添加try catch

Author: saleson

spring-cloud-gray-client-netflix/src/main/java/cn/springcloud/gray/client/netflix/ribbon/GrayChooserRule.java

@@ -5,7 +5,9 @@
 import com.google.common.base.Optional;
 import com.netflix.loadbalancer.Server;
 import com.netflix.loadbalancer.ZoneAvoidanceRule;
+import lombok.extern.slf4j.Slf4j;
 
+@Slf4j
 public class GrayChooserRule extends ZoneAvoidanceRule {
 
     private ServerChooser<Server> serverChooser;