异常笔记：UnsatisfiedDependencyException

今天在写微服务项目&＃xff0c;启动auth服务时&＃xff0c;SpringBoot报了 UnsatisfiedDependencyException异常&＃xff0c;日志记录如下&＃xff1a;

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘tokenController’: Unsatisfied dependency expressed through field ‘sysLoginService’; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘sysLoginService’: Unsatisfied dependency expressed through field ‘remoteUserService’; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘org.anyCcCN.sjm.api.system.RemoteUserService’: Unexpected exception during bean creation; nested exception is java.lang.IllegalStateException: No fallbackFactory instance of type class org.anyCcCN.sjm.api.system.factory.RemoteUserFallbackFactory found for feign client remoteUserService

经过排除发现在SysLoginService中添加 RemoteUserService接口后就会导致报错

&＃64;Component
public class SysLoginService {&＃64;Autowiredprivate RemoteUserService remoteUserService;public String test() {System.out.println("auth " );return remoteUserService.test();}
}


原因是RemoteUserService接口的实现类并没有注入到 spring容器中&＃xff0c;所以在使用&＃64;Autowired注解获取接口时就会报错。