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>
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