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Is there any way to prevent a field from deserialization in jackson? but i need to serialize that field I tried with @jsonIgnoreProperties this prevent both serialization and deserialization.

virtualpathum
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3 Answers3

4

Starting with Jackson 2.6, a property can be marked as read- or write-only. It's simpler than hacking the annotations on both accessors and keeps all the information in one place:

public class NoDeserialization {
    @JsonProperty(access = JsonProperty.Access.READ_ONLY)
    private String prop;

    public String getProp() {
        return prop;
    }

    public void setProp(String prop) {
        this.prop = prop;
    }
}
Frank Pavageau
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3

The "trick" is to combine the @JsonProperty and @JsonIgnore on the setters and getters, like in the following example

 public class SerializeDemo{

      @JsonIgnore
      private String serializeOnly;


      @JsonProperty("serializeOnly")
      public String getSerializeOnly() {
        return serializeOnly;
      }

      @JsonIgnore
      public void setSerializeOnly(String serializeOnly) {
        this.serializeOnly= serializeOnly;
      }
    }
Master Slave
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  • Thanks. Will try and let you know. – virtualpathum Dec 01 '14 at 06:37
  • Yeah. It really does "The Trick". Thanks a lot – virtualpathum Dec 01 '14 at 07:44
  • Now we have another issue. We cannot use @JsonIgnore in both setter and the attribute. Our spring web project gives the following exception. org.springframework.data.mapping.model.MappingException: Ambiguous mapping! Annotation JsonIgnore configured on field yyyyyy and one of its accessor methods in class XXXXXEntity! Any Idea?? – virtualpathum Dec 02 '14 at 01:42
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    Starting with Jackson 2.6 `@JsonProperty(access = JsonProperty.Access.READ_ONLY)` should do, see [Frank Pavageau's answer](https://stackoverflow.com/a/49321318/2032157) – Alexander Melnichuk Mar 26 '20 at 06:16
0

You can use @JsonIgnore om field declaration.

ex. 

@JsonIgnore
private Integer fieldToPrevent; // this will be avoided

private Integer regularField; // will serialize

look here's a explanation of it.

I have gave same answer here also.

Community
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user3145373 ツ
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