Use Gson to sort JSON all nodes by key value key

<Dependency>    <groupId>Commons-io</groupId>    <Artifactid>Commons-io</Artifactid>    <version>2.5</version></Dependency><Dependency>    <groupId>Com.google.code.gson</groupId>    <Artifactid>Gson</Artifactid>    <version>2.8.0</version></Dependency>

    Private StaticComparator<string>Getcomparator () {Comparator<String> C =NewComparator<string>()        {             Public intCompare (String O1, String O2) {returnO1.compareto (O2);        }        }; returnC; }     Public Static voidsort (jsonelement e) {if(E.isjsonnull ()) {return; }        if(E.isjsonprimitive ()) {return; }        if(E.isjsonarray ()) {Jsonarray a=E.getasjsonarray ();  for(Iterator<jsonelement> it =a.iterator (); It.hasnext ();)            {Sort (It.next ()); }            return; }        if(E.isjsonobject ()) {Map<string, Jsonelement> TM =NewTreemap<string, jsonelement>(Getcomparator ());  for(Entry<string, jsonelement>en:e.getasjsonobject (). EntrySet ())            {Tm.put (En.getkey (), En.getvalue ()); }             for(Entry<string, jsonelement>En:tm.entrySet ())                {e.getasjsonobject (). Remove (En.getkey ());                E.getasjsonobject (). Add (En.getkey (), En.getvalue ());            Sort (En.getvalue ()); }            return; }    }     Public Static voidMain (string[] args) {Try{String JSON= Fileutils.readfiletostring (NewFile ("C://test//test.txt"), "UTF-8"); Gson g=NewGsonbuilder (). setprettyprinting (). Create (); Jsonparser P=NewJsonparser (); Jsonelement e=P.parse (JSON);            Sort (e);        System.out.println (G.tojson (e)); }        Catch(Exception e) {e.printstacktrace (); }    }

Sort json all nodes with Gson by key value key