web.servlet.PageNotFound ,Request method 'GET' not supported,Spring

Question

I encounter a strange problem in my Spring MVC Controller.

I have four pages in my webapp folder

@Controller
public class WelcomeController {

    @RequestMapping(value="/wodi/welcome",method=RequestMethod.GET)
    public String welcome(){
        return "redirect:/pages/webwelcome.html";
    }
}

Just now, it worked fine to find the page http://localhost:8080/pages/webwelcome.html, but now I have the error that the browser says:

There was an unexpected error (type=Method Not Allowed, status=405).
Request method 'GET' not supported

I have no idea what I did that influence it.

I read WARN : org.springframework.web.servlet.PageNotFound - Request method 'GET' not supported

But this is not the same case as mine since I am using "GET" method.

Below is my Application.java to Boot the Spring app

@Configuration
@EnableAutoConfiguration
@ComponentScan({"hello","wodinow.weixin.jaskey"})
public class Application {

    public static void main(String[] args) {
        ApplicationContext ctx = SpringApplication.run(Application.class, args);

        System.out.println("Let's inspect the beans provided by Spring Boot:");

        String[] beanNames = ctx.getBeanDefinitionNames();
        Arrays.sort(beanNames);
        for (String beanName : beanNames) {
            System.out.println(beanName);
        }
    }

    @Bean
    public CommandService commandService(){
        return CommandService.getInstance();
    }

}

Answer 1

In my case everything was ok. But i have a problem in a controller

that was my problem @RequestMapping( method = RequestMethod.GET)

y change for this:

@RequestMapping(value = "/usuario", method = RequestMethod.GET)

and it works

Answer 2

The ViewResolver registered in your application configuration is responsible for resolving pages from a given URL.

Example: Config for resolving URLs like /welcome to corresponding JSP file /pages/welcome.jsp

<bean
  class="org.springframework.web.servlet.view.InternalResourceViewResolver">
  <property name="viewClass"
    value="org.springframework.web.servlet.view.JstlView" />
  <property name="prefix" value="/pages/" />
  <property name="suffix" value=".jsp" />
</bean>

However, JSP pages are dynamic and need special handling. For static resources like plain html pages, it is sufficient to set up a static mapping for your pages folder.

<mvc:resources location="/pages/" mapping="/**" />

This would result in all resources in the folder /pages being mapped to URLs starting with "/". For example: /pages/welcome.html would be accessible by http://yourdomain/welcome.html

And if you want to set up a view resolver for one specific URL you can use a view-controller in the configuration:

<mvc:view-controller path="/wodi/welcome" view-name="/pages/webwelcome.html"/>

UPDATE:

As you are using Spring Boot with @EnableAutoConfiguration you are already using the second method. Here you can see a code snippet from the AutoConfiguration implementation. It shows that a ResourceHandler is added to URL /** with some predefined locations.

If you want custom URL mappings, I suggest you use one of the above mentioned methods in a plain Spring MVC configuration. Here is the documentation for enabling Spring MVC config. You can decide yourself if you use xml or annotation based configuration.

Answer 3

Unless you put really weird thing in your config, the (embedded) container should be able to serve static content or JSP that are not under WEB-INF. The only use case where problem could happen would be if you map Spring DispatcherServlet to /* of forget to allow the serving of static resources.

You will find more references on the serving of static resources on my other post Match for root url and serving of static resources.

But usually, in a controller you do not redirect to a HTML page, but give the name of a view and the view resolver finds the appropriate view.