Parsing JSON in Spring MVC using Jackson JSON

by

The whole point of using a mapping technology like Jackson is that you can use Objects (you don’t have to parse the JSON yourself).

Define a Java class that resembles the JSON you will be expecting.

e.g. this JSON:

{
"foo" : ["abc","one","two","three"],
"bar" : "true",
"baz" : "1"
}

could be mapped to this class:

public class Fizzle{
    private List<String> foo;
    private boolean bar;
    private int baz;
    // getters and setters omitted
}

Now if you have a Controller method like this:

@RequestMapping("somepath")
@ResponseBody
public Fozzle doSomeThing(@RequestBody Fizzle input){
    return new Fozzle(input);
}

and you pass in the JSON from above, Jackson will automatically create a Fizzle object for you, and it will serialize a JSON view of the returned Object out to the response with mime type application/json.

For a full working example see this previous answer of mine.

More Related Contents:

  1. Serializing enums with Jackson
  2. Jackson 2.0 with Spring 3.1
  3. How do I obtain the Jackson ObjectMapper in use by Spring 4.1?
  4. Spring 3.0 making JSON response using jackson message converter
  5. Why does Jackson 2 not recognize the first capital letter if the leading camel case word is only a single letter long?
  6. Spring-MVC 406 Not Acceptable instead of JSON Response
  7. Infinite Recursion with Jackson JSON and Hibernate JPA issue
  8. Configuring ObjectMapper in Spring
  9. JQuery, Spring MVC @RequestBody and JSON – making it work together
  10. Only using @JsonIgnore during serialization, but not deserialization
  11. JsonMappingException: No suitable constructor found for type [simple type, class ]: can not instantiate from JSON object
  12. How to customise the Jackson JSON mapper implicitly used by Spring Boot?
  13. How does the Spring @ResponseBody annotation work?
  14. Spring configure @ResponseBody JSON format
  15. Right way to write JSON deserializer in Spring or extend it
  16. How to configure MappingJacksonHttpMessageConverter while using spring annotation-based configuration?
  17. JSON parameter in spring MVC controller
  18. In Spring MVC, how can I set the mime type header when using @ResponseBody
  19. Strange Jackson exception being thrown when serializing Hibernate object
  20. Can Jackson be configured to trim leading/trailing whitespace from all string properties?
  21. How to enforce ACCEPT_SINGLE_VALUE_AS_ARRAY in jackson’s deserialization process using annotation
  22. spring mvc not returning json content – error 406
  23. How to return JSON data from spring Controller using @ResponseBody
  24. Spring RequestMapping for controllers that produce and consume JSON
  25. How to tell Jackson to ignore empty object during deserialization?
  26. HTTP Status 406. Spring MVC 4.0, jQuery, JSON
  27. Spring MVC 4: “application/json” Content Type is not being set correctly
  28. Spring @RequestBody containing a list of different types (but same interface)
  29. Spring MVC PATCH method: partial updates
  30. Spring MVC: How to modify json response sent from controller

Leave a Comment