optimize registry type

[leizhiyuan]

Motivation:

fixes #182
fixes #173

Modification:

Describe the idea and modifications you've done.

Result:

Fixes #.

If there is no issue then describe the changes introduced by this PR.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@0b21cef). Click here to learn what that means.
The diff coverage is 100%.

@@            Coverage Diff            @@
##             master     #183   +/-   ##
=========================================
  Coverage          ?   59.23%           
  Complexity        ?      457           
=========================================
  Files             ?       59           
  Lines             ?     1862           
  Branches          ?      325           
=========================================
  Hits              ?     1103           
  Misses            ?      547           
  Partials          ?      212

Impacted Files	Coverage Δ	Complexity Δ
...lipay/sofa/rpc/boot/config/ConsulConfigurator.java	64.1% <100%> (ø)	6 <1> (?)
.../alipay/sofa/rpc/boot/config/MeshConfigurator.java	100% <100%> (ø)	3 <1> (?)
...ay/sofa/rpc/boot/config/LocalFileConfigurator.java	80% <100%> (ø)	6 <1> (?)
...ay/sofa/rpc/boot/SofaBootRpcAutoConfiguration.java	95.83% <100%> (ø)	18 <0> (?)
...alipay/sofa/rpc/boot/config/NacosConfigurator.java	100% <100%> (ø)	3 <1> (?)
...ay/sofa/rpc/boot/config/ZookeeperConfigurator.java	100% <100%> (ø)	4 <1> (?)

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[ujjboy]

LGTM