How to configure PageableHandlerMethodArgumentResolver in spring boot application

Question

I have a spring boot application and I want to configure PageableHandlerMethodArgumentResolver, I try the following code, but doesn't not work:

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {

    // .......

    @Override
    public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
        PageableHandlerMethodArgumentResolver resolver = new PageableHandlerMethodArgumentResolver();
        resolver.setFallbackPageable(new PageRequest(0, 50));
        argumentResolvers.add(resolver);
        super.addArgumentResolvers(argumentResolvers);
    }
}

Controller method:

@Override
@PreAuthorize("hasRole('ROLE_SYS_ADMIN')")
@RequestMapping(method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<Page<Account>> query(@QuerydslPredicate Predicate predicate,
        @PageableDefault Pageable pageable) {
    return new ResponseEntity<>(accountRepo.findAll(predicate, pageable), HttpStatus.OK);
}

And it is a simple Boot App, just playing with spring boot, with No Empty WebConfig Configuration class

@Configuration
public class WebConfig {

    @Bean
    public Filter html5ModeFilter() {
        return new Html5ModeFilter();
    }
}

And here's a list of my config classes:

Html5ModeFilter.java
SecurityConfig.java
ServletInitializer.java
UserDetailsAdapter.java
WebConfig.java

Answer 1

Drop the @PageableDefault from the:

public ResponseEntity<Page<Account>> query(..., @PageableDefault Pageable pageable) {
    ...
}

PageableDefault annotation looks like this:

public @interface PageableDefault {
    int value() default 10;
    int size() default 10;
    int page() default 0;
    ...
} 

These default values are overriding your fallback value and you will see the first ten results.

Answer 2

Starting in spring-data-commons version 2.0, there is are 2 new classes that will make this kind of thing easier:

• SortHandlerMethodArgumentResolverCustomizer
• PageableHandlerMethodArgumentResolverCustomizer

Unfortunately that's not the version that ships with the current version of Spring Boot (1.5.9), so replace at your own risk.

@Bean 
PageableHandlerMethodArgumentResolverCustomizer sortCustomizer() {
    // s is PageableHandlerMethodArgumentResolver
    return p -> p.setFallbackPageable(new PageRequest(0, 50));
}

This is just an alternative way to now set your fallback. @Ali Dehghani's answer still applies that the Default was overriding the Fallback

Spring Data Web Support