我正在嘗試讓?xiě)?yīng)用程序在 Spring-boot 中工作，但遇到注入錯(cuò)誤。我有一個(gè)帶有一些@Autowire 類的@Service。我們的類只是帶有一個(gè)public setDatSource方法的 POJO，我需要通過(guò)運(yùn)行時(shí)設(shè)置數(shù)據(jù)源。見(jiàn)下文：    @Bean    @Qualifier("datasetDao")    public com.lexi.dao.core.DatasetDAO getDatasetDao() throws NamingException {        DatasetDAOImpl ds = new DatasetDAOImpl();        ds.setDataSource(createAuthReadDataSoure());        return ds;    }    @Bean    public LicenseDAO getLicenseDao() throws NamingException {        LicenseDAOImpl ds = new LicenseDAOImpl();        ds.setReadDataSource(createOnlineDSReadDataSoure());        ds.setWriteDataSource(createOnlineDSWriteDataSoure());        ds.setDistribDataSource(createAuthReadDataSoure());        return ds;    }我有一個(gè)服務(wù)定義如下：@Servicepublic class LicenseService {    @Autowired    @Qualifier("datasetDao")    private DatasetDAO datasetDao;    @Autowired    private LicenseDAO licenseDao;但是，當(dāng)我運(yùn)行該應(yīng)用程序時(shí)，我得到以下信息：***************************APPLICATION FAILED TO START***************************Description:Field datasetDao in com.wk.online.services.LicenseService required a single bean, but 3 were found:    - createAuthReadDataSoure: defined by method 'createAuthReadDataSoure' in com.wk.online.ws.OnlineWsApplication    - createOnlineDSReadDataSoure: defined by method 'createOnlineDSReadDataSoure' in com.wk.online.ws.OnlineWsApplication    - createOnlineDSWriteDataSoure: defined by method 'createOnlineDSWriteDataSoure' in com.wk.online.ws.OnlineWsApplicationAction: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我嘗試添加一個(gè)@Qualifier，但這似乎與Spring 不一致。我錯(cuò)過(guò)了什么，我已經(jīng)這樣做了一段時(shí)間，并認(rèn)為我正在做一些非常愚蠢的事情。