当我输入unexist/bad id of movie get（例如/movies/asd）时，我只看到没有后端属性的html（清除frontend而没有值）。spring（在控制台中）的错误是404，它很好，后端工作正常，但是如何处理这个异常，不显示前端，只需重定向到home或show404站点。
spring（在这种情况下，服务抛出illegalargumentexception）：

@GetMapping
    ResponseEntity<List<MovieReadModel>> getAllMovies() {
        logger.warn("Exposing all the movies!");
        return ResponseEntity.ok(service.readAllMovies());
    @ExceptionHandler(IllegalArgumentException.class)
    ResponseEntity<String> handleIllegalArgument(IllegalArgumentException e) {
        return ResponseEntity.notFound().build();
    }
    @ExceptionHandler(IllegalStateException.class)
    ResponseEntity<String> handleIllegalState(IllegalStateException e) {
        return ResponseEntity.badRequest().body(e.getMessage());
    }
}

Angular ：

export class MovieDetailsComponent implements OnInit {
  currentMovie: Movie = {
    title: '',
    description: '',
    director: '',
    producer: '',
    category: '',
    actors: ['']
  };
  constructor(
    private movieService: MovieService,
    private route: ActivatedRoute
    ) { }
  ngOnInit(): void {
    this.getMovie(this.route.snapshot.params.id)
  }
  getMovie(id: string): void {
    this.movieService.get(id)
      .subscribe(
        data => {
          this.currentMovie = data;
          console.log(data);
        },
        error => {
          console.log(error);
        });
  }
}

路由：

const routes: Routes = [
  { path: 'movies', component: MoviesListComponent},
  { path: 'movies/:id', component: MovieDetailsComponent},
  { path: 'add', component: AddMovieComponent},
  { path: 'profile', component: ProfileComponent },
  { path: 'register', component: RegisterComponent },
  { path: 'login', component: LoginComponent },
  { path: 'user', component: BoardUserComponent },
  { path: 'admin', component: BoardAdminComponent },
  { path: '', redirectTo: 'movies', pathMatch: 'full' }
];