404 error redirect in Spring with Java config

Question

As you know, in XML, the way to configure this is:

<error-page>     <error-code>404</error-code>     <location>/my-custom-page-not-found.html</location> </error-page> 

But I haven't found a way to do it in Java config. The first way I tried was:

@RequestMapping(value = "/**") public String Error(){     return "error"; } 

And it appeared to work, but it has conflicts retrieving the resources.

Is there a way to do it?

Answer 1

In Spring Framework, there are number of ways of handing exceptions (and particularly 404 error). Here is a documentation link.

• First, you can still use error-page tag in web.xml, and customize error page. Here is an example.

• Second, you can use one @ExceptionHandler for all controllers, like this:

  @ControllerAdvice public class ControllerAdvisor {       @ExceptionHandler(NoHandlerFoundException.class)      public String handle(Exception ex) {          return "404";//this is view name     } } 

  For this to work, set throwExceptionIfNoHandlerFound property to true for DispatcherServlet in web.xml:

  <init-param>     <param-name>throwExceptionIfNoHandlerFound</param-name>     <param-value>true</param-value> </init-param> 

  You can also pass some objects to error view, see javadoc for this.