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
contextPath = provider.getContextpath();
        }
        return Optional.ofNullable(contextPath);
    }
    protected Class getServiceClass(T ref) {
        return ref.getClass();
    }
    public void completeCompoundConfigs() {
        if (provider != null) {
            if (application == null) {
                setApplication(provider.getApplication());
            }
            if (module == null) {
                setModule(provider.getModule());
            }
            if (registries == null) {
                setRegistries(provider.getRegistries());
            }
            if (monitor == null) {
                setMonitor(provider.getMonitor());
            }
            if (protocols == null) {
                setProtocols(provider.getProtocols());
            }
            if (configCenter == null) {
                setConfigCenter(provider.getConfigCenter());
            }
        }
        if (module != null) {
            if (registries == null) {