Difference of @Autowired @Inject @Resource

The main difference is that, @Autowired and @Inject works similar for 100% without any differentiation.These two annotations using AutowiredAnnotationBeanPostProcessor to inject dependencies. But, @Resource uses CommonAnnotationBeanPostProcessor to inject dependencies and there is difference in the order of checking.

@Autowired and @Inject

• Matches by Type
• Restricts by Qualifiers
• Matches by Name

@Resource

• Matches by Name
• Matches by Type
• Restricts by Qualifiers (ignored if match is found by name)

参考

Spring @Autowired Annotation