How to map JSON field names to Java object field names

Question

Currently, I'm creating REST Service with Spring.

My request handler in @RestController:

@RequestMapping(value = "employees/", method = RequestMethod.POST)
public Response setEmployees(@RequestBody Employee employee) {
    Response response = employeeManager.setEmployee(employee);
    return response;
}

Employee has fields like: login,tabNumber,firstName etc.

The real problem is that my REST service customers want to send request with another field names, that does not corresponds to Java naming conventions. Like TABNUMBER, UNITS_NAME etc. Jackson API converts JSON data to Java object corresponding to it field names... How to solve it? How can I bind custom JSON field names to my Java object field names?

You can create one request Entity as per the JSON Request and one Business Entity. Then you can write code to map it accordingly. — dassum, Aug 08 '18 at 10:37
There is similar question here on stackoverflow [this may be helpful][1] [1]: https://stackoverflow.com/questions/9741134/how-to-map-json-field-names-to-different-object-field-names — Abdul Fattah Boshi, Aug 08 '18 at 10:41

score 1 · Accepted Answer · answered Aug 08 '18 at 10:43

You can use JsonProperty annotation as below so your clients can send request field name as FIRST_NAME and it can mapped to Employee class :

@Data // comes from lombok
class Employee {
    @JsonProperty("FIRST_NAME")
    private String firstName;

//other fields
}

How to map JSON field names to Java object field names

1 Answers1