Spring Boot-Angular - Entering Url in Address Bar results in 404

Question

Need help on the basics - I have integrated Angular and Spring Boot. I made production build of the Angular app and copied the 6 files in the Spring boot static resource fo

Answer 1

If you don't use Spring MVC (for example, you are using Jersey), you can also solve this by using a javax.servlet.Filter:

@Component
@Order(Ordered.HIGHEST_PRECEDENCE)
public class AngularRoutingFilter implements Filter {

  @Override
  public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
    HttpServletRequest httpServletRequest = ((HttpServletRequest) request);
    String requestURI = httpServletRequest.getRequestURI();

    if (shouldDispatch(requestURI)) {
        request.getRequestDispatcher("/").forward(request, response);
    } else {
        chain.doFilter(request, response);
    }
  }

  @Override
  public void init(FilterConfig filterConfig) {}

  @Override
  public void destroy() {}

  private boolean shouldDispatch(String requestURI) {
    /* Exclude/Inlclude URLs here */
    return !(requestURI.startsWith("/api") || requestURI.equals("/"));
  }

}

Answer 2

In the class where you have extended WebMvcConfigurerAdapter in Spring Boot, inside addViewControllers method, you should do something like this

@Override
    public void addViewControllers(final ViewControllerRegistry registry) {
        super.addViewControllers(registry);
      registry.addViewController("/myTask").setViewName("forward:/");
 }

for forwarding, all request, you can do registry.addViewController("/**").setViewName("forward:/");

Update Thanks Jonas for the Suggestion. Since WebMvcConfigurerAdapter is deprecated in Spring 5.0, you can implement the above logic by extending WebMvcConfigurer

Answer 3

// the perfect solution(from jhipster)
@Controller
public class ClientForwardController {
    @GetMapping(value = "/**/{path:[^\\.]*}")
    public String forward() {
        return "forward:/";
    }
}