thymeleaf Getting started with thymeleaf Ajax form submition with Jquery

Example

To submit form via Ajax with Jquery :

    <div id="yourPanel" th:fragment="yourFragment">  
        <form id="yourForm" method="POST" 
              th:action="@{/actions/postForm}"
              th:object="${yourFormBean}">
        <div class="form-group">
            <label for="param1"></label>
            <input class="form-component" type="text" th:field="*{param1}" />
        </div>
        <div class="form-group">
            <label for="param2"></label>
            <input class="form-component" type="text" th:field="*{param2}" />
        </div>
        <div class="form-group">
            <label for="param3"></label>
            <input class="form-component" type="checkbox" th:field="*{param3}" />
        </div>

        <button type="submit" class="btn btn-success">Save</button>
        <a href='#' class="btn btn-default">Cancel</a>
    </form>
    </div>

<script th:inline="javascript">
    /*<![CDATA[*/
    $(document).ready(function () {
        /*[+
         var postUrl = [[@{/actions/postForm(
         additionalParam=${#httpServletRequest.getParameter('additionalParam')}
         )}]]; 
         +]*/
        $("#yourForm").submit(function (e) {
            e.preventDefault();
            $.post(postUrl,
                    $(this).serialize(),
                    function (response) {
                        var isErr = 'hasError';
                        // when there are an error then show error
                        if (response.indexOf(isErr) > -1) {
                            $("#yourPanel").html(response);
                        } else {
                            var formData = $("#yourForm").serializeArray(),
                                    len = formData.length,
                                    urlEnd = '';
                            for (i = 0; i < len; i++) {
                                urlEnd += formData[i].name + '=' + encodeURIComponent(formData[i].value) + '&';
                            }

                            /*[+
                             var urlReplacement = [[@{/another/page(
                             additionalParam=${#httpServletRequest.getParameter('additionalParam')}
                             )}]] + urlEnd;
                             +]*/

                            window.location.replace(urlReplacement);
                        }
                    }
            );
            return false;
        });
    });
    /*]]>*/
</script>

YourFormBean class :

@lombok.Getter
@lombok.Setter
@lombok.NoArgsConstructor
public class YourFormBean {
    private String param1;
    private String param2;
    private boolean param3;
}

Controller code :

@RequestMapping(value = "/actions/postForm", method = RequestMethod.POST) 
public String saveForm(Model model, 
        @RequestParam("additionalParam") Integer additionalParam, 
        @Valid @ModelAttribute("yourFormBean") YourFormBean yourFormBean,
        BindingResult bindingResult,
        RedirectAttributes redirectAttributes) {
    if (bindingResult.hasErrors()) {
        model.addAttribute("hasError", true);
        return "your/template :: yourFragment";
    }
    redirectAttributes.addAttribute("additionalParam", additionalParam);
    
    return "redirect:/another/page";
}