京东秒杀之商品列表

1 在gitee上添加.yml文件

1.1 添加good-server.yml文件

yml 复制代码

server:
  port: 8084
spring:
  datasource:
    url: jdbc:mysql://localhost:3306/shop_goods?serverTimezone=GMT%2B8
    driverClassName: com.mysql.cj.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource
    username: root
    password: 123456
mybatis:
  configuration:
    default-fetch-size: 100
    default-statement-timeout: 3000
    map-underscore-to-camel-case: true

1.2 添加seckill-server.yml文件

yml 复制代码

server:
  port: 8085
spring:
  datasource:
    url: jdbc:mysql://localhost:3306/shop_seckill?serverTimezone=GMT%2B8
    driverClassName: com.mysql.cj.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource
    username: root
    password: 123456
mybatis:
  configuration:
    default-fetch-size: 100
    default-statement-timeout: 3000
    map-underscore-to-camel-case: true

2 创建启动类

2.1 创建商品服务启动类

java 复制代码

@SpringBootApplication
@EnableEurekaClient
public class GoodServerApp {
    public static void main(String[] args) {
        SpringApplication.run(GoodServerApp.class, args);
    }
}

2.2 创建秒杀启动类

java 复制代码

@SpringBootApplication
@EnableEurekaClient
public class SeckillServerApp {
    public static void main(String[] args) {
        SpringApplication.run(SeckillServerApp.class, args);
    }
}

3 编写前端商品页面

html 复制代码

<!DOCTYPE html>
<html lang="en">
<head>
    <title>商品列表</title>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <script type="text/javascript" src="/js/jquery.min.js"></script>
    <link rel="stylesheet" type="text/css" href="/bootstrap/css/bootstrap.min.css" /><!-- bootstrap -->
    <script type="text/javascript" src="/bootstrap/js/bootstrap.min.js"></script>
    <script type="text/javascript" src="/jquery-validation/jquery.validate.min.js"></script> <!-- jquery-validator -->
    <script type="text/javascript" src="/jquery-validation/localization/messages_zh.min.js"></script>
    <script type="text/javascript" src="/layer/layer.js"></script><!-- layer -->
    <script type="text/javascript" src="/js/md5.min.js"></script><!-- md5.js -->
    <script type="text/javascript" src="/js/common.js"></script><!-- common.js -->
</head>
<body>
<div class="panel panel-default">
    <div class="panel-heading">秒杀商品列表</div>
    <table class="table" id="goodlist">
        <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>
    </table>
</div>

<script type="text/javascript">
    String.prototype.format=function () {
        if(arguments.length==0){
            return this;
        }
        var obj=arguments[0];
        var s = this;

        for(var key in obj){
            s= s.replace(new RegExp("\\{\\{"+key+"\\}\\}","g"),obj[key]);
        }
        return s;
    };


    var template="<tr><td>{{goodName}}</td>" +
        "<td><img src='{{goodImg}}' width='100px' height='100px' /> </td>" +
        "<td>{{goodPrice}}</td>" +
        "<td>{{seckillPrice}}</td>" +
        "<td>{{stockCount}}</td>" +
        "<td> <a href='good_detail.html?seckillId={{id}}'>详情</a> </td></tr>";


    $(function () {
        $.ajax({
            url: "http://localhost:9000/seckill/seckillGood/query",
            type: "get",
            xhrFields: {withCredentials: true}, //启用cookie
            success:function (data) {
                if(data.code==200){
                    //填充表格中的数据
                    render(data.data);
                }else{
                    layer.msg(data.msg)
                }
            }
        });
    });


    function render(goodlist) {
        for(var i=0;i<goodlist.length;i++){
            $("#goodlist").append(template.format(goodlist[i]));
        }

    }
    
</script>
</body>
</html>

4 商品查询

由于在前端页面展示的信息来自不同的两张表，因此需要运用远程调用：

1. 在单表查询数据 t_seckill_good 数据秒杀的商品列表 SeckillGoodList
1. 获取 good_id 集合 ids $1,2$
1. 远程调用 good-server 传递参数 $1,2$ 在商品表中查询 t_goods 数据 GoodList

4.1 创建实体类

1 创建商品类

java 复制代码

@Data
public class Goods implements Serializable {

    private Long id;
    private String goodName;
    private String  goodTitle;
    private String  goodImg;
    private String goodDetail;
    private BigDecimal goodPrice;
    private Integer  goodStock;
}

2 创建秒杀类

java 复制代码

@Data
public class SeckillGoods implements Serializable {

    private Long id;
    private Long goodId;
    private BigDecimal seckillPrice;
    private Integer stockCount;
    //时间的问题后续得处理 ----
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")
    private Date startDate;
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")
    private Date endDate;
}