Spring Cloud报错Error creating bean with name ‘requestMappingHandlerMapping‘

问题描述：

Spring Cloud的Feign做服务调用，同时使用Hystrix来做服务降级。
@FeignClient协同Hystrix来做全局的降级策略时，如果在feign的服务接口上加了@RequestMapping(“xxxx”)全局访问路径
启动就报错**org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘requestMappingHandlerMapping’ defined in class path resource**

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'requestMappingHandlerMapping' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Invocation of init method failed; nested exception is java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'com.zm.springcloud.service.PaymentFeignHystrixService' method 
com.zm.springcloud.service.PaymentFeignHystrixService#paymentInfo_timeout(Integer)
to {GET /payment/payment/hystrix/timeout/{id}}: There is already 'paymentFeignHystrixFallback' bean method
com.zm.springcloud.service.PaymentFeignHystrixFallback#paymentInfo_timeout(Integer) mapped.

错误示例：

例如我定义的

@Component
/**
 * 1、运行时异常
 * 2、超时
 * 3、服务宕机
 */
@FeignClient(value = "CLOUD-PAYMENT-HYSTRIX-SERVICE",fallback = PaymentFeignHystrixFallback.class)
@RequestMapping("/payment")
public interface PaymentFeignHystrixService {

    @GetMapping("/hystrix/ok/{id}")
    String paymentInfo_ok(@PathVariable(value = "id") Integer id);

    @GetMapping("/hystrix/timeout/{id}")
    String paymentInfo_timeout(@PathVariable(value = "id") Integer id);
}

正确示例：

将其改为

@Component
/**
 * 1、运行时异常
 * 2、超时
 * 3、服务宕机
 */
@FeignClient(value = "CLOUD-PAYMENT-HYSTRIX-SERVICE",fallback = PaymentFeignHystrixFallback.class)
//在这里加全局的requestmapping 会直接导致项目起不来，报错Error creating bean with name 'requestMappingHandlerMapping'
//可能和feign的某些机制有关吧
//@RequestMapping("/payment")
public interface PaymentFeignHystrixService {

    @GetMapping("/payment/hystrix/ok/{id}")
    String paymentInfo_ok(@PathVariable(value = "id") Integer id);

    @GetMapping("/payment/hystrix/timeout/{id}")
    String paymentInfo_timeout(@PathVariable(value = "id") Integer id);
}