技術標籤：Springjavaspringbeanspring boot大資料

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APPLICATION FAILED TO START
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Description:

Field adminService in com.lilike.music.controller.AdminController required a single bean, but 2 were found:
	- adminServiceImpl: defined in file [E:\music-website-master\music-server\target\classes\com\lilike\music\service\impl\AdminServiceImpl.class]
 

	- adminServiceImpl1: defined in file [E:\music-website-master\music-server\target\classes\com\lilike\music\service\impl\AdminServiceImpl1.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
 

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

翻譯：考慮將其中一個bean標記為@Primary，更新使用者以接受多個bean，或者使用@Qualifier標識應該使用的bean。

AdminService的兩個實現類在自動裝配時衝突了，可以在其中一個實現類上加
@Primary註解，指定優先裝配：

@Service
 

@Primary
public class AdminServiceImpl implements AdminService {

    @Autowired
    private AdminMapper adminMapper;

    @Override
    public boolean veritypasswd(String name, String password) {

        return adminMapper.verifyPassword(name, password)>0?true:false;
    }
}

也可以在元件上指定名字，然後用@Qualifier指定用哪個元件。

@Service("adminServiceImpl1")
public class AdminServiceImpl1 implements AdminService {

    @Autowired
    private AdminMapper adminMapper;

    @Override
    public boolean veritypasswd(String name, String password) {

        return adminMapper.verifyPassword(name, password)>0?true:false;
    }
}

@Service("adminServiceImpl")
public class AdminServiceImpl implements AdminService {

    @Autowired
    private AdminMapper adminMapper;

    @Override
    public boolean veritypasswd(String name, String password) {

        return adminMapper.verifyPassword(name, password)>0?true:false;
    }
}

@RestController
@Controller
public class AdminController {

    @Autowired
    @Qualifier("adminServiceImpl1")
    private AdminService adminService;
    ……