SpringBoot(??????)@Autowired???@Inject???@Resource

Posted 2021-01-27

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@Resource,@Autowired,@Inject ???3?????????????????????bean????????????????????????????????????????????????????????????

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ANNOTATION	PACKAGE	SOURCE	?????????	????????????	??????
@AutoWired	org.springframework.bean.factory???Spring???????????????	Spring 2.5+	???????????????????????????????????????????????????????????????	??????AutowireAnnotationBeanPostProcessor?????????????????????	????????????????????????/?????????????????????required?????????false?????????????????????bean???????????????
@Resource	javax.annotation,???JSR-250?????????JDK6????????????,Spring????????????2.5??????	Java JSR-250	????????????????????????????????????	??????CommonAnnotationBeanPostProcessor?????????????????????	???@AutoWired????????????????????????name???????????????beanName,?????????name?????????bean??????????????????????????????????????????required??????
@Inject	javax.inject,???JSR-303?????????Spring??????3?????????????????????????????????	Java JSR-330	??????????????????????????????????????????	??????AutowiredAnnotationBeanPostProcessor?????????????????????	???@AutoWired?????????????????????@Inject??????required??????

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2.1 @Inject

?????????@Inject??????????????????@Named????????????????????????????????????????????????

    @Inject
    @Named("mongo")
    private Mongo mongo;

2.2 @Autowired

@Autowired???????????????required??????????????????false??????????????????false??????????????????????????????bean?????????????????????????????????

    @Autowired
    private MongoTemplate mongoTemplate;

2.3 @Resource

@Resource?????????????????????name???????????????

    @Resource(name = "testMapper")
    private TestMapper testMapper;