Spring Boot API Call With Multiple @Requestparam

Spring boot API call with multiple @RequestParam

Your problem is very simple - in your call

$ curl -X GET http://localhost:8080/api/v1/appointments/findWithRange?start=2018-10-01&end=2018-10-15

& sign tell operation system 'run curl -X GET http://localhost:8080/api/v1/appointments/findWithRange?start=2018-10-01 in background'. This is a reason why end date is undefined.

Just surround your URL in double quotes:

$ curl -X GET "http://localhost:8080/api/v1/appointments/findWithRange?start=2018-10-01&end=2018-10-15"

Get multiple RequestParam of one variable

this is how i did it:

if (CollectionUtils.isNotEmpty(lastName)) {
        Criteria lastNameCriteria = new Criteria();
        lastNameCriteria = lastNameCriteria.where("lastName").in(lastName.toArray());
        criterias.add(lastNameCriteria);
    }

How to pass multiple values in RequestParam

You need distinct List params, each one named after the query param.

given
i.e

request: /your-resource?param1=1,2,3¶m2=4,5¶m3=10

@Controller

@RequestMapping
public ResponseEntity<Object> foo(@RequestParam("params1") List<String> param1, @RequestParam("param2") List<String> params2, @RequestParam("param3") List<String> params3 )

Would result in 1,2,3 injected into param1. 4,5 into param2 and 10 into param3.

Multiple optional @RequestParam not fetching Data in spring boot

Finally, I solved the problem by JpaSpecificationExecutor which helps to create dynamic query. The code is given bellow.

UserSpecification.kt

import com.example.demo.entity.User
import org.springframework.data.jpa.domain.Specification
import javax.persistence.criteria.CriteriaBuilder
import javax.persistence.criteria.CriteriaQuery
import javax.persistence.criteria.Root
import java.text.MessageFormat.format

object UserSpecification {

    fun countryContains(country: String?): Specification<User>? {
        return country?.let {
            Specification { root: Root<User>, _: CriteriaQuery<*>, criteriaBuilder: CriteriaBuilder ->
                criteriaBuilder.like(root.get("country"), format("%{0}%", country))
            }
        }
    }

    fun genderContains(gender: String?): Specification<User>? {
        return gender?.let {
            Specification { root: Root<User>, _: CriteriaQuery<*>, criteriaBuilder: CriteriaBuilder ->
                criteriaBuilder.equal(root.get<String>("gender"), gender)
            }
        }
    }

}

UserRepository.kt

@Repository
interface UserRepository: JpaRepository<User, Long>, JpaSpecificationExecutor<User> {

}

UserServiceImpl.kt

@Service
class UserServiceImpl(
    @Autowired private val userRepository: UserRepository
): UserService {

    override fun getUsers(gender: String?, country: String?, pageable: Pageable): Page<User> {
        return userRepository.findAll(
            where(
                countryContains(country)
            ).and(
                genderContains(gender)
            ), pageable
        )
    }
}

multiple requestparam in springboot pageable

With Spring Boot you can just register PageableHandlerMethodArgumentResolver bean

@Bean
public PageableHandlerMethodArgumentResolver pageableResolver() {
    return new PageableHandlerMethodArgumentResolver();
}

In controller

public ResponseEntity<List<Test>> getAllTests(
    @RequestParam (required = false) String search,
    @PageableDefault(page = 0, size = 100) Pageable pageable
) {
    ...
}

And then adjust your query parameters to
...&page=0&size=2

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