Redirect to an external URL from controller action in Spring MVC

Question

I have noticed the following code is redirecting the User to a URL inside the project     RequestMapping method   RequestMethod POST  public String processForm HttpServletRequest request  LoginForm loginForm                             BindingResult result  ModelMap model         String redirectUrl    yahoo com       return  redirect     redirectUrl      whereas  the following is redirecting properly as intended  but requires http    or https      RequestMapping method   RequestMethod POST      public String processForm HttpServletRequest request  LoginForm loginForm                                 BindingResult result  ModelMap model                 String redirectUrl    http   www yahoo com           return  redirect     redirectUrl          I want the redirect to always redirect to the URL specified  whether it has a valid protocol in it or not and do not want to redirect to a view  How can I do that   Thanks

User · Answer

You can use the RedirectView  Copied from the JavaDoc      View that redirects to an absolute  context relative  or current request relative URL   Example    RequestMapping   to-be-redirected   public RedirectView localRedirect         RedirectView redirectView   new RedirectView        redirectView setUrl  http   www yahoo com        return redirectView      You can also use a ResponseEntity  e g    RequestMapping   to-be-redirected   public ResponseEntity lt Object gt  redirectToExternalUrl   throws URISyntaxException       URI yahoo   new URI  http   www yahoo com        HttpHeaders httpHeaders   new HttpHeaders        httpHeaders setLocation yahoo       return new ResponseEntity lt  gt  httpHeaders  HttpStatus SEE OTHER       And of course  return redirect http   www yahoo com as mentioned by others

User · Answer

In short  redirect   yahoo com  will lend you to yahoo com   where as  redirect yahoo com  will lend you your-context yahoo com ie for ex- localhost 8080 yahoo com

User · Answer

Looking into the actual implementation of UrlBasedViewResolver and RedirectView the redirect will always be contextRelative if your redirect target starts with    So also sending a   yahoo com path to resource wouldn t help to get a protocol relative redirect   So to achieve what you are trying you could do something like    RequestMapping method   RequestMethod POST  public String processForm HttpServletRequest request  LoginForm loginForm                             BindingResult result  ModelMap model         String redirectUrl   request getScheme         www yahoo com       return  redirect     redirectUrl

User · Answer

You can do this in pretty concise way using ResponseEntity like this      GetMapping   ResponseEntity lt Void gt  redirect         return ResponseEntity status HttpStatus FOUND           location URI create  http   www yahoo com             build

User · Answer

For external url  you have to use  http   www yahoo com  as the redirect url   This is explained in the redirect  prefix of Spring reference documentation       redirect  myapp some resource   will redirect relative to the current Servlet context  while a name such as      redirect http   myhost com some arbitrary path   will redirect to an absolute URL

User · Answer

For me works fine    RequestMapping  value      id    method   RequestMethod GET  public ResponseEntity lt Object gt  redirectToExternalUrl   throws URISyntaxException       URI uri   new URI  http   www google com        HttpHeaders httpHeaders   new HttpHeaders        httpHeaders setLocation uri       return new ResponseEntity lt  gt  httpHeaders  HttpStatus SEE OTHER

User · Answer

Another way to do it is just to use the sendRedirect method    RequestMapping      value            method   RequestMethod GET  public void redirectToTwitter HttpServletResponse httpServletResponse  throws IOException       httpServletResponse sendRedirect  https   twitter com

User · Answer

You can do it with two ways    First    RequestMapping value     redirect   method   RequestMethod GET  public void method HttpServletResponse httpServletResponse        httpServletResponse setHeader  Location   projectUrl       httpServletResponse setStatus 302       Second    RequestMapping value     redirect   method   RequestMethod GET  public ModelAndView method         return new ModelAndView  redirect     projectUrl

User · Answer

Did you try RedirectView where you can provide the contextRelative parameter

[java] Redirect to an external URL from controller action in Spring MVC

Examples related to java

Examples related to spring

Examples related to jsp

Examples related to spring-mvc