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Spring Data JPA with Spring Boot Applications - Oracle - example

This page gives an example to configure Spring Boot application with Spring Data JPA.

Include below dependencies in your pom.xml file:

1) spring-boot-starter-data-jpa

2) Oracle Driver (ojdbc7.jar)

3) HikariCP 2.6 (to maintain connection pool)

Here is the example pom.xml for your reference:

<project xmlns="" xmlns:xsi=""



            <!-- include Spring data JPA dependencies, exclude default tomcat pool-->
        <!-- Oracle JDBC driver -->

        <!-- HikariCP connection pool -->

                        <!-- Package as an executable jar/war -->

Entity Class - Employee

Employee Class
package com.java2novice.springboot.models;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.SequenceGenerator;

public class Employee {

    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "emp_seq")
    @SequenceGenerator(sequenceName = "emp_seq", allocationSize = 1, name = "emp_seq")
        @Column(name = "emp_id")
    private Long empId;

        private String name;

        private Integer age;

        private Integer salary;

        public Long getEmpId() {
                return empId;

        public void setEmpId(Long empId) {
                this.empId = empId;

        public String getName() {
                return name;

        public void setName(String name) {
       = name;

        public Integer getAge() {
                return age;

        public void setAge(Integer age) {
                this.age = age;

        public Integer getSalary() {
                return salary;

        public void setSalary(Integer salary) {
                this.salary = salary;

You can have your DB datasource related configurations at file as shown below:
# Oracle DB Settings

# HikariCP settings


Create Spring Data CrudRepository:

package com.java2novice.springboot.dao;

import java.util.List;


import com.java2novice.springboot.models.Employee;

public interface EmployeeDao extends CrudRepository<Employee, Long>{

        List<Employee> findByName(String name);

Spring Boot Starter

package com.java2novice.springboot;

import javax.sql.DataSource;
import org.springframework.transaction.annotation.Transactional;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

import com.java2novice.springboot.dao.EmployeeDao;

public class SpringBootWebApplication implements CommandLineRunner{

        private static Logger logger = LoggerFactory.getLogger(SpringBootWebApplication.class);

    private DataSource dataSource;

        private EmployeeDao employeeDao;

        public static void main(String[] args) throws Exception {

      , args);

        @Transactional(readOnly = true)
    public void run(String... args) throws Exception {

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  18. Spring Data JPA with Spring Boot Applications - Oracle - example
  19. Spring Data JPA with Spring Boot Applications - MySql example
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  24. How to configure multiple DataSources (Databases) with Spring Boot and Spring Data?
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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