springcloud杂记

服务名不要用eureka_client，而应该是eureka-client，不然在使用feign调用其他服务的接口时，启动报错，报错信息为：

java.lang.IllegalStateException: Service id not legal hostname (eureka_client)

在feign中使用熔断器Hystrix时，一开始我是这样写的，将通用路径“/common”放在类上，启动报错，错误信息为：

Caused by: java.lang.IllegalStateException: Ambiguous mapping.

@FeignClient(name = "eureka-client", fallback = HelloServiceFallback.class)@Component@RequestMapping("/common")public interface CommonInterface {    @RequestMapping(value = "/getAyList", method = RequestMethod.GET)    JsonResult getAyList(@RequestParam(value = "id", defaultValue = "0", required = false) String id);}

原因是控制层同一请求映射到两个方法，虽然我检查了一下没有发现相同的RequestMapping，但依旧报错，于是将“/common”放在方法上，就启动成功了。

@FeignClient(name = "eureka-client", fallback = HelloServiceFallback.class)@Componentpublic interface CommonInterface {    @RequestMapping(value = "/common/getAyList", method = RequestMethod.GET)    JsonResult getAyList(@RequestParam(value = "id", defaultValue = "0", required = false) String id);}