ShowSql might be better when debugging to execute the demo to observe…

[comment-face]

… the data.

issues #158

Ⅰ. Describe what this PR did

Ⅱ. Does this pull request fix one issue?

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[codecov-io]

Codecov Report

Merging #164 into develop will decrease coverage by <.01%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           develop    #164      +/-   ##
==========================================
- Coverage     4.63%   4.63%   -0.01%     
==========================================
  Files          184     184              
  Lines         6746    6752       +6     
  Branches       917     917              
==========================================
  Hits           313     313              
- Misses        6415    6421       +6     
  Partials        18      18

Impacted Files	Coverage Δ
...alibaba/fescar/tm/dubbo/impl/OrderServiceImpl.java	0% <0%> (ø)	⬆️
...ibaba/fescar/tm/dubbo/impl/StorageServiceImpl.java	0% <0%> (ø)	⬆️
...ibaba/fescar/tm/dubbo/impl/AccountServiceImpl.java	0% <0%> (ø)	⬆️

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