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 = JsonProperty.Access.WRITE_ONLY)
private String password;
Docs can be found here.