feat(SpringDemo): 添加订单相关实体类和 Mapper

- 新增 Orders 实体类，用于订单相关操作
- 添加 OrdersMapper 接口和对应的 XML 文件，实现订单数据的持久化
- 创建 OrdersService 接口和 OrdersServiceImpl 实现类，提供订单业务逻辑支持- 在 pom.xml 中添加 packaging标签，指定项目打包方式为 pom

SpringCloud/pom.xml

@@ -13,6 +13,7 @@
     <version>0.0.1-SNAPSHOT</version>
     <name>SpringCloud</name>
     <description>SpringCloud</description>
+    <packaging>pom</packaging>
     <url/>
     <licenses>
         <license/>

SpringDemo/src/main/java/cn/whaifree/springdemo/mybatis/domain/Orders.java

@@ -0,0 +1,111 @@
+package cn.whaifree.springdemo.mybatis.domain;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.util.Date;
+
+/**
+ *
+ * @TableName orders
+ */
+@TableName(value ="orders")
+@Data
+public class Orders implements Serializable {
+    /**
+     *
+     */
+    @TableId(type = IdType.AUTO)
+    private Integer id;
+
+    /**
+     * 订单号
+     */
+    private String orderNo;
+
+    /**
+     * 用户ID
+     */
+    private Integer userId;
+
+    /**
+     * 订单总金额
+     */
+    private BigDecimal totalAmount;
+
+    /**
+     * 订单状态: 0-未支付, 1-已支付
+     */
+    private Integer status;
+
+    /**
+     * 创建时间
+     */
+    private Date createTime;
+
+    /**
+     *
+     */
+    private Integer version;
+
+    @TableField(exist = false)
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    public boolean equals(Object that) {
+        if (this == that) {
+            return true;
+        }
+        if (that == null) {
+            return false;
+        }
+        if (getClass() != that.getClass()) {
+            return false;
+        }
+        Orders other = (Orders) that;
+        return (this.getId() == null ? other.getId() == null : this.getId().equals(other.getId()))
+            && (this.getOrderNo() == null ? other.getOrderNo() == null : this.getOrderNo().equals(other.getOrderNo()))
+            && (this.getUserId() == null ? other.getUserId() == null : this.getUserId().equals(other.getUserId()))
+            && (this.getTotalAmount() == null ? other.getTotalAmount() == null : this.getTotalAmount().equals(other.getTotalAmount()))
+            && (this.getStatus() == null ? other.getStatus() == null : this.getStatus().equals(other.getStatus()))
+            && (this.getCreateTime() == null ? other.getCreateTime() == null : this.getCreateTime().equals(other.getCreateTime()))
+            && (this.getVersion() == null ? other.getVersion() == null : this.getVersion().equals(other.getVersion()));
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((getId() == null) ? 0 : getId().hashCode());
+        result = prime * result + ((getOrderNo() == null) ? 0 : getOrderNo().hashCode());
+        result = prime * result + ((getUserId() == null) ? 0 : getUserId().hashCode());
+        result = prime * result + ((getTotalAmount() == null) ? 0 : getTotalAmount().hashCode());
+        result = prime * result + ((getStatus() == null) ? 0 : getStatus().hashCode());
+        result = prime * result + ((getCreateTime() == null) ? 0 : getCreateTime().hashCode());
+        result = prime * result + ((getVersion() == null) ? 0 : getVersion().hashCode());
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append(getClass().getSimpleName());
+        sb.append(" [");
+        sb.append("Hash = ").append(hashCode());
+        sb.append(", id=").append(id);
+        sb.append(", orderNo=").append(orderNo);
+        sb.append(", userId=").append(userId);
+        sb.append(", totalAmount=").append(totalAmount);
+        sb.append(", status=").append(status);
+        sb.append(", createTime=").append(createTime);
+        sb.append(", version=").append(version);
+        sb.append(", serialVersionUID=").append(serialVersionUID);
+        sb.append("]");
+        return sb.toString();
+    }
+}

SpringDemo/src/main/java/cn/whaifree/springdemo/mybatis/mapper/OrdersMapper.java

@@ -0,0 +1,26 @@
+package cn.whaifree.springdemo.mybatis.mapper;
+
+import cn.whaifree.springdemo.mybatis.domain.Orders;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+/**
+* @author wenhai
+* @description 针对表【orders】的数据库操作Mapper
+* @createDate 2024-11-01 12:45:47
+* @Entity generator.domain.Orders
+*/
+@Mapper
+public interface OrdersMapper extends BaseMapper<Orders> {
+
+    @Select("SELECT * FROM orders")
+    List<Orders> selectByExample();
+
+}
+
+
+
+

SpringDemo/src/main/java/cn/whaifree/springdemo/mybatis/service/OrdersService.java

@@ -0,0 +1,13 @@
+package cn.whaifree.springdemo.mybatis.service;
+
+import cn.whaifree.springdemo.mybatis.domain.Orders;
+import com.baomidou.mybatisplus.extension.service.IService;
+
+/**
+* @author wenhai
+* @description 针对表【orders】的数据库操作Service
+* @createDate 2024-11-01 12:45:47
+*/
+public interface OrdersService extends IService<Orders> {
+
+}

SpringDemo/src/main/java/cn/whaifree/springdemo/mybatis/service/impl/OrdersServiceImpl.java

@@ -0,0 +1,22 @@
+package cn.whaifree.springdemo.mybatis.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import cn.whaifree.springdemo.mybatis.domain.Orders;
+import cn.whaifree.springdemo.mybatis.service.OrdersService;
+import cn.whaifree.springdemo.mybatis.mapper.OrdersMapper;
+import org.springframework.stereotype.Service;
+
+/**
+* @author wenhai
+* @description 针对表【orders】的数据库操作Service实现
+* @createDate 2024-11-01 12:45:47
+*/
+@Service
+public class OrdersServiceImpl extends ServiceImpl<OrdersMapper, Orders>
+    implements OrdersService{
+
+}
+
+
+
+

SpringDemo/src/main/resources/mapper/OrdersMapper.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="cn.whaifree.springdemo.mybatis.mapper.OrdersMapper">
+
+    <resultMap id="BaseResultMap" type="cn.whaifree.springdemo.mybatis.domain.Orders">
+            <id property="id" column="id" jdbcType="INTEGER"/>
+            <result property="orderNo" column="order_no" jdbcType="VARCHAR"/>
+            <result property="userId" column="user_id" jdbcType="INTEGER"/>
+            <result property="totalAmount" column="total_amount" jdbcType="DECIMAL"/>
+            <result property="status" column="status" jdbcType="TINYINT"/>
+            <result property="createTime" column="create_time" jdbcType="TIMESTAMP"/>
+            <result property="version" column="version" jdbcType="INTEGER"/>
+    </resultMap>
+
+    <sql id="Base_Column_List">
+        id,order_no,user_id,
+        total_amount,status,create_time,
+        version
+    </sql>
+</mapper>