Spring中@Autowired和@Resource注解的使用区别详解

@Component
public class MyClass {
    // 名为 "myBean1" 的 bean 将会被注入
    @Resource(name = "myBean1")
    private MyBean myBean;
}

@Component
public class MyClass {
    // 名为“mybean”的bean将被注入
    @Resource
    private MyBean myBean;
}

public interface MyService {
    void fetchData();
}
@Component
public class MyServiceA implements MyService {
    public void fetchData() {
        System.out.println("from MyServiceA");
    }
}
@Component
public class MyServiceB implements MyService {
    public void fetchData() {
        System.out.println("from MyServiceB");
    }
}
@Component
public class DataProcessor {
    // 根据指定type注入myServiceA的bean
    @Resource(type = MyServiceA.class)
    private MyService myService;
    // 与上面效果相同注入myServiceA的bean
    @Resource
    private MyServiceA myServiceA;
    // 与上面效果相同注入myServiceA的bean
    @Resource
    private MyService myServiceA;
    // 与上面效果相同注入myServiceA的bean
    @Resource(name = "myServiceA")
    private MyService myService;
    // 注入bean失败，存在两个bean
    @Resource
    private MyService myService;
}