Spring-IOC创建对象的方式

public class User {
    private String name;

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

    public User() {
        System.out.println("无参构造");
    }

    public User(String name) {
        System.out.println("有参构造");
        this.name = name;
    }

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

public class Test {
    public static void main(String[] args) {
        ApplicationContext applicationContext =
                new ClassPathXmlApplicationContext("ApplicationContext.xml");
        User user = applicationContext.getBean(User.class);
        System.out.println(user);
    }
}

public class UserFactory {
    public static User newInstance(String name) {
        System.out.println("静态工厂创建");
        return new User(name);
    }
}

public class UserDynamicFactory {
    public User newInstance(String name) {
        System.out.println("动态工厂创建");
        return new User(name);
    }
}