While form submitting using ajax..getting Post not supported error ...don't know what is the error? - ajax

Question

I am using form submission using AJAX in Spring MVC and Thymeleaf. When I try to submit it it shows
Post method is not supported
I can't figure out the mistake in my code:
<form class="form-horizontal" action="#" th:action="#{/teacher/teacherProfileUpdation}" th:object="${teacherProfileDetailsList}"
id="saveTeacherForm" method="POST" >
<br />
<div class="row">
<div class="col-lg-14 col-md-12">
<br />
<h5 style="margin-left: 15%;">Personal Details</h5>
<hr />
<div class="form-group">
<label class="col-sm-3 control-label">Name</label>
<div class="col-md-3 col-sm-4 col-xs-4">
<input placeholder="Teacher first name" id="txtTeacherFname" th:field="*{firstName}" type="text" class="form-control" />
</div>
<div class="col-md-3 col-sm-4 col-xs-4">
<input placeholder="Teacher middle name" id="txtTeacherMname" th:field="*{middleName}" type="text" class="form-control" />
</div>
<div class="col-md-3 col-sm-4 col-xs-4">
<input placeholder="Teacher last name" id="txtTeacherLname" th:field="*{lastName}" type="text" class="form-control" />
</div>
</div>
</div>
<div class="col-lg-14 col-md-12">
<div class="form-actions">
<input type="hidden" id="hdnStudentByIdInSchoolAdmin" value="0" />
<input type="button" class="btn btn-info pull-right" id="btnUpdateTeacherProfile" value="Save" />
</div>
</div>
</div>
JS:
saveTeacherProfile :function(){
$("#saveTeacherForm").ajaxForm({
success : function(status) {
alert("success");
},
}).submit();
}
Controller:
#RequestMapping(value = "/updateTeacherProfile", method = RequestMethod.POST)
public String updateTeacherProfile( TeacherProfileDetails teacherProfileDetails){
System.out.println("-----------"+teacherProfileDetails.getFirstName()+"-------------");
System.out.println("-----------"+teacherProfileDetails.getLastName()+"-------------");
System.out.println("-----------"+teacherProfileDetails.getMiddleName()+"-------------");
return "success";
}

Answer 1

You are posting the form, but most likely your Spring controller is not configured to accept POST requests. Try this in your server-side Controller class for this page:
#RequestMapping(..., method = { RequestMethod.GET, RequestMethod.POST }, ...)
public void myControllerMethod()
{

Answer 2

#RequestMapping(..., method = { RequestMethod.GET, RequestMethod.POST }, ...)
public String updateTeacherProfile( TeacherProfileDetails teacherProfileDetails){
//ur Logic
}