 getPrice(){
        return price;
    }

    public void setPrice(double price){
        this.price = price;
    }

    public int getCountry(){
        return country;
    }

    public void setCountry(int country){
        this.country = country;
    }

}
</pre>



<pre class="prettyprint lang-java">
public class UserVO implements Serializable{

    private String userId; //用户id
    private String userName; //用户名
    private SimpleUser friend; //
    private SimpleUser[] friends; //好友
    p