1. system 提供 OAuth2TokenApi 接口

2. gateway 通过 feign 引入 OAuth2TokenApi 接口

yudao-gateway/src/main/java/cn/iocoder/yudao/gateway/GatewayServerApplication.java

@@ -1,9 +1,14 @@
 package cn.iocoder.yudao.gateway;
 
+import cn.iocoder.yudao.module.system.api.auth.OAuth2TokenApi;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.openfeign.EnableFeignClients;
 
 @SpringBootApplication
+@EnableFeignClients(clients = {
+        OAuth2TokenApi.class
+}) // TODO 芋艿：需要改下
 public class GatewayServerApplication {
 
     public static void main(String[] args) {