Spring Data JPA And Or Example Using Spring Boot

In this tutorial, we will see Spring Data JPA And Or Example using Spring Boot and oracle. We will see what query prepared in both cases with example.

Let’s see how to define the Query method(Query creation from method names) using Spring Data JPA And Or Keywords.

Consider we have an entity called Student.java as below.

package com.netsurfingzone.entity;

@Entity
public class Student {

	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	private int id;

	@Column(name = "name")
	private String name;

	@Column(name = "roll_number")
	private String rollNumber;

	@Column(name = "university")
	String university;
	

}

 

and we have some record in the database as below.

Spring Data JPA And Or Example

 

Query method using And.

public List<Student> findByNameAndRollNumber(String name, String rollNumber);

Generated Query.

 

Hibernate:
select
student0_.id as id1_0_,
student0_.name as name2_0_,
student0_.roll_number as roll_number3_0_,
student0_.university as university4_0_
from
student student0_
where
student0_.name=?
and student0_.roll_number=?

Query method using Or.

public List<Student> findByNameOrRollNumber(String name, String rollNumber);

Generated Query.


Hibernate:
select
student0_.id as id1_0_,
student0_.name as name2_0_,
student0_.roll_number as roll_number3_0_,
student0_.university as university4_0_
from
student student0_
where
student0_.name=?
or student0_.roll_number=?

 

Query method using And and Or together.

public List<Student> findByNameAndRollNumberOrUniversity(String name, String rollNumber, String university);

Generated Query –

Hibernate:
select
student0_.id as id1_0_,
student0_.name as name2_0_,
student0_.roll_number as roll_number3_0_,
student0_.university as university4_0_
from
student student0_
where
student0_.name=?
and student0_.roll_number=?
or student0_.university=?

 

Repository Example.

package com.netsurfingzone.repository;

import java.io.Serializable;
import java.util.List;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

import com.netsurfingzone.entity.Student;

@Repository
public interface StudentRepository extends JpaRepository<Student, Serializable> {

	public List<Student> findByNameAndRollNumber(String name, String rollNumber);
	
	public List<Student> findByNameOrRollNumber(String name, String rollNumber);
	
	public List<Student> findByNameAndRollNumberOrUniversity(String name, String rollNumber, String university);

}

 

Spring Data JPA And Or example using  Spring Boot and oracle.

Open eclipse and create maven project, Don’t forget to check ‘Create a simple project (skip)’ click on next.  Fill all details(GroupId – springdataandor , ArtifactId – springdataandor and name – springdataandor) and click on finish. Keep packaging as the jar.

Modify pom.xml

<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>springdataandor</groupId>
	<artifactId>springdataandor</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>springdataandor</name>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.0.2.RELEASE</version>
	</parent>
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>

		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-jpa</artifactId>
		</dependency>

		<dependency>
			<groupId>com.oracle</groupId>
			<artifactId>ojdbc6</artifactId>
			<version>11.2.0.3</version>
		</dependency>

	</dependencies>
	<build>
		<finalName>${project.artifactId}</finalName>
		<plugins>

			<plugin>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.1</version>
				<configuration>
					<fork>true</fork>
					<executable>C:\Program Files\Java\jdk1.8.0_131\bin\javac.exe</executable>
				</configuration>
			</plugin>


		</plugins>
	</build>
</project>

Note – In pom.xml we have defined javac.exe path in configuration tag. You need to change accordingly i.e where you have installed JDK.

If you see any error for oracle dependency then follow these steps.

Directory structure –

Spring Data JPA And Or Example

 

 

Student.java


package com.netsurfingzone.entity;

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

@Entity
public class Student {

	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	private int id;

	@Column(name = "name")
	private String name;

	@Column(name = "roll_number")
	private String rollNumber;

	@Column(name = "university")
	String university;

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getRollNumber() {
		return rollNumber;
	}

	public void setRollNumber(String rollNumber) {
		this.rollNumber = rollNumber;
	}

	public String getUniversity() {
		return university;
	}

	public void setUniversity(String university) {
		this.university = university;
	}

}

StudentController.java

package com.netsurfingzone.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import com.netsurfingzone.entity.Student;
import com.netsurfingzone.service.StudentService;

@RestController
@RequestMapping(value = "/student")
public class StudentController {

	@Autowired
	private StudentService studentService;

	@RequestMapping(value = "/saveall", method = RequestMethod.POST)
	@ResponseBody
	public List<Student> saveAllStudents(@RequestBody List<Student> studentList) {
		List<Student> studentResponse = (List<Student>) studentService.saveAllStudent(studentList);
		return studentResponse;
	}

	@RequestMapping(value = "/nameandrollNumber/{name}/{rollNumber}", method = RequestMethod.GET)
	@ResponseBody
	public List<Student> findByNameContainingIgnoreCase(@PathVariable String name, @PathVariable String rollNumber) {

		List<Student> studentResponse = (List<Student>) studentService.findByNameAndRollNumber(name, rollNumber);
		return studentResponse;
	}

	@RequestMapping(value = "/nameorrollNumber/{name}/{rollNumber}", method = RequestMethod.GET)
	@ResponseBody
	public List<Student> findByNameOrRollNumber(@PathVariable String name, @PathVariable String rollNumber) {

		List<Student> studentResponse = (List<Student>) studentService.findByNameOrRollNumber(name, rollNumber);
		return studentResponse;
	}

	@RequestMapping(value = "/nameoandrollNumberoruniversity/{name}/{rollNumber}/{university}", method = RequestMethod.GET)
	@ResponseBody
	public List<Student> findByNameAndRollNumberOrUniversity(@PathVariable String name, @PathVariable String rollNumber,
			@PathVariable String university) {

		List<Student> studentResponse = (List<Student>) studentService.findByNameAndRollNumberOrUniversity(name,
				rollNumber, university);
		return studentResponse;
	}

}

 

Note – See more details about @Controller and RestController here.

StudentRepository.java – interface

package com.netsurfingzone.repository;

import java.io.Serializable;
import java.util.List;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

import com.netsurfingzone.entity.Student;

@Repository
public interface StudentRepository extends JpaRepository<Student, Serializable> {

	public List<Student> findByNameAndRollNumber(String name, String rollNumber);
	
	public List<Student> findByNameOrRollNumber(String name, String rollNumber);
	
	public List<Student> findByNameAndRollNumberOrUniversity(String name, String rollNumber, String university);

}

StudentService.java – interface

package com.netsurfingzone.service;

import java.util.List;

import org.springframework.stereotype.Component;

import com.netsurfingzone.entity.Student;

@Component
public interface StudentService {
	public List<Student> saveAllStudent(List<Student> studentList);

	public List<Student> findByNameAndRollNumber(String name, String rollNumber);
	
	public List<Student> findByNameOrRollNumber(String name, String rollNumber);
	
	public List<Student> findByNameAndRollNumberOrUniversity(String name, String rollNumber, String university);

}

Note – See here more about @Component, @Controller, @Service and @Repository annotations here.

StudentServiceImpl.java


package com.netsurfingzone.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.netsurfingzone.entity.Student;
import com.netsurfingzone.repository.StudentRepository;
import com.netsurfingzone.service.StudentService;

@Service("studentServiceImpl")
public class StudentServiceImpl implements StudentService {

	@Autowired
	private StudentRepository studentRepository;

	@Transactional
	public List<Student> saveAllStudent(List<Student> studentList) {
		List<Student> response = (List<Student>) studentRepository.saveAll(studentList);
		return response;
	}

	@Transactional
	public List<Student> findByNameAndRollNumber(String name, String rollNumber) {
		List<Student> response = (List<Student>) studentRepository.findByNameAndRollNumber(name, rollNumber);
		return response;
	}

	@Transactional
	public List<Student> findByNameOrRollNumber(String name, String rollNumber) {
		List<Student> response = (List<Student>) studentRepository.findByNameOrRollNumber(name, rollNumber);
		return response;
	}

	@Transactional
	public List<Student> findByNameAndRollNumberOrUniversity(String name, String rollNumber, String university) {
		List<Student> response = (List<Student>) studentRepository.findByNameAndRollNumberOrUniversity(name, rollNumber,
				university);
		return response;
	}
}

SpringMain.java

package com.netsurfingzone.main;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.context.annotation.ComponentScan;

@SpringBootApplication
@ComponentScan(basePackages = "com.*")
@EntityScan("com.netsurfingzone.entity")
public class SpringMain {
	public static void main(String[] args) {

		SpringApplication.run(SpringMain.class, args);
	}

}

Note – See more details about @ComponentScan here.

JpaConfig.java

package com.netsurfingzone.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;

@Configuration
@EnableJpaRepositories(basePackages = "com.netsurfingzone.repository")
public class JpaConfig {

}

Note – See more details about @Configuration annotations here.

application.properties

# Connection url for the database
spring.datasource.url=jdbc:oracle:thin:@localhost:1521:XE
spring.datasource.username=SYSTEM
spring.datasource.password=oracle2
spring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver
# Show or not log for each sql query
spring.jpa.show-sql = true
spring.jpa.properties.hibernate.format_sql=true 
 
spring.jpa.hibernate.ddl-auto =create
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.Oracle10gDialect
 
server.port = 9091

#show sql values
logging.level.org.hibernate.type.descriptor.sql=trace

#hibernate.show_sql = true
#spring.jpa.hibernate.logging.level.sql =FINE
#show sql statement
#logging.level.org.hibernate.SQL=debug

Let’s run the SpringMain class(run as java application).

Perform saveall operation first using below REST API.

http://localhost:9091/student/saveall

[
    {
        "name": "john",
        "rollNumber": "120",
        "university":"rgtu"
    },
    {
        "name": "mark",
        "rollNumber": "121",
        "university":"rgtu"
    },
    {
        "name": "aric",
        "rollNumber": "123",
        "university":"rgtu"
    },
    {
        "name": "hira",
        "rollNumber": "124",
        "university":"rgtu"
    }
]

 

Response Data.

[
    {
        "id": 1,
        "name": "john",
        "rollNumber": "120",
        "university": "rgtu"
    },
    {
        "id": 2,
        "name": "mark",
        "rollNumber": "121",
        "university": "rgtu"
    },
    {
        "id": 3,
        "name": "aric",
        "rollNumber": "123",
        "university": "rgtu"
    },
    {
        "id": 4,
        "name": "hira",
        "rollNumber": "124",
        "university": "rgtu"
    }
]

 

http://localhost:9091/student/nameandrollNumber/john/120

 

http://localhost:9091/student/nameordrollNumber/john/120

http://localhost:9091/student/nameoandrollNumberoruniversity/john/121/rgtu

 

 

That’s all about Spring Data JPA And Or Example Using Spring Boot and oracle.

 

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Other Spring Data JPA and Hibernate tutorials.

 

Spring Data JPA Docs.