Java秒杀系统（十）实现秒杀功能-商品列表页

商品表

CREATE TABLE `goods` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '商品ID',
  `goods_name` varchar(16) CHARACTER SET utf8mb4 DEFAULT NULL COMMENT '商品名称',
  `goods_title` varchar(64) CHARACTER SET utf8mb4 DEFAULT NULL COMMENT '商品标题',
  `goods_img` varchar(64) CHARACTER SET utf8mb4 DEFAULT NULL COMMENT '商品的图片',
  `goods_detail` longtext CHARACTER SET utf8mb4 DEFAULT NULL COMMENT '商品的详情介绍',
  `goods_price` decimal(10,2) DEFAULT 0.00 COMMENT '商品单价',
  `goods_stock` int(11) DEFAULT 0 COMMENT '商品库存',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of goods
-- ----------------------------
INSERT INTO `goods` VALUES ('1', '小米Mix2', '小米Mix2（黑科技十足）', '/img/小米Mix2.png', '小米Mix2s', '3499.00', '10');
INSERT INTO `goods` VALUES ('2', 'huawei mate10', 'Huawei华为', '/img/huawei.png', 'Huwei Mate10', '4800.00', '10');
INSERT INTO `goods` VALUES ('3', 'honor10', '荣耀10', '/img/荣耀10.png', 'Honor 10', '2799.00', '10');
INSERT INTO `goods` VALUES ('4', '三星s9', 'Sanxing S9', '/img/三星.png', 'sanxing S9', '6899.00', '10');
INSERT INTO `goods` VALUES ('5', 'iPhone X', 'iphoneX(全网通)', '/img/iPhoneX.png', 'iphoneX', '8848.00', '8');
INSERT INTO `goods` VALUES ('6', '小米8', '黑科技十足', '/img/小米8.png', '小米8', '3499.00', '10');

DROP TABLE IF EXISTS `goods`;

秒杀商品表

DROP TABLE IF EXISTS `miaosha_goods`;
CREATE TABLE `miaosha_goods` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '秒杀的商品表',
  `goods_id` bigint(20) DEFAULT NULL COMMENT '商品的ID',
  `miaosha_price` decimal(10,2) DEFAULT 0.00 COMMENT '秒杀价',
  `stock_count` int(11) DEFAULT NULL COMMENT '库存数量',
  `start_date` datetime DEFAULT NULL COMMENT '秒杀开始时间',
  `end_date` datetime DEFAULT NULL COMMENT '秒杀结束时间',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of miaosha_goods
-- ----------------------------
INSERT INTO `miaosha_goods` VALUES ('1', '1', '300.00', '6', '2018-05-26 11:33:59', '2018-05-26 11:34:08');
INSERT INTO `miaosha_goods` VALUES ('2', '2', '150.00', '5', '2018-05-25 11:34:32', '2018-07-19 11:34:40');
INSERT INTO `miaosha_goods` VALUES ('3', '3', '100.00', '10', '2018-06-14 10:24:04', '2018-07-19 10:24:21');
INSERT INTO `miaosha_goods` VALUES ('4', '4', '200.00', '6', '2018-05-25 10:24:42', '2018-07-19 10:24:47');
INSERT INTO `miaosha_goods` VALUES ('5', '5', '800.00', '5', '2018-05-25 11:11:42', '2018-06-15 11:11:50');
INSERT INTO `miaosha_goods` VALUES ('6', '6', '1.00', '10', '2018-05-31 09:15:13', '2018-06-30 09:15:18');

订单表

DROP TABLE IF EXISTS `order_info`;
CREATE TABLE `order_info` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `user_id` bigint(20) DEFAULT NULL COMMENT '用户',
  `goods_id` bigint(20) DEFAULT NULL COMMENT '商品ID',
  `delivery_addr_id` bigint(20) DEFAULT NULL COMMENT '收货地址ID',
  `goods_name` varchar(16) CHARACTER SET utf8mb4 DEFAULT NULL COMMENT '冗余过来的商品名称',
  `goods_count` int(11) DEFAULT 0 COMMENT '商品数量',
  `goods_price` decimal(10,2) DEFAULT 0.00 COMMENT '商品价格',
  `order_channel` tinyint(4) DEFAULT 0 COMMENT '1pc,2android,3ios',
  `status` tinyint(4) DEFAULT 0 COMMENT '订单状态，0新建来支付，1已经支付，2已经发货，3已经收货，4已退款，5已完成',
  `create_date` datetime DEFAULT NULL COMMENT '创建时间',
  `pay_date` datetime DEFAULT NULL COMMENT '支付时间',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=18 DEFAULT CHARSET=utf8;

秒杀订单表

DROP TABLE IF EXISTS `miaosha_order`;
CREATE TABLE `miaosha_order` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `user_id` bigint(20) DEFAULT NULL COMMENT '用户ID',
  `order_id` bigint(20) DEFAULT NULL COMMENT '订单ID',
  `goods_id` bigint(20) DEFAULT NULL COMMENT '商品ID',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=18 DEFAULT CHARSET=utf8;

创建domain对象

public class Goods {
	private Long id;
	private String goodsName;
	private String goodsTitle;
	private String goodsImg;
	private String goodsDetail;
	private Double goodsPrice;
	private Integer goodsStock;
	public Long getId() {
		return id;
	}
	public void setId(Long id) {
		this.id = id;
	}
	public String getGoodsName() {
		return goodsName;
	}
	public void setGoodsName(String goodsName) {
		this.goodsName = goodsName;
	}
	public String getGoodsTitle() {
		return goodsTitle;
	}
	public void setGoodsTitle(String goodsTitle) {
		this.goodsTitle = goodsTitle;
	}
	public String getGoodsImg() {
		return goodsImg;
	}
	public void setGoodsImg(String goodsImg) {
		this.goodsImg = goodsImg;
	}
	public String getGoodsDetail() {
		return goodsDetail;
	}
	public void setGoodsDetail(String goodsDetail) {
		this.goodsDetail = goodsDetail;
	}
	public Double getGoodsPrice() {
		return goodsPrice;
	}
	public void setGoodsPrice(Double goodsPrice) {
		this.goodsPrice = goodsPrice;
	}
	public Integer getGoodsStock() {
		return goodsStock;
	}
	public void setGoodsStock(Integer goodsStock) {
		this.goodsStock = goodsStock;
	}

}

package cn.tedu.miaosha.domain;

import java.util.Date;

public class MiaoshaGoods {
	private Long id;
	private Long goodsId;
	private Integer stockCount;
	private Date startDate;
	private Date endDate;
	public Long getId() {
		return id;
	}
	public void setId(Long id) {
		this.id = id;
	}
	public Long getGoodsId() {
		return goodsId;
	}
	public void setGoodsId(Long goodsId) {
		this.goodsId = goodsId;
	}
	public Integer getStockCount() {
		return stockCount;
	}
	public void setStockCount(Integer stockCount) {
		this.stockCount = stockCount;
	}
	public Date getStartDate() {
		return startDate;
	}
	public void setStartDate(Date startDate) {
		this.startDate = startDate;
	}
	public Date getEndDate() {
		return endDate;
	}
	public void setEndDate(Date endDate) {
		this.endDate = endDate;
	}

}

package cn.tedu.miaosha.domain;

public class MiaoshaOrder {
	private Long id;
	private Long userId;
	private Long  orderId;
	private Long goodsId;
	public Long getId() {
		return id;
	}
	public void setId(Long id) {
		this.id = id;
	}
	public Long getUserId() {
		return userId;
	}
	public void setUserId(Long userId) {
		this.userId = userId;
	}
	public Long getOrderId() {
		return orderId;
	}
	public void setOrderId(Long orderId) {
		this.orderId = orderId;
	}
	public Long getGoodsId() {
		return goodsId;
	}
	public void setGoodsId(Long goodsId) {
		this.goodsId = goodsId;
	}
}

package cn.tedu.miaosha.domain;

import java.util.Date;

public class MiaoshaUser {
	private Long id;
	private String nickname;
	private String password;
	private String salt;
	private String head;
	private Date registerDate;
	private Date lastLoginDate;
	private Integer loginCount;
	public Long getId() {
		return id;
	}
	public void setId(Long id) {
		this.id = id;
	}
	public String getNickname() {
		return nickname;
	}
	public void setNickname(String nickname) {
		this.nickname = nickname;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public String getSalt() {
		return salt;
	}
	public void setSalt(String salt) {
		this.salt = salt;
	}
	public String getHead() {
		return head;
	}
	public void setHead(String head) {
		this.head = head;
	}
	public Date getRegisterDate() {
		return registerDate;
	}
	public void setRegisterDate(Date registerDate) {
		this.registerDate = registerDate;
	}
	public Date getLastLoginDate() {
		return lastLoginDate;
	}
	public void setLastLoginDate(Date lastLoginDate) {
		this.lastLoginDate = lastLoginDate;
	}
	public Integer getLoginCount() {
		return loginCount;
	}
	public void setLoginCount(Integer loginCount) {
		this.loginCount = loginCount;
	}
}

package cn.tedu.miaosha.domain;

import java.util.Date;

public class OrderInfo {
	private Long id;
	private Long userId;
	private Long goodsId;
	private Long  deliveryAddrId;
	private String goodsName;
	private Integer goodsCount;
	private Double goodsPrice;
	private Integer orderChannel;
	private Integer status;
	private Date createDate;
	private Date payDate;
	public Long getId() {
		return id;
	}
	public void setId(Long id) {
		this.id = id;
	}
	public Long getUserId() {
		return userId;
	}
	public void setUserId(Long userId) {
		this.userId = userId;
	}
	public Long getGoodsId() {
		return goodsId;
	}
	public void setGoodsId(Long goodsId) {
		this.goodsId = goodsId;
	}
	public Long getDeliveryAddrId() {
		return deliveryAddrId;
	}
	public void setDeliveryAddrId(Long deliveryAddrId) {
		this.deliveryAddrId = deliveryAddrId;
	}
	public String getGoodsName() {
		return goodsName;
	}
	public void setGoodsName(String goodsName) {
		this.goodsName = goodsName;
	}
	public Integer getGoodsCount() {
		return goodsCount;
	}
	public void setGoodsCount(Integer goodsCount) {
		this.goodsCount = goodsCount;
	}
	public Double getGoodsPrice() {
		return goodsPrice;
	}
	public void setGoodsPrice(Double goodsPrice) {
		this.goodsPrice = goodsPrice;
	}
	public Integer getOrderChannel() {
		return orderChannel;
	}
	public void setOrderChannel(Integer orderChannel) {
		this.orderChannel = orderChannel;
	}
	public Integer getStatus() {
		return status;
	}
	public void setStatus(Integer status) {
		this.status = status;
	}
	public Date getCreateDate() {
		return createDate;
	}
	public void setCreateDate(Date createDate) {
		this.createDate = createDate;
	}
	public Date getPayDate() {
		return payDate;
	}
	public void setPayDate(Date payDate) {
		this.payDate = payDate;
	}
}

package cn.tedu.miaosha.dao;

import java.util.List;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;

import cn.tedu.miaosha.domain.MiaoshaGoods;
import cn.tedu.miaosha.vo.GoodsVo;

@Mapper
public interface GoodsDao {
	
	@Select("select g.*,mg.stock_count, mg.start_date, mg.end_date,mg.miaosha_price from miaosha_goods mg left join goods g on mg.goods_id = g.id")
	public List<GoodsVo> listGoodsVo();

	@Select("select g.*,mg.stock_count, mg.start_date, mg.end_date,mg.miaosha_price from miaosha_goods mg left join goods g on mg.goods_id = g.id where g.id = #{goodsId}")
	public GoodsVo getGoodsVoByGoodsId(@Param("goodsId")long goodsId);

	@Update("update miaosha_goods set stock_count = stock_count - 1 where goods_id = #{goodsId}")
	public int reduceStock(MiaoshaGoods g);
	
}

package cn.tedu.miaosha.service;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import cn.tedu.miaosha.dao.GoodsDao;
import cn.tedu.miaosha.domain.MiaoshaGoods;
import cn.tedu.miaosha.vo.GoodsVo;

@Service
public class GoodsService {
	
	@Autowired
	GoodsDao goodsDao;
	
	public List<GoodsVo> listGoodsVo(){
		return goodsDao.listGoodsVo();
	}

	public GoodsVo getGoodsVoByGoodsId(long goodsId) {
		return goodsDao.getGoodsVoByGoodsId(goodsId);
	}

	public void reduceStock(GoodsVo goods) {
		MiaoshaGoods g = new MiaoshaGoods();
		g.setGoodsId(goods.getId());
		goodsDao.reduceStock(g);
	}
	
	
	
}

添加商品页面

<div class="panel panel-default" style="height:100%;background-color:rgba(222,222,222,0.8)">
  <div class="panel-heading" align="center" style="font-size:30px;color:black	;font-weight: bold;font-family:宋体;background-color:#E3E3E3">秒杀商品列表</div>
  <table class="table" id="goodslist">
  	<tr><td>商品名称</td><td>商品图片</td><td>商品原价</td><td>秒杀价</td><td>库存数量</td><td>详情</td></tr>
  	<tr  th:each="goods,goodsStat : ${goodsList}">  
                <td th:text="${goods.goodsName}"></td>  
                <td ><img th:src="@{${goods.goodsImg}}" width="100" height="100" /></td>  
                <td th:text="${goods.goodsPrice}"></td>  
                <td th:text="${goods.miaoshaPrice}"></td>  
                <td th:text="${goods.stockCount}"></td>
                <td><a th:href="'/goods/to_detail/'+${goods.id}">详情</a></td>  
     </tr>  
  </table>
</div>

img图片