public class UserVO implements Serializable{

    private String userId; //用户id
    private String userName; //用户名
    private SimpleUser[] friends; //好友
    private BookVO[] readBooks; //阅读图书
    private boolean isFollow; //是否关注

    @JSONField(name="userId")
    public String getUserId(){
        return userId;
    }

    @JSONField(name="userId")
    public void setUserId(String userId){
        this.userId = userId;
    }

    @JSONField(name="userName")
    public String getUserName(){
        return userName;
    }

    @JSONField(name="userName")
    public void setUserName(String userName){
        this.userName = userName;
    }

    @JSONField(name="friends")
    public SimpleUser[] getFriends(){
        return friends;
    }

    @JSONField(name="friends")
    public void setFriends(SimpleUser[] friends){
        this.friends = friends;
    }

    @JSONField(name="readBooks")
    public BookVO[] getReadBooks(){
        return readBooks;
    }

    @JSONField(name="readBooks")
    public void setReadBooks(BookVO[] readBooks){
        this.readBooks = readBooks;
    }

    @JSONField(name="isFollow")
    public boolean getIsFollow(){
        return isFollow;
    }

    @JSONField(name="isFollow")
    public void setIsFollow(boolean isFollow){
        this.isFollow = isFollow;
    }

}

public class SimpleUser implements Serializable{

    private String userId; //用户id
    private String userName; //用户名

    @JSONField(name="userId")
    public String getUserId(){
        return userId;
    }

    @JSONField(name="userId")
    public void setUserId(String userId){
        this.userId = userId;
    }

    @JSONField(name="userName")
    public String getUserName(){
        return userName;
    }

    @JSONField(name="userName")
    public void setUserName(String userName){
        this.userName = userName;
    }

}

public class BookVO implements Serializable{

    private long bookId; //图书id
    private String bookName; //图书名称

    @JSONField(name="bookId")
    public long getBookId(){
        return bookId;
    }

    @JSONField(name="bookId")
    public void setBookId(long bookId){
        this.bookId = bookId;
    }

    @JSONField(name="bookName")
    public String getBookName(){
        return bookName;
    }

    @JSONField(name="bookName")
    public void setBookName(String bookName){
        this.bookName = bookName;
    }

}