nacos openfeign 配置

1，在引用端引入依赖

<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>

2，写接口，复制想调用方法的签名

比如要调用mall-coupon服务下的方法如下

@RestController
@RequestMapping("coupon/coupon")
public class CouponController {
    @Autowired
    private CouponService couponService;

    @RequestMapping("/list")
    public R list(@RequestParam Map<String, Object> params){
        PageUtils page = couponService.queryPage(params);
        return R.ok().put("page", page);
    }
}

写接口，复制方法的签名

@Component
@FeignClient("mall-coupon")//调用服务名
public interface CouponFeignService {
    @RequestMapping("/coupon/coupon/list")
    public R list(@RequestParam Map<String, Object> params);
}

3，启动类开启EnableFeignClients注解

@SpringBootApplication
@EnableFeignClients(basePackages = "com.sanwu.mall.member.openFeign")//扫描的包名
public class MemberApplication {
    public static void main(String[] args) {
        SpringApplication.run(MemberApplication.class, args);
    }
}