SpringBoot构建电商基础秒杀项目总结-商品模块开发
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商品模块开发
一、商品创建
1、构建数据库：
SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for item
-- ----------------------------
DROP TABLE IF EXISTS `item`;
CREATE TABLE `item` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`title` varchar(64) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL DEFAULT '',
`price` double(10,0) NOT NULL DEFAULT '0',
`description` varchar(500) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL DEFAULT '',
`sales` int(11) NOT NULL DEFAULT '0',
`img_url` varchar(500) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL DEFAULT '',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
-- ----------------------------
-- Table structure for item_stock
-- ----------------------------
DROP TABLE IF EXISTS `item_stock`;
CREATE TABLE `item_stock` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`stock` int(11) NOT NULL DEFAULT '0' COMMENT '库存',
`item_id` int(11) NOT NULL DEFAULT '0',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=9 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
2、修改pom.xml文件
<configuration>
<!--允许移动生成的文件-->
<verbose>true</verbose>
<!--允许自动覆盖文件（生产环境中千万不要这样做）-->
<overwrite>false</overwrite>
<configurationFile>
src/main/resources/mybatis-generator.xml
</configurationFile>
</configuration>
修改mybatis-generator配置文件
<table tableName="item" domainObjectName="ItemDO"
enableCountByExample="false"
enableUpdateByExample="false"
enableDeleteByExample="false"
enableSelectByExample="false"
selectByExampleQueryId="false"></table>
<table tableName="item_stock" domainObjectName="ItemStockDO"
enableCountByExample="false"
enableUpdateByExample="false"
enableDeleteByExample="false"
enableSelectByExample="false"
selectByExampleQueryId="false"></table>
重新运行mybatis-generator
3、修改ItemDOMapper.xml文件
<insert id="insert" parameterType="com.miaoshaproject.dataobject.ItemDO" useGeneratedKeys="true" keyProperty="id">
<insert id="insertSelective" parameterType="com.miaoshaproject.dataobject.ItemDO" useGeneratedKeys="true" keyProperty="id">
4、修改ItemStockDOMapper.xml文件
<insert id="insertSelective" parameterType="com.miaoshaproject.dataobject.ItemStockDO" useGeneratedKeys="true" keyProperty="id">
5、前端的createitem.html
<html>
<head>
<meta charset="UTF-8">
<link href="static/assets/global/plugins/bootstrap/css/bootstrap.min.css" rel="stylesheet" type="text/css"/>
<link href="static/assets/global/plugins/css/component.css" rel="stylesheet" type="text/css"/>
<link href="static/assets/admin/pages/css/login.css" rel="stylesheet" type="text/css"/>
<script src="static/assets/global/plugins/jquery-1.11.0.min.js" type="text/javascript"></script>
<title>Title</title>
</head>
<body class="login">
<div class="content">
<h3 class="form-title">创建商品</h3>
<div class="form-group">
<label class="control-label">商品名</label>
<div>
<input class="form-control" type="text" name="title" id="title">
</div>
</div>
<div class="form-group">
<label class="control-label">商品描述</label>
<div>
<input class="form-control" type="text" name="description" id="description">
</div>
</div>
<div class="form-group">
<label class="control-label">商品价格</label>
<div>
<input class="form-control" type="text" name="price" id="price">
</div>
</div>
<div class="form-group">
<label class="control-label">商品图片</label>
<div>
<input class="form-control" type="text" name="imgUrl" id="imgUrl">
</div>
</div>
<div class="form-group">
<label class="control-label">库存</label>
<div>
<input class="form-control" type="text" name="stock" id="stock">
</div>
</div>
<div class="form-actions">
<button class="btn blue" id="create" type="submit">
提交创建
</button>
</div>
</div>
</body>
<script>
jQuery(document).ready(function () {
//绑定otp的click事件用于向后端发送获取手机验证码的请求
$("#create").on("click",function () {
var title = $("#title").val();
var price = $("#price").val();
var stock = $("#stock").val();
var description = $("#description").val();
var imgUrl = $("#imgUrl").val();
if (title == null || title == "") {
alert("商品名不能为空");
return false;
}
if (price == null || price == "") {
alert("商品价格不能为空");
return false;
}
if (stock == null || stock == "") {
alert("商品库存不能为空");
return false;
}
if (description == null || description == "") {
alert("商品描述不能为空");
return false;
}
if (imgUrl == null || imgUrl == "") {
alert("商品图片不能为空");
return false;
}
//映射到后端@RequestMapping(value = "/register", method = {RequestMethod.POST}, consumes = {CONTENT_TYPE_FORMED})
$.ajax({
type:"POST",
contentType:"application/x-www-form-urlencoded",
url:"http://localhost:8090/item/create",
data:{
"title": title,
"price": price,
"stock": stock,
"description": description,
"imgUrl": imgUrl,
"name":name
},
//允许跨域请求
xhrFields:{withCredentials:true},
success:function (data) {
if (data.status=="success") {
alert("创建成功");
}else {
alert("创建失败，原因为" + data.data.errMsg);
}
},
error:function (data) {
alert("创建失败，原因为"+data.responseText);
}
});
return false;
});
});
</script>
</html>
二、后端商品代码
1、ItemStockDOMapper.xml文件添加语句：
<select id="selectByItemId" parameterType="java.lang.Integer" resultMap="BaseResultMap">
select
<include refid="Base_Column_List" />
from item_stock
where item_id = #{item_id,jdbcType=INTEGER}
</select>
ItemStockDOMapper.java
ItemStockDO selectByItemId(Integer itemId);
2、ItemService接口
public interface ItemService {
//创建商品
ItemModel createItem(ItemModel itemModel);
//商品列表浏览
List<ItemModel> listItem();
//商品详情浏览
ItemModel getItemById(Integer id);
}
3、ItemServiceImpl.java实现
@Service
public class ItemServiceImpl implements ItemService {
@Autowired
private ValidatorImpl validator;
@Autowired
private ItemDOMapper itemDOMapper;
@Autowired
private ItemStockDOMapper itemStockDOMapper;
private ItemDO convertItemDOFromItemModel(ItemModel itemModel) {
if (itemModel == null) {
return null;
}
ItemDO itemDO = new ItemDO();
BeanUtils.copyProperties(itemModel, itemDO);
itemDO.setPrice(itemModel.getPrice().doubleValue());//视频里有
return itemDO;
}
private ItemStockDO convertItemStockDOFromItemModel(ItemModel itemModel) {
if (itemModel == null) {
return null;
}
ItemStockDO itemStockDO = new ItemStockDO();
itemStockDO.setItemId(itemModel.getId());
itemStockDO.setStock(itemModel.getStock());
return itemStockDO;
}
@Override
@Transactional
public ItemModel createItem(ItemModel itemModel) throws BusinessException {
//校验入参
ValidationResult result = validator.validate(itemModel);
if (result.isHasErrors()){
throw new BusinessException(EmBusinessError.PARAMETER_VALIDATION_ERROR,result.getErrMsg());
}
//转化itemmodel->dataobject
ItemDO itemDO = this.convertItemDOFromItemModel(itemModel);
//写入数据库
itemDOMapper.insertSelective(itemDO);
itemModel.setId(itemDO.getId());
ItemStockDO itemStockDO = this.convertItemStockDOFromItemModel(itemModel);
itemStockDOMapper.insertSelective(itemStockDO);
//返回创建完成的对象
return this.getItemById(itemModel.getId());
}
@Override
public List<ItemModel> listItem() {
return null;
}
@Override
public ItemModel getItemById(Integer 以上是关于SpringBoot构建电商基础秒杀项目总结-商品模块开发的主要内容，如果未能解决你的问题，请参考以下文章