Question

I have implemented a spring mvc 3 code to obtain JSON response (with help of jackson mapper)

@RequestMapping(value = "/getallroles", method = RequestMethod.GET)
@ResponseBody
public JsonJtableResponse1 getAllRoles(){
    List<Role> roleList = testService.getAllRoles();
    JsonJtableResponse1 jstr = new JsonJtableResponse1("OK",roleList);
    return jstr;
}

The JSON response object is like this.

public class JsonJtableResponse1 {

    private String Result;

    private List<Role> Records;

    public JsonJtableResponse1(String Result) {
        this.Result = Result;
    }

    public JsonJtableResponse1(List<Role> Records) {
        this.Records = Records;
    }

    public JsonJtableResponse1(String Result, List<Role> Records) {
        this.Result = Result;
        this.Records = Records;
    }

    public String getResult() {
        return Result;
    }

    public void setResult(String Result) {
        this.Result = Result;
    }

    public List<Role> getRecords() {
        return Records;
    }

    public void setRecords(List<Role> Records) {
        this.Records = Records;
    }   
}

returned JSON from spring method getAllRoles() is

{"result":"OK","records":[
{"custId":"1","name":"aaa","birthYear":"1982","employer":"XX","infoAsOfDate":"20130110","disabled":"true"},
{"custId":"2","name":"bbb","birthYear":"1982","employer":"YY","infoAsOfDate":"20130111","disabled":"true"},
{"custId":"3","name":"ccc","birthYear":"1982","employer":"XX","infoAsOfDate":"20130108","disabled":"false"},
{"custId":"4","name":"ddd","birthYear":"1981","employer":"TT","infoAsOfDate":"20130107","disabled":"true"}
]}

I need JSON as – [NOTE UPPER CASE R in both elements]

{"Result":"OK","Records":[ ....................
 ..............................................
]}

with Jakson mapper the JSON response is created taking in to account the getter/setter names of the object .How can I achieve the required format of JSON response?

Answer 1

You can customized names using the annotation @JsonProperty:

@JsonProperty("Result")
public String getResult() {
    return Result;
}

If you need to have all your properties names to have the first letter to be in upper case, you could change the default naming convention by extending the PropertyNamingStrategy. For example you can read this blog post http://www.cowtowncoder.com/blog/archives/2011/03/entry_448.html.