Spring Cloud LoadBalancerClient-Hoxton SR8-抛出错误

问题描述

以前使用的是Spring Cloud Finchley.M9版本。我们按如下所示使用LoadBalancerClient。

'''import java.net.URI;
import java.util.Objects;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.loadbalancer.LoadBalancerClient;
import org.springframework.stereotype.Component;

@Component
public class UriResolver {

    private static final Logger LOGGER = LoggerFactory.getLogger(UriResolver.class);

    private LoadBalancerClient loadBalancerClient;

    @Autowired
    public UriResolver(LoadBalancerClient loadBalancerClient) {
        this.loadBalancerClient = loadBalancerClient;
    }

    public URI getBaseUri(String vendorName) {
        ServiceInstance instance = loadBalancerClient.choose(vendorName);
        URI uri = null;
        if (!Objects.isNull(instance)) {
            uri = instance.getUri();
            LOGGER.debug("LoadBalancer Instance specific URI: " + instance.getUri());
            LOGGER.debug("LoadBalancer Instance specific ServiceId: " + instance.getServiceId());
            LOGGER.debug("LoadBalancer Instance specific Host: " + instance.getHost());
        }
        return uri;
    }

}'''

现在，我们已经将Spring Cloud版本升级到Hoxton.SR8。在启动spring boot应用程序时，我们得到以下错误。

未加载'RibbonAutoConfiguration'中的Bean方法'loadBalancerClient'，因为未匹配2的AllnestedConditions 2； RibbonAutoConfiguration.RibbonClassesConditions.RibbonPresent @ConditionalOnClass上的nestedCondition找不到所需的类'com.netflix.ribbon.Ribbon'; RibbonAutoConfiguration.RibbonClassesConditions.AsyncRestTemplatePresent @ConditionalOnClass上的nestedCondition找到了所需的类'org.springframework.web.client.AsyncRestTemplate'; RibbonAutoConfiguration.RibbonClassesConditions.RestTemplatePresent @ConditionalOnClass上的nestedCondition找到了所需的类'org.springframework.web.client.RestTemplate'; RibbonAutoConfiguration.RibbonClassesConditions.IClientPresent @ConditionalOnClass上的nestedCondition找不到必需的类'com.netflix.client.IClient'

解决方法

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