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Method Not Allowed, status=405, HTML form using Thymeleaf

I made a Form using Thymeleaf but running into this issue.
I read many articles but didn't find any solution.
Any solution you can suggest ?
Project Controller ->
#Controller
public class Controllers {
#GetMapping("/home")
public ModelAndView home(){
System.out.println("User is in Homepage");
return new ModelAndView("index");
}
#GetMapping("/service")
public ModelAndView service(){
System.out.println("User is in Service Page");
return new ModelAndView("service");
}
#GetMapping("/about")
public ModelAndView about(){
System.out.println("User is in About page");
return new ModelAndView("about");
}
Here's Controller Class for submitting form ->
#Controller
public class SavingUser{
#Autowired
private UserRepository userRepository;
#PostMapping("/registerUser")
public ModelAndView user(#ModelAttribute Customer customer, ModelMap model){
System.out.println("User in registration page..");
userRepository.save(customer);
model.addAttribute("saveUser", customer);
return new ModelAndView("index");
}
}
And here's my HTML Form -
<div id="form">
<form action="registerUser" th:action="#{/registerUser}" th:object="${saveUser}" method="POST">
<br />
<input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}"/>
<label for="name">Your Name:</label><br />
<input type="text" th:field="*{name}" placeholder="" /><br />
<label for="suburb">Your Suburb</label><br />
<input type="text" th:field="*{suburb}" placeholder="" /><br />
<input class="submit" type="submit" value="Submit" />
<br /><br />
</div>
</form>
</div>
I tried to remove action="", still it didn't work.

Well, from what I see in the code you miss the #GetMapping method in your controller to actually display the page. Not very clear in what step you get 405 status. It would be useful if you also add the relevant exception message from the console.
Edit:
to answer the original question, you get 405 because in the Post Controller you make a POST request to "/services" which dosen't exists (only the GET exists for services).
#PostMapping("/registerUser")
public ModelAndView user(#Valid #ModelAttribute Customer customer, BindingResult result, ModelMap model){
[...]
return new ModelAndView("service"); // this makes a POST to "service" endpoint!
}
To correct that, you must make a redirect to the page like this:
#PostMapping("/registerUser")
public ModelAndView user(#Valid #ModelAttribute Customer customer, BindingResult result, ModelMap model){
[...]
return new ModelAndView("redirect:/service"); // this makes a GET to "service" endpoint
}
Leaving that aside, there are many things that can be imporoved. First of all, you are not using Thymeleaf in your project. No Thymeleaf markup will be processed. To use it you must add first the dependency, then configure Thymeleaf as your HTML resolver. The proper way to do all that is detailed here.
Also, I really recommend reading Thymeleaf documentation and follow a few tutorials to understand how things work.

How to get inputs from thymeleaf without Ambigous Handler error?

I am trying to get a value from thymeleaf input into my java class.
Simple script from thymeleaf
<h1>Form</h1>
<form action="#" th:action="#{/index}" th:object="${emails}" method="post">
<p>Enter Emails: <input type="text" th:field="*{email}" /></p>
<p><input type="submit" value="Submit" /> <input type="reset" value="Reset" /></p>
</form>
How would I be able to retrieve emails into my java class?
Controller
#Controller
#RequestMapping(method = RequestMethod.GET)
public class IndexController {
#RequestMapping(value = "/index", method = RequestMethod.GET)
public ModelAndView getdata() throws IOException {
ModelAndView model = new ModelAndView("index");
model.addObject("emails", new MailModel());
return model;
}
#PostMapping("/index")
public String emailSubmit(#ModelAttribute MailModel emails) {
System.out.println(emails.getEmail());
return "index";
}
Error Message
Ambiguous handler methods mapped for HTTP path 'http://localhost:8080/': {public org.springframework.web.servlet.ModelAndView com.spring.web.controller.IndexController.getdata() throws java.io.IOException, public java.lang.String com.spring.web.controller.IndexController.emailSumbit(com.spring.web.model.MailModel)}
My Application is created with Springboot, Java, and Thymeleaf. What am I doing wrong? Is it possible that ModelandView does not work with PostMapping? I also followed https://spring.io/guides/gs/handling-form-submission/ and I got that sample working, but when I tried to follow the logic and implement into my project. It did not work.

Before declaring your controller, you are setting the RequestMethod to GET everywhere. On the methods you are setting them again, which is ambigous.
Remove the #RequestMapping(method = RequestMethod.GET) in line 2. This should fix the mentioned problem.

Spring Form Tag Error (Binding Result)

I am teaching myself Spring Form tags, and have run into what is probably a simple error that I haven't been able to solve. I get the following error when I launch this app in a browser:
java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'index' available as request attribute
I've tried most of the fixes that came up in a Google search to no avail. Can someone spot where I went wrong? Below are the relevant components. Thanks very much.
Controller:
#Controller
#RequestMapping("/registration")
public class LoginController {
#RequestMapping(method = RequestMethod.GET)
public String setupForm(ModelMap model) {
Registration registration = new Registration();
model.addAttribute("registration", registration);
return "index";
}
#RequestMapping(method = RequestMethod.POST)
public String onSubmit(#ModelAttribute("registration") Registration registration, Map model) {
return "success";
}
}
JSP (/index.jsp):
<form:form commandName="index">
<table border="0" cellspacing="12">
<tr>
<td>
<form:input path="email"/>
</td>
</tr>
<tr>
<td>
<form:password path="password"/>
</td>
</tr>
<tr>
<td>
<input type="submit" value="Submit"/>
</td>
</tr>
</table>
</form:form>
Command Object (Registration.java) :
public class Registration {
private String password;
private String email;
// getters,setters

Facing same issue few days back, What i understood from hit and trail is, Index page is a static page and no processing happens before the same is rendered. In case i want to use a form model binding in index page i should have a controller's handler method which will create a Registration object and place the same in ModelAndView before index.jsp is rendered
add a method in your controller like the below and try
#RequestMapping(method = RequestMethod.GET, value="/")
public ModelAndView initiate(){
ModelAndView objModView = new ModelAndView("/index.jsp");
objModView.addObject("registration",new Registration());
return objModView;
}

In your index page correct the following and try
<form:form commandName="index"> to <form:form commandName="registration">
You can also do it like this if the above does not work
<form:form modelAttribute="registration" commandName="registration">
Thanks

The error which is seen is because when you submit the form you have to have a Binding Result associated with the #ModelAttribute annotation.
Try changing you code to this :
#RequestMapping(method = RequestMethod.POST)
public String onSubmit(#ModelAttribute("registration") Registration registration, BindingResult result, Map model){
return "success";
}
Also note that the Binding Result object should be followed immediately after the Model Attribute.
And if you are using two #ModelAttributes then each one should have its own binding result object which follows it.
Please refer the spring source guide for all the related documentation
http://static.springsource.org/spring/docs/3.1.x/spring-framework-reference/html/mvc.html

Binding problems using Spring MVC

I am using Spring MVC 3.1 to develop a Java web app. I have a JSP that has two paired radio buttons, an entry field, and a dropdown select box. I need these values to be available to my mapped controller, via a model class' fields.
The security and URL mapping works fine, as I've seen in debugger before. The issue is that when I tried to get the JSP data values populating my model, I get an error:
java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'cccForm' available as request attribute
Here is part of my JSP:
<c:url var="cccUrl" value="/registers/default/ccPreauth/authorize" />
<div class="mainWrapper">
<form:form id="cccForm" action="${cccUrl}" method="post" modelAttribute="cccForm">
...
<table>
<tbody>
<tr>
<th>Select an option.</th>
</tr>
<tr>
<td>
<div class="field-input">
<form:radiobutton id="paymentOption" path="paymentOption" value="authorizeCC" />
Collect Credit Card Information
</div>
<div class="field-input">
Authorization Amount $
<form:input path="authAmount" maxlength="10" size="10" class="extendWidth"/>
<span class="instructions">
<spring:message code="label.authorization.note" />
</span>
</div>
<div class="field-input">
<form:radiobutton id="paymentOption" path="paymentOption" value="cancelAuth" />
Choose a Reason and Cancel Credit Card Collection
</div>
<div class="field-input right">
<form:select id="selectedReason" path="selectedReason" >
<c:forEach items="${reasonList}" var="reason">
<option value=${reason.reasonText}>${reason.reasonText}</option>
<br />
</c:forEach>
</form:select>
</div></td>
</tr>
</tbody>
</table>
</div>
<div class="right">
<button class="btnBlue" id="submitButton" type="submit">
Here is part of my controller:
#Controller
#RequestMapping(value = "/registers/default/ccPreauth")
#SessionAttributes(ControllerConstants.DEFAULT_REGISTER_ATTR_NM)
public class CCCaptureController {
...
#RequestMapping(value="/authorize" )
public ModelAndView authorize(
final Authentication auth,
final #ModelAttribute("ccCapturePaymentRequest") CCCapturePaymentForm ccCapturePaymentRequest,
final BindingResult result,
final HttpServletResponse response) {
final ModelAndView mav = new ModelAndView(CC_PREAUTH_PAYMENT_VIEW);
return mav;
}
and finally, here is my model class:
public class CCCapturePaymentForm implements Serializable {
private static final long serialVersionUID = 6839171190322687142L;
#NumberFormat(style = Style.CURRENCY)
private BigDecimal authAmount;
private String selectedReason;
private String paymentOption;
public BigDecimal getAuthAmount() {
return authAmount;
}
public void setAuthAmount(BigDecimal authAmount) {
this.authAmount = authAmount;
}
public String getSelectedReason() {
return selectedReason;
}
public void setSelectedReason(String selectedReason) {
this.selectedReason = selectedReason;
}
public String getPaymentOption() {
return paymentOption;
}
public void setPaymentOption(String paymentOption) {
this.paymentOption = paymentOption;
}
}
Can anyone tell me what I need to get this to work correctly? Please don't stop at just the reason for the exception above - please verify and correct my code as I am on a tight schedule as usual and have little experience with Spring MVC. Thanks!

You have this in your form:
modelAttribute="cccForm"
So you should have this in your controller:
#ModelAttribute("cccForm") CCCapturePaymentForm ccCapturePaymentRequest
That's how you bind the form backing object with the model attribute.

I found the answer for those Spring MVC newbies...
I had to set the "cccForm" to a new instance of my next page's form inside the controller search method (that then tries to being up the page that was getting the error).
In a nutshell: I had to set the empty backing bean value in the preceding controller method so that the follow-on method and JSP page have it to work with.
Hope this helps someone else avoid my mistake.
Mark

Spring MVC - Multiple submit button to a Form

I am trying to have 2 submit buttons post to a form, with each button action mapped to different controllers. Here are my mappings
#RequestMapping(value="/save", method=RequestMethod.POST, params="save")
#RequestMapping(value="/save", method=RequestMethod.POST, params="renew")
And my submit buttons look like these -
<input type="submit" name="save" class="button" value="Save" />
<input type="submit" name="renew" class="button" value="Renew" />
As you can see from my mapping, I am relying on the use of params to differentiate what button was clicked on. The problem is that it works 90% of the time but sometimes I get the exception below -
java.lang.IllegalStateException: Ambiguous handler methods mapped for HTTP path 'http://localhost:8090/myapp/save': {public java.lang.String com.myapp.SaveController.save(MyEntity,javax.servlet.http.HttpSession), public java.lang.String com.myapp.SaveController.saveAndRenew(MyEntity,javax.servlet.http.HttpSession)}
org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.lookupHandlerMethod(AbstractHandlerMethodMapping.java:248)
org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:194)
Strangely, when this happens and I re-submit the page, everything works fine afterwards. Is there a better way to achieve what I'm trying to do ?
Thanks!

if the form has these buttons specified:
input type="submit" class="button" name="save" value="Save"
input type="submit" class="button" name="delete" value="Delete"
input type="submit" class="button" name="cancel" value="Cancel"
you may direct to different url request according to button pressed with one controller.
for cancel button,
#RequestMapping(params = "cancel", method = RequestMethod.POST)
public String cancelUpdateUser(HttpServletRequest request) {
return "redirect:/users.html";
}
what request mapping does is to scan post request if it contains params name = cancel.
for save button,
#RequestMapping(params = "save", method = RequestMethod.POST)
public String saveUser(HttpServletRequest request, #ModelAttribute User user, BindingResult result, SessionStatus status) {
// validate your result
// if no errors, save it and redirect to successView.
}

Why not:
<input type="submit" name="action" value="save" />
and then:
#RequestMapping(value="/save", method=RequestMethod.POST)
public String handlePost(#RequestParam String action){
if( action.equals("save") ){
//handle save
}
else if( action.equals("renew") ){
//handle renew
}
}

If You have more controller methods with the same #RequestMapping that differs only in params attribute, You have to explicitly write:
which parameter is supposed to be present in the request, e.g. params="save"
which parameter is NOT supposed to be present in the request, e.g. params="!save"
In Your case:
#RequestMapping(value="/save", method=RequestMethod.POST, params={"save", "!renew"})
#RequestMapping(value="/save", method=RequestMethod.POST, params={"renew", "!save"})
This should fix error Ambiguous handler methods mapped for HTTP path ...
See Spring Web API 4.0.x - RequestMapping#params

Just create one controller with a method similar to this
#RequestMapping(value="/save", method=RequestMethod.POST)
public String handlePost(#RequestParam(required=false , value = "save") String saveFlag , #RequestParam(required=false , value = "renew") String renewFlag){
if(saveFlag != null{
//handle save
}
else if(renewFlag !=null{
//handle renew
}
}

One more solution:
#RequestMapping(value="/save", method={RequestMethod.POST}, params={"save=Save"})
#RequestMapping(value="/save", method={RequestMethod.POST}, params={"renew=Renew"})