后端数据通过request发送到前端JSP页面上，为什么没有数据呢

public void listTingcheweiScalar(){
     Session session = factory.openSession();
     Transaction tx = null;
     try{
     //开启事务
        tx = session.beginTransaction();
        //进行查询
        String sql = "SELECT sum(bb) FROM Tingchewei where aa = :tingchewei_aa";
        SQLQuery query = session.createSQLQuery(sql);
        String sql2 = "SELECT name FROM TeamA";
        SQLQuery query2 = session.createSQLQuery(sql2);
        query2.setResultTransformer(Criteria.ROOT_ENTITY);
        //结果存放到list
        List results = query2.list();
        System.out.println(results);
        String[] str=new String[results.size()];
        int i=0;
        for(Object obj:results){ 
        str[i++]=obj.toString();
        }
        List