Only using JsonIgnore during serialization but not deserialization

Question

I have a user object that is sent to and from the server  When I send out the user object  I don t want to send the hashed password to the client  So  I added  JsonIgnore on the password property  but this also blocks it from being deserialized into the password that makes it hard to sign up users when they don t have a password  How can I only get  JsonIgnore to apply to serialization and not deserialization  I m using Spring JSONView  so I don t have a ton of control over the ObjectMapper  Things I ve tried   Add  JsonIgnore to the property Add  JsonIgnore on the getter method only

User · Answer

In my case  I have Jackson automatically  de serializing objects that I return from a Spring MVC controller  I am using  RestController with Spring 4 1 6   I had to use com fasterxml jackson annotation JsonIgnore instead of org codehaus jackson annotate JsonIgnore  as otherwise  it simply did nothing

User · Answer

You can also do like   JsonIgnore  JsonProperty access   Access WRITE ONLY  private String password   It s worked for me

User · Answer

Exactly how to do this depends on the version of Jackson that you re using  This changed around version 1 9  before that  you could do this by adding  JsonIgnore to the getter   Which you ve tried      Add  JsonIgnore on the getter method only   Do this  and also add a specific  JsonProperty annotation for your JSON  password  field name to the setter method for the password on your object   More recent versions of Jackson have added READ ONLY and WRITE ONLY annotation arguments for JsonProperty  So you could also do something like    JsonProperty access   Access WRITE ONLY  private String password    Docs can be found here

User · Answer

You can use  JsonIgnoreProperties at class level and put variables you want to igonre in json in  quot value quot  parameter Worked for me fine   JsonIgnoreProperties value      quot myVariable1 quot   quot myVariable2 quot     public class MyClass         private int myVariable1         private int myVariable2

User · Answer

In order to accomplish this  all that we need is two annotations     JsonIgnore  JsonProperty   Use  JsonIgnore on the class member and its getter  and  JsonProperty on its setter  A sample illustration would help to do this   class User           More fields here      JsonIgnore     private String password        JsonIgnore     public String getPassword             return password              JsonProperty     public void setPassword final String password            this password   password

User · Answer

Since version 2 6  a more intuitive way is to use the com fasterxml jackson annotation JsonProperty annotation on the field    JsonProperty access   Access WRITE ONLY  private String myField    Even if a getter exists  the field value is excluded from serialization   JavaDoc says          Access setting that means that the property may only be written  set     for deserialization     but will not be read  get  on serialization  that is  the value of the property    is not included in serialization      WRITE ONLY   In case you need it the other way around  just use Access READ ONLY

User · Answer

Another easy way to handle this is to use the argument allowSetters truein the annotation  This will allow the password to be deserialized into your dto but it will not serialize it into a response body that uses contains object   example    JsonIgnoreProperties allowSetters   true  value     bar    class Pojo      String foo      String bar      Both foo and bar are populated in the object  but only foo is written into a response body

User · Answer

user              firstName    Musa            lastName    Aliyev            email    klaudi2012 gmail com            passwordIn    98989898    or encoded version in front if we not using https           country    Azeribaijan            phone     994707702747                 CrossOrigin methods RequestMethod POST   RequestMapping   public register   public  ResponseBody MsgKit registerNewUsert  RequestBody User u            root registerUser u        return new MsgKit  registered                 Service  Transactional public class RootBsn         Autowired UserRepository userRepo       public void registerUser User u  throws Exception           u setPassword u getPasswordIn               Generate some salt and  setPassword  encoded -  salt password          User u userRepo save u            System out println  Registration information saved                          Entity          JsonIgnoreProperties   recordDate   modificationDate   status   createdBy   modifiedBy   salt   password                        public class User implements Serializable                           private static final long serialVersionUID   1L                            Id                          GeneratedValue strategy GenerationType AUTO                          private Long id                           private String country                            Column name  CREATED BY                           private String createdBy                           private String email                            Column name  FIRST NAME                           private String firstName                            Column name  LAST LOGIN DATE                           private Timestamp lastLoginDate                            Column name  LAST NAME                           private String lastName                            Column name  MODIFICATION DATE                           private Timestamp modificationDate                            Column name  MODIFIED BY                           private String modifiedBy                           private String password                            Transient                         private String passwordIn                           private String phone                            Column name  RECORD DATE                           private Timestamp recordDate                           private String salt                           private String status                            Column name  USER STATUS                           private String userStatus                           public User                                                  getters and setters

[java] Only using @JsonIgnore during serialization, but not deserialization

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