Getting Not Found failures accessing protected Spring Boot resources

I have a small test Spring Boot application that includes a controller that contains a simple service. The service is just a test service that causes the browser to display some HTML, as shown below:

@RestController
public class TestController
{
   @GetMapping("/testserv")
   public String getUserInformation()
   {
      return("<p>User authenticated!</p>");
   }
}

I also have a configuration class designed to require a user to authenticate in order to access the service. The intent is to make all other services in the application accessible without logging in, while accessing /testserv requires login:

@Configuration
@EnableWebSecurity
public class TestSecure extends WebSecurityConfigurerAdapter
{
   @Override
   protected void configure(HttpSecurity httpSecure) throws Exception
   {
      httpSecure.authorizeRequests()
                .antMatchers("/testserv").authenticated()
                .anyRequest().permitAll();
   }
}

If I run my application without TestSecure class, I can access the /testserv service without problems. However, when I put in the TestSecure class, I get 404 Not Found failures trying to access the service.

I did some more testing. I found that what seems to cause the Not Found failures is the line:

                .antMatchers("/testserv").authenticated()

If I comment out that line I can access /testserv. With that line in there, the application suddenly cannot find the /testserv service and generates the 404 Not Found failures.

I believe I have done everything required in order for this to work, but perhaps I am missing something? Can anyone tell me why using antMatchers() would cause a service to be not found? How can I get proper access to this service?

Answer

The issue is that you are missing @RequestMapping for the controller. I think just adding that annotation should get your code working.

Updated based on OP comment You should also use .formLogin() in order to show the login form

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Answer