add query function for portal server config page

[nobodyiam]

No description provided.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@c61a80a). Click here to learn what that means.
The diff coverage is 0%.

@@            Coverage Diff            @@
##             master    #1357   +/-   ##
=========================================
  Coverage          ?   48.97%           
  Complexity        ?     1779           
=========================================
  Files             ?      372           
  Lines             ?    10645           
  Branches          ?     1105           
=========================================
  Hits              ?     5213           
  Misses            ?     5052           
  Partials          ?      380

Impacted Files	Coverage Δ	Complexity Δ
...ollo/portal/controller/ServerConfigController.java	7.69% <0%> (ø)	1 <0> (?)

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