如何在Spring Boot中创建非共享（原型）Bean

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Scope;

@Configuration
public class AppConfig {

    // 假设Person是一个有状态的类，或者我们希望每次注入都得到一个新实例
    @Bean
    @Scope("prototype") // 声明为原型作用域
    public Person personPrototype() {
        System.out.println("Creating a new Person instance...");
        return new Person("John Doe", 30);
    }

    // 示例：一个使用Person Bean的组件
    // 每次注入PersonService时，它将获得一个全新的Person实例
    @Bean
    public PersonService personService1(Person personPrototype) {
        System.out.println("PersonService1 created with Person instance: " + personPrototype.hashCode());
        return new PersonService(personPrototype);
    }

    @Bean
    public PersonService personService2(Person personPrototype) {
        System.out.println("PersonService2 created with Person instance: " + personPrototype.hashCode());
        return new PersonService(personPrototype);
    }
}

// 假设的Person类
class Person {
    private String name;
    private int age;

    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }

    // getters and setters
    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; }

    @Override
    public String toString() {
        return "Person{" +
               "name='" + name + '\'' +
               ", age=" + age +
               '}';
    }
}

// 假设的PersonService类
class PersonService {
    private final Person person;

    public PersonService(Person person) {
        this.person = person;
    }

    public void doSomething() {
        System.out.println("Service using person: " + person.getName() + ", hash: " + person.hashCode());
    }
}

import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Scope;

@Configuration
public class AnotherAppConfig {

    @Bean
    @Scope(value = ConfigurableBeanFactory.SCOPE_PROTOTYPE) // 使用常量定义原型作用域
    public MyStatefulObject myStatefulObjectPrototype() {
        System.out.println("Creating a new MyStatefulObject instance...");
        return new MyStatefulObject();
    }
}

class MyStatefulObject {
    // ... 类的定义
}