Optimize configuration item key

[chickenlj]

No description provided.

[codecov-commenter]

Codecov Report

Merging #10006 (ea44888) into 3.0 (bce439e) will increase coverage by 0.06%.
The diff coverage is 80.00%.

@@             Coverage Diff              @@
##                3.0   #10006      +/-   ##
============================================
+ Coverage     65.69%   65.75%   +0.06%     
- Complexity      294      319      +25     
============================================
  Files          1215     1215              
  Lines         53040    53048       +8     
  Branches       8034     8037       +3     
============================================
+ Hits          34842    34883      +41     
+ Misses        14386    14362      -24     
+ Partials       3812     3803       -9     

Impacted Files	Coverage Δ
...egistry/client/migration/MigrationRuleHandler.java	75.43% <ø> (ø)
...registry/client/migration/model/MigrationRule.java	71.87% <80.00%> (-0.10%)	⬇️
.../remoting/transport/netty4/NettyServerHandler.java	62.79% <0.00%> (-9.31%)	⬇️
...ng/zookeeper/curator5/Curator5ZookeeperClient.java	69.56% <0.00%> (-1.94%)	⬇️
...ubbo/registry/client/ServiceDiscoveryRegistry.java	76.24% <0.00%> (-0.56%)	⬇️
...pache/dubbo/config/utils/SimpleReferenceCache.java	68.53% <0.00%> (-0.35%)	⬇️
...che/dubbo/metadata/AbstractServiceNameMapping.java	84.34% <0.00%> (-0.06%)	⬇️
...n/java/org/apache/dubbo/metadata/MetadataInfo.java	66.55% <0.00%> (ø)
...ubbo/config/spring/reference/ReferenceCreator.java	90.81% <0.00%> (+0.09%)	⬆️
...n/java/org/apache/dubbo/common/utils/NetUtils.java	69.35% <0.00%> (+0.32%)	⬆️
... and 16 more

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