【enhance】Optimize plugins

[provenceee]

What type of PR is this?

/enhance

Which issue(s) this PR fixes:

Fixes #1053

Use case description: n/a

Does this PR introduce a user-facing change?

No

Additional documentation e.g., usage docs, etc.:

No

[codecov]

Codecov Report

Base: 46.00% // Head: 45.56% // Decreases project coverage by -0.44% ⚠️

Coverage data is based on head (c840cb3) compared to base (df1666f).
Patch coverage: 84.88% of modified lines in pull request are covered.

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #1054      +/-   ##
=============================================
- Coverage      46.00%   45.56%   -0.45%     
+ Complexity      2916     2907       -9     
=============================================
  Files            669      669              
  Lines          14799    14837      +38     
  Branches        1661     1667       +6     
=============================================
- Hits            6809     6761      -48     
- Misses          7133     7228      +95     
+ Partials         857      848       -9     

Flag	Coverage Δ
unittests	45.56% <84.88%> (-0.45%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...er/dubbo/interceptor/ContextFilterInterceptor.java	84.21% <33.33%> (-9.91%)	⬇️
...er/spring/interceptor/RouteHandlerInterceptor.java	73.91% <33.33%> (+73.91%)	⬆️
...pring/interceptor/BaseLoadBalancerInterceptor.java	80.76% <50.00%> (+0.37%)	⬆️
...r/spring/interceptor/HystrixActionInterceptor.java	54.54% <66.66%> (-1.02%)	⬇️
...er/dubbo/service/AbstractDirectoryServiceImpl.java	88.88% <75.00%> (-1.92%)	⬇️
...m/huaweicloud/sermant/core/utils/ReflectUtils.java	69.87% <81.25%> (-0.54%)	⬇️
...eicloud/sermant/router/config/utils/RuleUtils.java	56.81% <81.81%> (+1.53%)	⬆️
.../flowcontrol/res4j/chain/AbstractChainHandler.java	100.00% <100.00%> (ø)
...wei/flowcontrol/res4j/chain/HandlerChainEntry.java	100.00% <100.00%> (ø)
.../sermant/router/dubbo/utils/DubboReflectUtils.java	91.30% <100.00%> (ø)
... and 22 more

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[robotLJW]

/lgtm