public class ApiResult implements Serializable{

    private int code; //
    private String errMsg; //
    private BookVO data; //

    public int getCode(){
        return code;
    }

    public void setCode(int code){
        this.code = code;
    }

    public String getErrMsg(){
        return errMsg;
    }

    public void setErrMsg(String errMsg){
        this.errMsg = errMsg;
    }

    public BookVO getData(){
        return data;
    }

    public void setData(BookVO data){
        this.data = data;
    }

}

public class BookVO implements Serializable{

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

    public long getBookId(){
        return bookId;
    }

    public void setBookId(long bookId){
        this.bookId = bookId;
    }

    public String getBookName(){
        return bookName;
    }

    public void setBookName(String bookName){
        this.bookName = bookName;
    }

}