Ribbon的异步EnableRule阻止了渲染

可以通过将Ribbon的异步EnableRule更改为同步来解决渲染被阻止的问题。具体代码如下：

@Configuration public class RibbonConfig {

@Autowired
IClientConfig config;

@Bean
public IRule ribbonRule(IClientConfig config) {
    return new AvailabilityFilteringRule();
}

@Bean
public IPing ribbonPing(IClientConfig config) {
    return new PingUrl();
}

@Bean
public ServerList<Server> ribbonServerList(IClientConfig config) {
    return new ConfigurationBasedServerList();
}

@Bean
@Primary
public AsyncLoadBalancingClient asyncClient() {
    final RibbonLoadBalancerContext context = new RibbonLoadBalancerContext(
            null,                    // config
            null,                    // serverList
            null,                    // ping
            null,                    // serverListFilter
            new LoadBalancerStats(), // loadBalancerStats
            "asyncClient"            // clientName
    );
    return FeignLoadBalancer.asyncBuilder(new AsyncClient.Default()).withClientOptions(Options.DEFAULT)
            .withLoadBalancer(new LoadBalancerFeignClient(context, new AvailabilityFilteringRule()))
            .build();
}

@Bean
public Feign.Builder feignBuilder() {
    return Feign.builder()
            .client(asyncClient());
}

}