BAEL-3737 Calling Stored Procedures from Spring Data JPA Repositories

This commit is contained in:
Gang Wu 2020-02-09 20:58:12 -07:00
parent 6dcb329bbc
commit 88a4663190
9 changed files with 237 additions and 0 deletions

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.4.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.baeldung</groupId>
<artifactId>jpa</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>spring-boot-jpa</name>
<description>spring-boot-jpa</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

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package com.baeldung.jpa;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringBootJpaApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootJpaApplication.class, args);
}
}

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package com.baeldung.jpa.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import com.baeldung.jpa.entity.Car;
import com.baeldung.jpa.service.CarService;
@RestController
public class CarController {
@Autowired
private CarService carService;
@GetMapping(path = "/modelcount")
public long getTotalCarsByModel(@RequestParam("model") String model) {
return carService.getTotalCarsByModel(model);
}
@GetMapping(path = "/carsafteryear")
public List<Car> findCarsAfterYear(@RequestParam("year") Integer year) {
return carService.findCarsAfterYear(year);
}
}

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package com.baeldung.jpa.entity;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
@Entity
public class Car {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column
private long id;
@Column
private String model;
@Column
private Integer year;
public long getId() {
return id;
}
public String getModel() {
return model;
}
public Integer getYear() {
return year;
}
}

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package com.baeldung.jpa.repository;
import java.util.List;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.jpa.repository.query.Procedure;
import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Repository;
import com.baeldung.jpa.entity.Car;
@Repository
public interface CarRepository extends JpaRepository<Car, Integer> {
@Procedure(procedureName = "GET_TOTAL_CARS_BY_MODEL")
int getTotalCarsByModel(@Param("model_in") String model);
@Query(value = "CALL FIND_CARS_AFTER_YEAR(:year_in);", nativeQuery = true)
List<Car> findCarsAfterYear(@Param("year_in") Integer year_in);
}

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package com.baeldung.jpa.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.baeldung.jpa.entity.Car;
import com.baeldung.jpa.repository.CarRepository;
@Service
public class CarService {
@Autowired
private CarRepository carRepository;
public int getTotalCarsByModel(String model) {
return carRepository.getTotalCarsByModel(model);
}
public List<Car> findCarsAfterYear(Integer year) {
return carRepository.findCarsAfterYear(year);
}
}

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#spring.jpa.hibernate.ddl-auto=validate
#MySql
spring.datasource.url=jdbc:mysql://localhost:3306/baeldung
spring.datasource.username=baeldung
spring.datasource.password=baeldung
#spring.datasource.driver-class-name=com.mysql.jdbc.Driver
#spring.datasource.platform=mysql
#spring.datasource.initialization-mode=always
#spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect
#For debugging
#spring.jpa.show-sql = true

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DROP TABLE IF EXISTS car;
CREATE TABLE car (id int(10) NOT NULL AUTO_INCREMENT,
model varchar(50) NOT NULL,
year int(4) NOT NULL,
PRIMARY KEY (id));
INSERT INTO car (model, year) VALUES ('BMW', 2000);
INSERT INTO car (model, year) VALUES ('BENZ', 2010);
INSERT INTO car (model, year) VALUES ('PORCHE', 2005);
INSERT INTO car (model, year) VALUES ('PORCHE', 2004);
DELIMITER $$
DROP PROCEDURE IF EXISTS FIND_CARS_AFTER_YEAR$$
CREATE PROCEDURE FIND_CARS_AFTER_YEAR(IN year_in INT)
BEGIN
SELECT * FROM car WHERE year >= year_in ORDER BY year;
END$$
DROP PROCEDURE IF EXISTS GET_TOTAL_CARS_BY_MODEL$$
CREATE PROCEDURE GET_TOTAL_CARS_BY_MODEL(IN model_in VARCHAR(50), OUT count_out INT)
BEGIN
SELECT COUNT(*) into count_out from car WHERE model = model_in;
END$$
DELIMITER ;

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package com.baeldung.jpa;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class SpringBootJpaApplicationTests {
@Test
void contextLoads() {
}
}