1 前兩天我們學習了user用戶模塊和圖書的分類模塊，接下來我們學習圖書模塊

圖書模塊的功能主要是下面的功能：

2 接下來我們創建對應的包

我們來看看對應的數據庫表t_book

CREATE TABLE `t_book` (
`bid` char(32) NOT NULL,
`bname` varchar(200) default NULL,
`author` varchar(50) default NULL,
`price` decimal(8,2) default NULL,
`currPrice` decimal(8,2) default NULL,
`discount` decimal(3,1) default NULL,
`press` varchar(100) default NULL,
`publishtime` char(10) default NULL,
`edition` int(11) default NULL,
`pageNum` int(11) default NULL,
`wordNum` int(11) default NULL,
`printtime` char(10) default NULL,
`booksize` int(11) default NULL,
`paper` varchar(50) default NULL,
`cid` char(32) default NULL,
`image_w` varchar(100) default NULL,
`image_b` varchar(100) default NULL,
`orderBy` int(11) NOT NULL auto_increment,
PRIMARY KEY (`bid`),
KEY `orderBy` (`orderBy`),
KEY `FK_t_book_t_category` (`cid`),
CONSTRAINT `FK_t_book_t_category` FOREIGN KEY (`cid`) REFERENCES `t_category` (`cid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

book表中定義了一個外鍵cid，該值必須來自與t_category的cid，表示當前的書籍屬於哪個分類。

有個數據庫表的字段，我們就可以定義book類的實體類了。

package com.weiyuan.goods.book.domain;

import com.weiyuan.goods.category.domain.Category;

public class Book {
private String bid;//書的主鍵
private String bname;//書的名字
private String author;//書的作者
private Double price;//書的出廠定價
 

private Double currPrice;//書的當前的賣價
private Double discount ;//書的折扣
private String press ;//書    的出版社
private String publishtime ;//書的出廠時間
private int edition;//書的印刷版本次數、
private int pageNum;//書的頁數
private int wordNum;//書的字數統計
private String printtime;//書的印刷時間
private int booksize;//書是16開、還是8開
private String paper;//書的紙質材料
 

private Category category;//書屬於圖書的那個分類
private String image_w;//書的大圖路徑
private String image_b;//書的小圖路徑
public String getBid() {
    return bid;
}
public void setBid(String bid) {
    this.bid = bid;
}
public String getBname() {
    return bname;
}
public void setBname(String bname) {
    this.bname = bname;
}
public String getAuthor() {
    return author;
}
public void setAuthor(String author) {
    this.author = author;
}
public Double getPrice() {
    return price;
}
public void setPrice(Double price) {
    this.price = price;
}
public Double getCurrPrice() {
    return currPrice;
}
public void setCurrPrice(Double currPrice) {
    this.currPrice = currPrice;
}
public Double getDiscount() {
    return discount;
}
public void setDiscount(Double discount) {
    this.discount = discount;
}
public String getPress() {
    return press;
}
public void setPress(String press) {
    this.press = press;
}
public String getPublishtime() {
    return publishtime;
}
public void setPublishtime(String publishtime) {
    this.publishtime = publishtime;
}
public int getEdition() {
    return edition;
}
public void setEdition(int edition) {
    this.edition = edition;
}
public int getPageNum() {
    return pageNum;
}
public void setPageNum(int pageNum) {
    this.pageNum = pageNum;
}
public int getWordNum() {
    return wordNum;
}
public void setWordNum(int wordNum) {
    this.wordNum = wordNum;
}
public String getPrinttime() {
    return printtime;
}
public void setPrinttime(String printtime) {
    this.printtime = printtime;
}
public int getBooksize() {
    return booksize;
}
public void setBooksize(int booksize) {
    this.booksize = booksize;
}
public String getPaper() {
    return paper;
}
public void setPaper(String paper) {
    this.paper = paper;
}
public Category getCategory() {
    return category;
}
public void setCategory(Category category) {
    this.category = category;
}
public String getImage_w() {
    return image_w;
}
public void setImage_w(String image_w) {
    this.image_w = image_w;
}
public String getImage_b() {
    return image_b;
}
public void setImage_b(String image_b) {
    this.image_b = image_b;
}






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JavaWeb網上圖書商城完整項目--day03-1.圖書模塊功能介紹及相關類創建