      protected abstract T deserializeObject(com.fasterxml.jackson.core.JsonParser jsonParser, com.fasterxml.jackson.databind.DeserializationContext context, com.fasterxml.jackson.core.ObjectCodec codec, com.fasterxml.jackson.databind.JsonNode tree) throws IOException
      Deserialize JSON content into the value type this serializer handles.
      参数:
      jsonParser - the source parser used for reading JSON content
      context - context that can be used to access information about this deserialization activity
      codec - the ObjectCodec associated with the parser
      tree - deserialized JSON content as tree expressed using set of TreeNode instances
      返回:
      the deserialized object
      抛出:
      IOException - on error
      另请参阅:

    • nullSafeValue

      protected final <D, R> R nullSafeValue(com.fasterxml.jackson.databind.JsonNode jsonNode, Class<D> type, Function<D,R> mapper)
      Helper method to extract a value from the given jsonNode or return null when the node itself is null.
      类型参数:
      D - the data type requested
      R - the result type
      参数:
      jsonNode - the source node (may be null)
      type - the data type. May be String, Boolean, Long, Integer, Short, Double, Float, BigDecimal or BigInteger.
      mapper - a mapper to convert the value when it is not null
      返回:
      the node value or null
      从以下版本开始:
      3.4.0

    • nullSafeValue

      protected final <D> D nullSafeValue(com.fasterxml.jackson.databind.JsonNode jsonNode, Class<D> type)
      Helper method to extract a value from the given jsonNode or return null when the node itself is null.
      类型参数:
      D - the data type requested
      参数:
      jsonNode - the source node (may be null)
      type - the data type. May be String, Boolean, Long, Integer, Short, Double, Float, BigDecimal or BigInteger.
      返回:
      the node value or null

    • getRequiredNode

      protected final com.fasterxml.jackson.databind.JsonNode getRequiredNode(com.fasterxml.jackson.databind.JsonNode tree, String fieldName)
      Helper method to return a JsonNode from the tree.
      参数:
      tree - the source tree
      fieldName - the field name to extract
      返回:
      the JsonNode