public static void main(String[] args) {

        List<Fpxx> list = ListUtils.intersection(getFpList1(), getFpList2());

        for(Fpxx fp:list){

            System.out.println(fp);

        }

        System.out.println("size:"+list.size());

    }

    public static List<Fpxx> getFpList1() {

        List<Fpxx> list = new ArrayList<Fpxx>();

        for(int i=100000;i<200000;i++){

            Fpxx fp = new Fpxx();

            fp.fpdm = "0223678";

            fp.fphm = "3"+i;

            list.add(fp);

        }

        return list;

    }

    public static List<Fpxx> getFpList2() {

        List<Fpxx> list = new ArrayList<Fpxx>();

        for(int i=199900;i<199910;i++){

            Fpxx fp = new Fpxx();

            fp.fpdm = "0223678";

            fp.fphm = "3"+i;

            list.add(fp);

        }

        return list;

    }

}

class Fpxx {

    public String fpdm;

    public String fphm;

    @Override

    public int hashCode() {

        int hash = 3;

        return hash;

    }

    @Override

    public boolean equals(Object obj) {

        if (obj == null) {

            return false;

        }

        if (getClass() != obj.getClass()) {

            return false;

        }

        final Fpxx other = (Fpxx) obj;

        if ((this.fpdm == null) ? (other.fpdm != null) : !this.fpdm.equals(other.fpdm)) {

            return false;

        }

        if ((this.fphm == null) ? (other.fphm != null) : !this.fphm.equals(other.fphm)) {

            return false;

        }

        return true;

    }

    @Override

    public String toString() {

        return "Fpxx{" + "fpdm=" + fpdm + ", fphm=" + fphm + '}';

    }