title: When redirect page to another page gives 404 error in spring boot
body: <p>After redirecting url is <a href="http://localhost:8080/signup" rel="nofollow noreferrer">http://localhost:8080/signup</a>, but there is <strong>Whitelabel Error Page</strong> with this message</p>
  
  <blockquote>
    <p>This application has no explicit mapping for /error, so you are seeing this as a fallback.</p>
    
    <p>Wed Jan 11 22:20:52 PST 2017
    There was an unexpected error (type=Not Found, status=404).
    No message available</p>
  </blockquote>
  
  <pre><code>@Controller
  public class SignUp {
      @RequestMapping(value="/")
      public String goMainPage(){
          return "redirect:/signup";
      }   
  }
  </code></pre>