Order of fields getting changed in response JSON from a REST API

Question

In my RestController I am returning a POJO which has a LinkedHashMap.

public class ReportTypesVO {

private LinkedHashMap<Integer,EachReportTypeVO> reportTypes;

public LinkedHashMap<Integer, EachReportTypeVO> getReportTypes() {
    return this.reportTypes;
}

public void setReportTypes(LinkedHashMap<Integer, EachReportTypeVO> reportTypes) {
    this.reportTypes = reportTypes;
}}

My API:

@RequestMapping(value = "/dailyReport", method = RequestMethod.POST)
public ReportTypesVO populateDailyReportScreen() throws Exception {
    ReportProcess reportProcessing = new ReportProcess();
    logger.info("populateDailyReportScreen Service reached");
    ReportTypesVO response=reportProcessing.loadReportTypes(ReportProcess.DAILY_REPORT_METADATAID);

    return response;
}

In the "loadReportTypes" method I am populating this LinkedHashMap and this map is getting populated in desired order.then after setting this map inside "reportTypesVo" also i can see the entries inside map is in desired order. But when I see the Response JSON the entries inside map is in a different order. FYI now I am hitting the service with POST MAN.Jre version-7 Where is the issue ? Is Spring having some inbuilt functionality to change order in JSON ?

Can you show us what you see as ordered and the unexpexted response string? — notionquest, Aug 11 '16 at 06:41
@bigdestroyer this post suggests to use list in place of Linkedhashmap...But the purpose of linkedhashmap is to preserve the order only — smruti ranjan, Aug 11 '16 at 07:12

Order of fields getting changed in response JSON from a REST API

0 Answers0