Ignoring new fields on JSON objects using Jackson

0 votes

I'm using Jackson JSON library to convert some JSON objects to POJO classes on an android application. The problem is, the JSON objects might change and have new fields added while the application is published, but currently it will break even when a simple String field is added, which can safely be ignored.

Is there any way to tell Jackson to ignore newly added fields? (e.g. non-existing on the POJO objects)? A global ignore would be great.

Oct 25, 2018 in Java by Sushmita
• 6,900 points

1 answer to this question.

0 votes

Jackson provides an annotation that can be used on class level.

Add the following to the top of your class (not to individual methods):

@JsonIgnoreProperties(ignoreUnknown = true)
public class Foo {

Depending on the jackson version you are using you would have to use a different import in the current version it is:

import com.fasterxml.jackson.annotation.JsonIgnoreProperties;

in older versions it has been:

import org.codehaus.jackson.annotate.JsonIgnoreProperties;
answered Oct 25, 2018 by Daisy
• 8,110 points

Related Questions In Java

0 votes
1 answer

Calling SOAP web services on Android using JAVA

Android does not provide any sort of ...READ MORE

answered Jun 28, 2018 in Java by Sushmita
• 6,900 points
0 votes
1 answer

Using Jackson to deserialise an array of object

First create a mapper : import com.fasterxml.jackson.databind.ObjectMapper;// in ...READ MORE

answered Sep 26, 2018 in Java by Sushmita
• 6,900 points
0 votes
1 answer

JSON parsing in Java using Gson

Well, you can easily do that by ...READ MORE

answered Nov 21, 2018 in Java by code.reaper12
• 3,500 points
0 votes
0 answers

Sending request using json object return 404 error code

I am getting mad with this code ...READ MORE

Jun 19, 2019 in Java by FooBayo
• 120 points

edited Jun 19, 2019 by FooBayo 1,647 views
+15 votes
25 answers

How can I convert String to JSON object in Java?

Hi @Daisy You can use Google gson  for more ...READ MORE

answered Feb 7, 2019 in Java by Suresh
• 720 points
0 votes
2 answers

How to convert a JSON String into Object in Java?

You could probably check out Google's Gson: ...READ MORE

answered Aug 21, 2019 in Java by Sirajul
• 59,070 points
0 votes
1 answer

How to convert or cast hashmap to JSON object in Java, and again convert JSON object to JSON string?

You can use: new JSONObject(map); READ MORE

answered Jun 27, 2018 in Java by Akrati
• 3,170 points
0 votes
1 answer

How can we return a JSON object from a Java Servlet?

response.setContentType("application/json"); // Get the printwriter object from response ...READ MORE

answered Jul 6, 2018 in Java by sharth
• 3,350 points
0 votes
1 answer

How can we compare objects by multiple fields in Java?

You can implement a Comparator which compares two Person objects, and ...READ MORE

answered Jan 9, 2019 in Java by Daisy
• 8,110 points
+4 votes
3 answers

What are the steps to set Java_home on Windows?

Set Java Home JAVA_HOME = C:\Program Files\Java\jdk1.7.0 [Location ...READ MORE

answered Sep 18, 2018 in Java by Sushmita
• 6,900 points