17
Jul

Create Bean in Setter based with Annotations

Create Bean in Setter based with Annotations
=============================================

Create entity class "Student.java" in entities package as below:

package entities;

public class Student {

	private String id, name;
	private int age;
	private double score;

	public String getId() {
		return id;
	}

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

	public String getName() {
		return name;
	}

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

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public double getScore() {
		return score;
	}

	public void setScore(double score) {
		this.score = score;
	}

}


Step 2: Create StudentConfig.java file contain define beans in annotations package :
====================================================================================

package annotations;
import entities.Student;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Bean;

@Configuration
public class StudentConfig{

@Bean(name="student1")
public Student student1(){
Student student = new Student();
student.setId("st01");
student.setName("student1");
student.setAge(20);
student.setScore(8.9);

}
}

Step 3: Client Application

package entities;

import entities.Student;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.AbstractApplicationContext;
import annotations.StudentConfig;

public class Main {

	public static void main(String[] args) {
		try {
			AbstractApplicationContext context = new AnnotationConfigApplicationContext(StudentConfig.class);

			Student student1 = (Student) context.getBean("student1");

			System.out.println("Student data from beans ");

			System.out.println("Id  " + student1.getId());
			System.out.println("Name" + student1.getName());
			System.out.println("Age  " + student1.getAge());
			System.out.println("Score" + student1.getScore());
			
			context.close();

		} catch (Exception e) {
			System.out.println(e.getMessage());
		}

	}

}


output:

Student data from beans 
Id    st01
Name  Student1
Age   20
Score 8.1

<a href=”http://defectracker.com/wp-content/uploads/2019/07/SpringBeanwithXMLandAnnotationExamples7z.txt”>Sample project for this</a>