how to use object of entity manager in spring boot

EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("persistence"); EntityManager entityManager = entityManagerFactory.createEntityManager(); entityManager.getTransaction().begin(); Employee employee = new Employee(); employee.setName("Sanjay"); // Save Entity entityManager.persist(employee); entityManager.getTransaction().commit(); System.out.println("Generated Employee ID = " + employee.getEmployeeId());

spring boot entitymanager example

package com.frugalis.entity;
 
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
 
@Entity
@Table(name = "EMPLOYEE")
public class Employee {
	private int employeeId;
 
	private String name;
 
	@Id
	@Column(name = "EMPLOYEE_ID")
	@GeneratedValue(strategy = GenerationType.IDENTITY)
	public int getEmployeeId() {
		return employeeId;
	}
 
	public void setEmployeeId(int employeeId) {
		this.employeeId = employeeId;
	}
 
	@Column(name = "EMPLOYEE_NAME")
	public String getName() {
		return name;
	}
 
	public void setName(String name) {
		this.name = name;
	}
 
	@Override
	public String toString() {
		return "Employee [ID=" + employeeId + ", Name=" + name + "]";
	}
 
}

Posted by: Guest on June-19-2020

Source

package com.frugalis.entity; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name = "EMPLOYEE") public class Employee { private int employeeId; private String name; @Id @Column(name = "EMPLOYEE_ID") @GeneratedValue(strategy = GenerationType.IDENTITY) public int getEmployeeId() { return employeeId; } public void setEmployeeId(int employeeId) { this.employeeId = employeeId; } @Column(name = "EMPLOYEE_NAME") public String getName() { return name; } public void setName(String name) { this.name = name; } @Override public String toString() { return "Employee [ID=" + employeeId + ", Name=" + name + "]"; } }

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