在properties里面配置多个
dubbo.registry.address=xxxxxx
dubbo.registry.aaa.address=xxxxxx
在xml里面配置
<dubbo:reference id="xx" interface="xxxx" version="1.0.0" registry="aaa"/>
就会报错 Too much registries found
实际上配置的dubbo.registry.aaa.address=xxxxxx 并不能根据aaa来匹配
![image](https://user-images.githubusercontent.com/54841788/68372350-9d4e9700-017b-11ea-95c9-425b66cce6fe.png)

org.apache.dubbo.config.AbstractInterfaceConfig.convertRegistryIdsToRegistries()
if (((List)tmpRegistries).size() > ids.length) {
                throw new IllegalStateException("Too much registries found, the registries assigned to this service are :" + this.registryIds + ", but got " + ((List)tmpRegistries).size() + " registries!");
            }
是不是应该需要在 tmpRegistries 里面根据 id 取对应的 Registries
protected String stub;
    /**
     * Service monitor
     */
    protected MonitorConfig monitor;
    /**
     * Strategies for generating dynamic agents，there are two strategies can be choosed: jdk and javassist
     */
    protected String proxy;
    /**
     * Cluster type
     */
    protected String cluster;
    /**
     * The {@code Filter} when the provider side exposed a service or the customer side references a remote service used,
     * if there are more than one, you can use commas to separate them
     */
    protected String filter;
    /**
     * The Listener when the provider side exposes a service or the customer side references a remote service used
     * if there are more than one, you can use commas to separate them
     */
    protected String listener;
    /**
     * The owner of the service providers
     */
    protected String owner;
    /**
     * Connection limits, 0 means shared connection, otherwise it defines the connections delegated to the current service
     */