Pass model and a string using ajax to Spring MVC

Question

Hi I need to pass the full model and one string from html to Spring controller using AJAX. I use the below code snippet but it doesn't work.

var str = $("#resourceManagement").serialize();
        var agreementId = ${agreementId};
        var tempCnltName=$modal.find("input[data-type='cnltName']").val();
        $.ajax({
            type:"POST",
            data: {str, tempCnltName}, 
            url: "${AGREEMENT_BASE_URL}/checkDuplicateConsultantOnline",
            async: false,
            dataType: "json",
            success: function (data, status, xhr) {

                message =  data.errorMsg;
            },
            error: function () {

            }
        });

The problem is that if I pass model alone (str) or string alone (tempCnltName) I can get it in controller but I cannot get both together.

My controller is as below:

@RequestMapping(value = "/app/agreement/checkDuplicateConsultantOnline", method = RequestMethod.POST)
public @ResponseBody AjaxResponse checkDuplicateConsultantOnline(
        @ModelAttribute("consultantBidModel") ConsultantBidModel model,
        @RequestParam(value = "tempCnltName", required = false) String cnltName,
        HttpServletRequest request,
        HttpSession session) throws Exception {

    final Set<String> allCnltNames = new HashSet<>();
    String errMessage = "";
    if (model.getLeadingCnltName() != null) {
        allCnltNames.add(model.getLeadingCnltName().toLowerCase());
    }
    if (model.getJointVentureConsultants() != null) {
        for (ConsultantBidListItem entry : model.getJointVentureConsultants()) {
            if (!allCnltNames.add(entry.getCnltName().toLowerCase())) {
                errMessage = "Each consultant can only appear once.";
            }
        }
    }
    if (model.getSubConsultants() != null) {
        for (ConsultantBidListItem entry : model.getSubConsultants()) {
            if (!allCnltNames.add(entry.getCnltName().toLowerCase())) {
                errMessage = "Each consultant can only appear once.";
            }
        }
    }
    AjaxResponse response = new AjaxResponse();
    if (errMessage != null) {
        response.setSuccess(true);
        response.setResponseObject(errMessage);
        response.setErrorMsg(errMessage);
    }
    return response;
}

Markus Pscheidt · Accepted Answer · 2018-05-23 19:58:22Z

1

On the server side, you're already prepared to receive both the model (with @ModelAttribute) and an additional URL parameter (with @RequestParam)

On the client, append the URL parameter to the URL. Assuming that str is your model and tempCnltName is your string to submit to the server:

$.ajax({
    type:"POST",
    data: str,
    url: "${AGREEMENT_BASE_URL}/checkDuplicateConsultantOnline?tempCnltName=" + tempCnltName,
...

answered May 23, 2018 at 19:58

Markus Pscheidt

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Comments

Comfort Chauke · Accepted Answer · 2018-05-23 12:43:20Z

0

try

var strVal = $("#resourceManagement").serialize();
    var agreementId = ${agreementId};
    var tempCnltNameVal=$modal.find("input[data-type='cnltName']").val();
    $.ajax({
        type:"POST",
        data: {str: strVal, tempCnltName: tempCnltNameVal}, 
        url: "${AGREEMENT_BASE_URL}/checkDuplicateConsultantOnline",
        async: false,
        dataType: "json",
        success: function (data, status, xhr) {

            message =  data.errorMsg;
        },
        error: function () {

        }
    });

Probably the malformed json is causing trouble

answered May 23, 2018 at 12:43

Comfort Chauke

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1 Comment

Sharmistha Sinha Over a year ago

Thx for help but this doesn't work. I just updated my post to show my controller code. I think strVal doesn't map to my model.

Sharmistha Sinha · Accepted Answer · 2018-05-24 02:19:26Z

0

Another way of doing the above, add the string to model:

var strVal = "consulName=" + tempCnltName + "&";strVal = strVal + $("#resourceManagement").serialize();

The model can then have a new parameter consulName and we can get the value in Controller.

answered May 24, 2018 at 2:19

Sharmistha Sinha

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