Summary of Java JPA learning resources: books, tutorials, and online courses

Resource summary and introduction to learning Java JPA

A collection of Java JPA learning resources carefully compiled by php editor Xinyi, including books, tutorials and online courses, providing Java developers with a full range of learning and improvement opportunities. Whether you are a beginner or an experienced developer, you can find learning materials that suit you, systematically learn Java JPA technology, and improve your skills. Let us explore these colorful learning resources together and start the Java JPA journey!

The following are books, tutorials and online courses that can helplearn Java JPA:

books

• "Java Persistence API (JPA) Tutorial (Second Edition)": This is a comprehensive introduction to JPA, very suitable for beginners and experienced developers. This book covers basic JPA concepts such as entities, relationships, queries, and transactions, as well as more advanced topics such as inheritance, polymorphism, and Performance Optimization.
• "Pro JPA 2": This is a more in-depth JPA book suitable for experienced developers. This book covers all aspects of JPA, from basic concepts to advanced topics, and provides extensive sample code and techniques.
• "Java Persistence with Hibernate": This is a book about using Hibernate to implement JPA. Hibernate is a popular JPA implementation framework. This book provides a detailed introduction and provides a large number of sample codes and techniques.

Tutorial

There are many online tutorials to help you learn JPA. Here are some of the most popular tutorials:

• 《Java Persistence API (JPA) Tutorial》: This tutorial is provided by oracle. It provides the basic knowledge of JPA and is very suitable for beginners.
• 《JPA Tutorial》: This tutorial is provided by JBoss and covers all aspects of JPA, from basic concepts to advanced topics.
• 《Hibernate Tutorial》: This tutorial is provided by Hibernate, which introduces how to use Hibernate to implement JPA.

Online courses

There are many online courses to help you learn JPA. Here are some of the most popular online courses:

• "Java Persistence API (JPA) Specialization": This course is provided by Coursera. It provides a complete introduction to JPA and is very suitable for beginners.
• 《JPA Tutorial》: This course is provided by Udemy and it covers all aspects of JPA, from basic concepts to advanced topics.
• 《Hibernate Tutorial》: This course is provided by Pluralsight, which introduces how to use Hibernate to implement JPA.

Demo

The following is a simple Java JPA example that shows how to use JPA to store and retrieve data:

import javax.persistence.*;

@Entity
public class Person {

@Id
@GeneratedValue
private Long id;

private String name;

private int age;

// getters and setters
}

public class Main {

public static void main(String[] args) {
EntityManagerFactory emf = Persistence.createEntityManagerFactory("my-persistence-unit");
EntityManager em = emf.createEntityManager();

Person person = new Person();
person.setName("John Doe");
person.setAge(30);

em.persist(person);

em.getTransaction().begin();
em.getTransaction().commit();

Person foundPerson = em.find(Person.class, person.getId());

System.out.println(foundPerson.getName()); // prints "John Doe"

em.close();
emf.close();
}
}

This example creates an entity class named Person that contains an ID, a name, and an age. It then uses the EntityManagerFactory and EntityManager to store and retrieve Person objects.

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