BaseBean.java

package com.tencent.model;

import java.io.Serializable;

import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;

@MappedSuperclass
public class BaseBean implements Serializable {

    private static final long serialVersionUID = -7056828891407093833L;
    protected int id;

    public BaseBean() {
    }

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }
}