如何迭代列表 <ClassUsingEntityAnnotationOfSpring> ？

Question

I am trying to iterate a list of (Users) and I am receiving this error:

 java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to br.com.meupacote.model.Usuario at 

Users is a class with @Entity annotattion. It's a table of my database.

I trying to interate this 2 forms:

 List<Deg> lista = new ArrayList<Deg>(); degV.forEach(d -> { Deg dgust = Degustacao.builder().codProduto(d.getId().getCodProduto()) .dataInicio(d.getDtaInicio()) .dataFim(d.getDtaFim()).build(); lista.add(dgust); }); for (Usuario d : degV) { Deg dgust = Degustacao.builder().codProduto(d.getId().getCodProduto()) .dataInicio(d.getDtaInicio()) .dataFim(d.getDtaFim()).build(); lista.add(dgust); } 

Sorry for my english.

Thanks in advance.

Answer 1

The problem is that I was not returning a Usuario List in the method that accessed my table. Since u was only selecting a few columns, I was returning an object list, so the cast error. I solved the problem by returning all the fields of the tables and selecting only the ones I wanted during the iteration to build the Deg obj.