Spring定義bean的三種方式和自動注入

https://www.cnblogs.com/yimian/p/8286558.html

 

自注:springboot或者高版本spring建議使用類似

@Configuration  
public class BeansConfiguration {  
  
    @Bean  
    public Student student(){  
        Student student=new Student();  
        student.setName("張三");  
        student.setTeacher(teacher());  
        return student;  
    }  
  
    @Bean  
    public Teacher teacher(){  
        Teacher teacher=new Teacher();  
        teacher.setName("李四");  
        return teacher;  
    }  
  
}  @Bean註解,然後用@Resource和@Autowired,個人習慣用@Autowired