✨ gateway-远程调用过网关

cloud-demo/ReadMe.md

@@ -1412,3 +1412,23 @@ spring:
    ```
 
 2. **负载均衡**：确保正确配置服务发现和负载均衡器
+
+3. **远程调用是否过网关**
+
+正常的远程调用是不过网关的，毕竟直接调用nacos中服务就行，多走一遍路没什么意思，如果非要过网关可以按照下面格式：
+
+将`value`值修改为`gateway`，通常不建议过网关。
+
+```java
+// Feign 客户端
+// @FeignClient(value = "service-product", path = "/api/product", fallback = ProductFeignClientFallback.class)
+@FeignClient(value = "gateway", path = "/api/product", fallback = ProductFeignClientFallback.class)
+public interface ProductFeignClient {
+
+    // 标注在 Controller 上是接受请求
+    // 标注在 FeignClient 时发送请求
+    @GetMapping("{id}")
+    Product getProduct(@PathVariable("id") Long productId);
+
+}
+```

cloud-demo/gateway/src/main/java/cn/bunny/gateway/filter/RTFilter.java

@@ -20,7 +20,7 @@ public class RTFilter implements GlobalFilter, Ordered {
         ServerHttpRequest request = exchange.getRequest();
         URI uri = request.getURI();
         long start = System.currentTimeMillis();
-        log.error("请求【{}】开始时间：{}", uri, start);
+        log.info("请求【{}】开始时间：{}", uri, start);
 
         // 处理逻辑
         // return chain.filter(exchange)

cloud-demo/services/service-order/src/main/java/cn/bunny/service/feign/ProductFeignClient.java

@@ -7,7 +7,8 @@ import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 
 // Feign 客户端
-@FeignClient(value = "service-product", path = "/api/product", fallback = ProductFeignClientFallback.class)
+// @FeignClient(value = "service-product", path = "/api/product", fallback = ProductFeignClientFallback.class)
+@FeignClient(value = "gateway", path = "/api/product", fallback = ProductFeignClientFallback.class)
 public interface ProductFeignClient {
 
     // 标注在 Controller 上是接受请求