In this tutorial, we will learn to use Jackson 2 library to convert from JSON to java objects – and from java objects to JSON. Table of Contents Jackson 2 maven dependency Convert Java object to JSON Convert JSON to Java object Jackson 2 maven dependency To include Jackson 2 library in your project, include […]
Jackson2 – Convert JSON to Map and Map to JSON
In previous example, we learned about converting simple POJO java class to JSON, and then converting a JSON back to java object. In that example, our java class was a simple java bean with some attributes, getters and setters of those attributes. Jackson uses reflection to create a mapping between attribute and JSON field. In […]
[Solved] org.codehaus.jackson.map.JsonMappingException: No suitable constructor found for type
If you are working on Jackson library and trying to marshal/unmarshal java objects to / from JSON documents, you may encounter this exception. The exception stack-trace for JsonMappingException looks like this: Solution: To solve this exception, all you have to do is to create the default constructor for your POJO class which you are trying […]
Jackson – Java Object to JSON and JSON to Object
If you have worked on REST web-services supporting XML and JSON format’s request and response structures, then you may have used JAXB and Jackson already in your configurations. Jackson is used to convert the java objects to json, and json to java objects. In this quick tutorial, I am giving examples of converting java objects […]