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fix NPE

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fix NPE
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周立 2019-06-27 10:15:47 +08:00 committed by GitHub
parent 14818051ee
commit c6e7b85137
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1 changed files with 6 additions and 3 deletions
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spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/ribbon/NacosRule.java
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@ -36,10 +36,13 @@ public class NacosRule extends AbstractLoadBalancerRule {
String name = loadBalancer.getName(); String name = loadBalancer.getName();
NamingService namingService = this.nacosDiscoveryProperties.namingServiceInstance(); NamingService namingService = this.nacosDiscoveryProperties.namingServiceInstance();
List<Instance> instances = namingService.selectInstances(name, true); List<Instance> instances = namingService.selectInstances(name, true);
List<Instance> instancesToChoose = instances; if (CollectionUtils.isEmpty(instances)) {
log.warn("{}服务当前无任何实例", name);
return null;
}
List<Instance> instancesToChoose = instances;
if (StringUtils.isNotBlank(clusterName)) { if (StringUtils.isNotBlank(clusterName)) {
List<Instance> sameClusterInstances = instances.stream() List<Instance> sameClusterInstances = instances.stream()
.filter(instance -> Objects.equals(clusterName, instance.getClusterName())) .filter(instance -> Objects.equals(clusterName, instance.getClusterName()))
@ -63,4 +66,4 @@ public class NacosRule extends AbstractLoadBalancerRule {
@Override @Override
public void initWithNiwsConfig(IClientConfig iClientConfig) { public void initWithNiwsConfig(IClientConfig iClientConfig) {
} }
} }