The and(Sort sort) method defined in the PagingAndSortingRepository interface and implemented in the SimpleJpaRepository class is used to provide sort order to multiple properties, but if we need to sort on multiple properties in the same direction then providing order to every parameter is redundant. To avoid this, Spring Data Jpa Provides us Sort by(Direction direction, String... properties) method. the Direction will be applicable for all the properties passed.
drop database if exists AppleDb;
create database AppleDb;
use AppleDb;
create table apple ( apple_id bigint not null, apple_name varchar(255) default null, taste varchar(255) default null, primary key (apple_id)) engine=innodb;
create table hibernate_sequence (next_val bigint) engine=innodb;
insert into hibernate_sequence values ( 1 );
insert into apple (apple_id, apple_name, taste) values (1, "Macintosh", "tangy");
insert into apple (apple_id, apple_name, taste) values (2, "Macintosh", "sweet");
insert into apple (apple_id, apple_name, taste) values (3, "Macintosh", "juicy");
insert into apple (apple_id, apple_name, taste) values (4, "Macintosh", "tart");
insert into apple (apple_id, apple_name, taste) values (5, "Fuji", "tangy");
insert into apple (apple_id, apple_name, taste) values (6, "Fuji", "sweet");
insert into apple (apple_id, apple_name, taste) values (7, "Fuji", "juicy");
insert into apple (apple_id, apple_name, taste) values (8, "Fuji", "tart");
insert into apple (apple_id, apple_name, taste) values (9, "Gala", "tangy");
insert into apple (apple_id, apple_name, taste) values (10, "Gala", "sweet");
insert into apple (apple_id, apple_name, taste) values (11, "Gala", "juicy");
insert into apple (apple_id, apple_name, taste) values (12, "Gala", "tart");
insert into apple (apple_id, apple_name, taste) values (13, "Jonagold", "tangy");
insert into apple (apple_id, apple_name, taste) values (14, "Jonagold", "sweet");
insert into apple (apple_id, apple_name, taste) values (15, "Jonagold", "juicy");
insert into apple (apple_id, apple_name, taste) values (16, "Jonagold", "tart");
package com.sujan.example.jpa.controller;
import com.sujan.example.jpa.entity.Apple;
import com.sujan.example.jpa.repository.AppleRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Sort;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
import static org.springframework.data.domain.Sort.Direction.ASC;
@RestController
public class AppleController {
@Autowired
private AppleRepository appleRepository;
@GetMapping
void findAllSortBy() {
List<Apple> all = appleRepository.findAll(Sort.by(ASC, new String[]{"appleName", "taste"}));
all.forEach(System.out::println);
}
}
package com.sujan.example.jpa.entity;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
@Data
@Entity
@NoArgsConstructor
public class Apple {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long appleId;
private String appleName;
private String taste;
}
package com.sujan.example.jpa.repository;
import com.sujan.example.jpa.entity.Apple;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
@Repository
public interface AppleRepository extends JpaRepository<Apple, Long> {
}
package com.sujan.example.jpa;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class JpaApplication {
public static void main(String[] args) {
SpringApplication.run(JpaApplication.class, args);
}
}
spring.datasource.url=jdbc:mysql://localhost:3306/AppleDb
spring.datasource.username=root
spring.datasource.password=root
plugins {
id 'org.springframework.boot' version '2.3.3.RELEASE'
id 'io.spring.dependency-management' version '1.0.10.RELEASE'
id 'java'
}
group = 'com.sujan'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '11'
configurations {
compileOnly {
extendsFrom annotationProcessor
}
}
repositories {
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-web'
annotationProcessor 'org.projectlombok:lombok'
compileOnly 'org.projectlombok:lombok'
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
runtimeOnly 'mysql:mysql-connector-java'
testImplementation('org.springframework.boot:spring-boot-starter-test') {
exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
}
}
test {
useJUnitPlatform()
}
curl --location --request GET 'http://localhost:8080/'
Hibernate: select apple0_.apple_id as apple_id1_0_, apple0_.apple_name as apple_na2_0_, apple0_.taste as taste3_0_ from apple apple0_ order by apple0_.apple_name asc, apple0_.taste asc
Apple(appleId=7, appleName=Fuji, taste=juicy)
Apple(appleId=6, appleName=Fuji, taste=sweet)
Apple(appleId=5, appleName=Fuji, taste=tangy)
Apple(appleId=8, appleName=Fuji, taste=tart)
Apple(appleId=11, appleName=Gala, taste=juicy)
Apple(appleId=10, appleName=Gala, taste=sweet)
Apple(appleId=9, appleName=Gala, taste=tangy)
Apple(appleId=12, appleName=Gala, taste=tart)
Apple(appleId=15, appleName=Jonagold, taste=juicy)
Apple(appleId=14, appleName=Jonagold, taste=sweet)
Apple(appleId=13, appleName=Jonagold, taste=tangy)
Apple(appleId=16, appleName=Jonagold, taste=tart)
Apple(appleId=3, appleName=Macintosh, taste=juicy)
Apple(appleId=2, appleName=Macintosh, taste=sweet)
Apple(appleId=1, appleName=Macintosh, taste=tangy)
Apple(appleId=4, appleName=Macintosh, taste=tart)