启动报错：

Description:

The bean 'xxx' could not be registered. A bean with that name has already been defined and overriding is disabled.

Action:

Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true

这个报错是因为默认情况下feign不允许一个服务定义多个接口类，如果出现多个接口类会报Bean冲突；

例如：

@Component
@FeignClient(name = "user-service",path = "/user")
public interface UserFeignService1 {
	
    @RequestMapping("/register")
    public ResultModel register(@RequestBody xxxDto dto);

}

@Component
@FeignClient(name = "user-service",path = "/user")
public interface UserFeignService2 {
    
    @RequestMapping("/login")
    public ResultModel register(@RequestBody xxxDto dto);

}

解决方案：报错信息提示我们加spring.main.allow-bean-definition-overriding=true配置（有时候不起作用），也可以通过加在@FeignClient注解加contextId属性；

例如：

@Component
@FeignClient(name = "user-service",path = "/user",contextId = "user1")
public interface UserFeignService1 {
	
    @RequestMapping("/register")
    public ResultModel register(@RequestBody xxxDto dto);

}