Resolves the jsonobject/jsonarray of nested list types into the original list problem.

Resolves an issue where the collection class member variables of an object become other types of objects during the conversion process.

public class A {

Private list<b> blist;

Public A (list<b> temp) {

blist = temp;

}

public void Setblist (list<b> temp) {

blist = temp;

}

　　

Public list<b> getblist () {

return blist;

}

}

public class mainclass{

public static void Main (String args[]) {

List <A> al = new Arraylist<a> ();

List <B> bl = new arraylist<b> ();

Bl.add (New B ());

Al.add (new A (BL));

Prevent the cycle of death

Jsonconfig jsonconfig = new Jsonconfig ();
Jsonconfig.setcycledetectionstrategy (cycledetectionstrategy.lenient);

Into the jsonarray of the ToString to the front desk.

String result = Jsonarray.fromobject (AL, Jsonconfig). toString ();

Front desk stringify array, upload to backstage and change back

Jsonconfig jsonconfig = new Jsonconfig ();
Jsonconfig.setcycledetectionstrategy (cycledetectionstrategy.lenient);
Jsonarray Jsonarray = jsonarray.fromobject (result);
list<a> al1= new arraylist<a> ();

It is not possible to use jsonarray.tocollection () directly in the collection class, and then set it to the parent class, otherwise it becomes a different object.
for (int i = 0; i < jsonarray.size (); i++) {
Jsonobject json = Jsonarray.getjsonobject (i);
Jsonarray blist = Json.getjsonarray ("blist");
@SuppressWarnings ("Unchecked")
List<b> blist= (list<b>) jsonarray.tocollection (blist, B.class);
A ob1 = (groupproperty) Jsonobject.tobean (JSON, a.class);
Ob1.setblist (blist);
Al1.add (OB1);

}

Al1 's right here.

System.out.println (AL1);

　　　　

}

}

Resolves the jsonobject/jsonarray of nested list types into the original list problem.