升级请求限流版本，增加失败降级处理

pig-gateway/pom.xml

@@ -32,7 +32,7 @@
         <dependency>
             <groupId>com.marcosbarbero.cloud</groupId>
             <artifactId>spring-cloud-zuul-ratelimit</artifactId>
-            <version>1.3.4.RELEASE</version>
+            <version>1.5.0.RELEASE</version>
         </dependency>
         <!--oauth2.0-->
         <dependency>

pig-gateway/src/main/java/com/github/pig/gateway/componet/handler/ZuulRateLimiterErrorHandler.java

@@ -0,0 +1,37 @@
+package com.github.pig.gateway.componet.handler;
+
+import com.marcosbarbero.cloud.autoconfigure.zuul.ratelimit.config.repository.DefaultRateLimiterErrorHandler;
+import com.marcosbarbero.cloud.autoconfigure.zuul.ratelimit.config.repository.RateLimiterErrorHandler;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * @author lengleng
+ * @date 2018/2/26
+ * 限流降级处理
+ */
+@Slf4j
+@Configuration
+public class ZuulRateLimiterErrorHandler {
+
+    @Bean
+    public RateLimiterErrorHandler rateLimitErrorHandler() {
+        return new DefaultRateLimiterErrorHandler() {
+            @Override
+            public void handleSaveError(String key, Exception e) {
+                log.error("保存key:[{}]异常", key, e);
+            }
+
+            @Override
+            public void handleFetchError(String key, Exception e) {
+                log.error("路由失败:[{}]异常", key);
+            }
+
+            @Override
+            public void handleError(String msg, Exception e) {
+                log.error("限流异常:[{}]", msg, e);
+            }
+        };
+    }
+}