Request Post not allowed for controller, but get works - spring-boot

Question

I have a spring-boot with a cors. I want set a static page controller,
I want return a static html page for same post/get request.
The get request works, but with the post request i have :
{
"timestamp": 1563296215801,
"status": 405,
"error": "Method Not Allowed",
"message": "Request method 'POST' not supported",
"path": "/test"
}
My code :
#Controller
#RequestMapping("/")
public class StaticPageController implements WebMvcConfigurer {
#Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/test").setViewName(
"test");
}
#RequestMapping(value = "test", method = { RequestMethod.GET,
RequestMethod.POST })
public String test() {
return "test";
}
#Bean
public ViewResolver getViewResolver() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("folder/");
resolver.setSuffix(".html");
return resolver;
}
#Override
public void configureDefaultServletHandling(
DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
}
With the post request, my breakpoint in 'return "test";' is fired. But after i have a 405 error...
Any ideas ?

Answer 1

You are facing the issue because along with configuring the GET endpoint for /test , you have also configured the ViewControllerRegistry to return the view test to /test url.
The ViewControllerRegistry is configured whenever you want to serve a static content without the need of a controller. So , try removing that and your controller method should work as expected because by default only GET is supported by ViewControllerRegistry.
Assists with the registration of simple automated controllers pre-configured with status code and/or a view. ViewControllerRegistry
registers view controller.
We need not to create actual controller class when using ViewControllerRegistry. It is used when we just need to map a URL
with a view. addViewController(String urlPath): It adds a view
controller for the given URL.
This method returns ViewControllerRegistration and using ViewControllerRegistration.setViewName() a corresponding view is
mapped. addRedirectViewController(String urlPath, String
redirectUrl): It maps a URL to another URL to redirect on it. It has
been introduced in spring 4.1.
addStatusController(String urlPath, HttpStatus statusCode): It maps a URL with given status code. It has also been introduced in spring
4.1.
Try using :
#Controller
#RequestMapping("/")
public class StaticPageController implements WebMvcConfigurer {
#RequestMapping(value = "test", method = { RequestMethod.GET,
RequestMethod.POST })
public String test() {
return "test";
}
#Bean
public ViewResolver getViewResolver() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("folder/");
resolver.setSuffix(".html");
return resolver;
}
#Override
public void configureDefaultServletHandling(
DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
}