@Autowired 注入 xxx required a single bean, but 2 were found xxx

清疚 2023-10-05 20:30 68阅读 0赞

Description:
    
    Field oidGanerator in com.ats.dt.service.impl.KnwNoumenonServiceImpl required a single bean, but 2 were found:
    	- OIDGanerator: defined in file [E:\AAA\dataManager\data-api\target\classes\com\ats\dt\util\OIDGanerator.class]
    	- oIDGanerator: defined by method 'oIDGanerator' in class path resource [com/ats/dt/config/DtRedissonConfig.class]
    
    
    Action:
    
    Consider marking one of the beans as @Primary, updating the consumer to accept multiple beans, or using @Qualifier to identify the bean that should be consumed

问题分析：需要一个bean 但是出现了两个  
解决方案：考虑将其中一个Bean标记为@Primary，更新使用者以接受多个Bean，或使用@Qualifier标识应使用的Bean

@Autowired注入规则  
默认先按照Type注入，如果同一个Type找到多个bean,则又按照name方式对比，如果有多个则会报出异常。  
解决方法：  
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