Jquery ajax request with json data is not reaching spring mvc controller

Question

I need to send data to spring mvc controller from view using jquery. Spring mvc will insert/update these values in db. I am using below code

JQuery:

 var json = {"KPI" : visual, "partnerName": params['partnerName'],
 "partnerAddress" : params['partnerAddress'], "documentType" : params['documentType'], 
 "itemQualifier": getItemQualifier(),"itemIdentifiers" : params['itemIdentifiers'], 
 "currency" : getCurrency(), "sellSide": getSellSide()};

 $.ajax({                                                                   
        type: "POST",
        url: "/reports/savefilters",
        data: json,
        success: function(response){
                 alert('success: ' + response);
                },
        error: function(e){ 
                 alert('Error: ' + e);
                }
 });

Spring MVC controller Code:

@RequestMapping(value="/savefilters", method=RequestMethod.POST)
public String saveFilters(@RequestBody AnalyticsFilters filters){
    System.out.println("savefilters method in controller");
    System.out.println("KPI:"+filters.getKPI());
    if(filters.getPartnerName() != null && filters.getPartnerName().size()>0 ) System.out.println("partnerName:"+filters.getPartnerName().get(0));
    if(filters.getPartnerAddress() != null && filters.getPartnerAddress().size()>0 ) System.out.println("partnerAddress:"+filters.getPartnerAddress().get(0));
    if(filters.getDocumentType() != null && filters.getDocumentType().size()>0 ) System.out.println("documentType:"+filters.getDocumentType().get(0));
    System.out.println("itemQualifier:"+filters.getItemQualifier());
    if(filters.getItemIdentifiers() != null && filters.getItemIdentifiers().size()>0 ) System.out.println("itemIdentifiers:"+filters.getItemIdentifiers().get(0));
    System.out.println("currency:"+filters.getCurrency());
    System.out.println("sellSide:"+filters.getSellSide());
    new DashboardDisplayService().saveFilters();
    return "successful";
}

Post request is getting converted to Get method and not able to reach spring mvc controller. I tried with different ajax json options like datatype,contenttype etc. how to make sure POST request doesn't change to GET method???

Have you verified through network inspection that a GET is being sent, or are you deducing this from the fact that you are not reaching your controller? How is the ajax request triggered, could there be a default action that is not prevented, such as a form submit? — David Hedlund
– David Hedlund, Commented Jul 5, 2016 at 9:31
1. Yes. I did inspect element. I could see "405 - GET is not supported error" when I opened the link in new tab. 2. I have jquery dialog with options to choose. I am trying to update the db by sending jquery ajax request to spring mvc. There is no form submit is involved here — Hemachandra
– Hemachandra, Commented Jul 5, 2016 at 9:35
When you open the link in a new tab that will always be a GET. Did you see the actual AJAX request in your network inspection tools? — David Hedlund
– David Hedlund, Commented Jul 5, 2016 at 9:36
yeah @David Hedlund. I checked just now in network tab. I can see "POST" method in headers. Looks its not problem with Request method — Hemachandra
– Hemachandra, Commented Jul 5, 2016 at 9:51
Alright, at least that's progress. Does the URL look alright in the network tab? What does the response say? — David Hedlund
– David Hedlund, Commented Jul 5, 2016 at 10:04

Mihir Gohel · Accepted Answer · 2016-07-05 10:13:47Z

0

Ajax method returns the messages in ResponseBody. I have modified your handler method as below.

@RequestMapping(value="/savefilters", method=RequestMethod.POST)
public @ResponseBody String saveFilters(@RequestBody AnalyticsFilters filters){
...
}

answered Jul 5, 2016 at 10:13

Mihir Gohel

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2 Comments

Hemachandra Over a year ago

Thanks for the comment Mihir. As I mentioned in above comments, its expecting string parameter which is missing. I need to look into code about this why its occuring.

Mihir Gohel Over a year ago

Is it reaching inside your handler method ?

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