Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userController' defined in file

根据你提供的引用内容，Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userController' defined in file是由于"userController"类的依赖注入失败导致的异常。在你的代码中，"UserService"的实现类需要添加@Component注解来进行自动注入。你可以将@Component注解添加到"UserServiceImp"类的上面，代码如下所示：

@Component
public class UserServiceImp implements UserService {
    @Autowired
    private UserRepository userRepository;
    //其他代码
}

这样就会解决依赖注入失败的问题。另外，还要确保在application.properties文件中没有添加错误的配置。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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