创建OrderModel和数据表，并使用mybatis-generator生成Mappder文件

src/main/java/com/cxyxiaomo/flashsale/dao/OrderDOMapper.java

@@ -0,0 +1,53 @@
+package com.cxyxiaomo.flashsale.dao;
+
+import com.cxyxiaomo.flashsale.dataobject.OrderDO;
+
+public interface OrderDOMapper {
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method corresponds to the database table order_info
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    int deleteByPrimaryKey(String id);
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method corresponds to the database table order_info
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    int insert(OrderDO record);
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method corresponds to the database table order_info
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    int insertSelective(OrderDO record);
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method corresponds to the database table order_info
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    OrderDO selectByPrimaryKey(String id);
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method corresponds to the database table order_info
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    int updateByPrimaryKeySelective(OrderDO record);
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method corresponds to the database table order_info
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    int updateByPrimaryKey(OrderDO record);
+}

src/main/java/com/cxyxiaomo/flashsale/dataobject/OrderDO.java

@@ -0,0 +1,203 @@
+package com.cxyxiaomo.flashsale.dataobject;
+
+import java.math.BigDecimal;
+
+public class OrderDO {
+    /**
+     *
+     * This field was generated by MyBatis Generator.
+     * This field corresponds to the database column order_info.id
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    private String id;
+
+    /**
+     *
+     * This field was generated by MyBatis Generator.
+     * This field corresponds to the database column order_info.user_id
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    private Integer userId;
+
+    /**
+     *
+     * This field was generated by MyBatis Generator.
+     * This field corresponds to the database column order_info.item_id
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    private Integer itemId;
+
+    /**
+     *
+     * This field was generated by MyBatis Generator.
+     * This field corresponds to the database column order_info.item_pirce
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    private BigDecimal itemPirce;
+
+    /**
+     *
+     * This field was generated by MyBatis Generator.
+     * This field corresponds to the database column order_info.amount
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    private Integer amount;
+
+    /**
+     *
+     * This field was generated by MyBatis Generator.
+     * This field corresponds to the database column order_info.order_price
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    private BigDecimal orderPrice;
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method returns the value of the database column order_info.id
+     *
+     * @return the value of order_info.id
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    public String getId() {
+        return id;
+    }
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method sets the value of the database column order_info.id
+     *
+     * @param id the value for order_info.id
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    public void setId(String id) {
+        this.id = id == null ? null : id.trim();
+    }
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method returns the value of the database column order_info.user_id
+     *
+     * @return the value of order_info.user_id
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    public Integer getUserId() {
+        return userId;
+    }
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method sets the value of the database column order_info.user_id
+     *
+     * @param userId the value for order_info.user_id
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    public void setUserId(Integer userId) {
+        this.userId = userId;
+    }
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method returns the value of the database column order_info.item_id
+     *
+     * @return the value of order_info.item_id
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    public Integer getItemId() {
+        return itemId;
+    }
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method sets the value of the database column order_info.item_id
+     *
+     * @param itemId the value for order_info.item_id
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    public void setItemId(Integer itemId) {
+        this.itemId = itemId;
+    }
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method returns the value of the database column order_info.item_pirce
+     *
+     * @return the value of order_info.item_pirce
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    public BigDecimal getItemPirce() {
+        return itemPirce;
+    }
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method sets the value of the database column order_info.item_pirce
+     *
+     * @param itemPirce the value for order_info.item_pirce
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    public void setItemPirce(BigDecimal itemPirce) {
+        this.itemPirce = itemPirce;
+    }
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method returns the value of the database column order_info.amount
+     *
+     * @return the value of order_info.amount
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    public Integer getAmount() {
+        return amount;
+    }
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method sets the value of the database column order_info.amount
+     *
+     * @param amount the value for order_info.amount
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    public void setAmount(Integer amount) {
+        this.amount = amount;
+    }
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method returns the value of the database column order_info.order_price
+     *
+     * @return the value of order_info.order_price
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    public BigDecimal getOrderPrice() {
+        return orderPrice;
+    }
+
+    /**
+     * This method was generated by MyBatis Generator.
+     * This method sets the value of the database column order_info.order_price
+     *
+     * @param orderPrice the value for order_info.order_price
+     *
+     * @mbg.generated Thu Mar 03 22:04:45 CST 2022
+     */
+    public void setOrderPrice(BigDecimal orderPrice) {
+        this.orderPrice = orderPrice;
+    }
+}

src/main/java/com/cxyxiaomo/flashsale/service/model/OrderModel.java

@@ -0,0 +1,73 @@
+package com.cxyxiaomo.flashsale.service.model;
+
+import java.math.BigDecimal;
+
+// 用户下单的交易模型
+public class OrderModel {
+
+    // 交易号
+    private String id;
+
+    // 用户id
+    private Integer userId;
+
+    // 购买的商品Id
+    private Integer itemId;
+
+    // 购买商品的单价
+    private BigDecimal itemPrice;
+
+    // 购买数量
+    private  Integer amount;
+
+    // 购买金额
+    private BigDecimal orderPrice;
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public Integer getUserId() {
+        return userId;
+    }
+
+    public void setUserId(Integer userId) {
+        this.userId = userId;
+    }
+
+    public Integer getItemId() {
+        return itemId;
+    }
+
+    public void setItemId(Integer itemId) {
+        this.itemId = itemId;
+    }
+
+    public BigDecimal getItemPrice() {
+        return itemPrice;
+    }
+
+    public void setItemPrice(BigDecimal itemPrice) {
+        this.itemPrice = itemPrice;
+    }
+
+    public Integer getAmount() {
+        return amount;
+    }
+
+    public void setAmount(Integer amount) {
+        this.amount = amount;
+    }
+
+    public BigDecimal getOrderPrice() {
+        return orderPrice;
+    }
+
+    public void setOrderPrice(BigDecimal orderPrice) {
+        this.orderPrice = orderPrice;
+    }
+}

src/main/resources/mapping/OrderDOMapper.xml

@@ -0,0 +1,146 @@
+<?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="com.cxyxiaomo.flashsale.dao.OrderDOMapper">
+  <resultMap id="BaseResultMap" type="com.cxyxiaomo.flashsale.dataobject.OrderDO">
+    <!--
+      WARNING - @mbg.generated
+      This element is automatically generated by MyBatis Generator, do not modify.
+      This element was generated on Thu Mar 03 22:04:45 CST 2022.
+    -->
+    <id column="id" jdbcType="VARCHAR" property="id" />
+    <result column="user_id" jdbcType="INTEGER" property="userId" />
+    <result column="item_id" jdbcType="INTEGER" property="itemId" />
+    <result column="item_pirce" jdbcType="DECIMAL" property="itemPirce" />
+    <result column="amount" jdbcType="INTEGER" property="amount" />
+    <result column="order_price" jdbcType="DECIMAL" property="orderPrice" />
+  </resultMap>
+  <sql id="Base_Column_List">
+    <!--
+      WARNING - @mbg.generated
+      This element is automatically generated by MyBatis Generator, do not modify.
+      This element was generated on Thu Mar 03 22:04:45 CST 2022.
+    -->
+    id, user_id, item_id, item_pirce, amount, order_price
+  </sql>
+  <select id="selectByPrimaryKey" parameterType="java.lang.String" resultMap="BaseResultMap">
+    <!--
+      WARNING - @mbg.generated
+      This element is automatically generated by MyBatis Generator, do not modify.
+      This element was generated on Thu Mar 03 22:04:45 CST 2022.
+    -->
+    select 
+    <include refid="Base_Column_List" />
+    from order_info
+    where id = #{id,jdbcType=VARCHAR}
+  </select>
+  <delete id="deleteByPrimaryKey" parameterType="java.lang.String">
+    <!--
+      WARNING - @mbg.generated
+      This element is automatically generated by MyBatis Generator, do not modify.
+      This element was generated on Thu Mar 03 22:04:45 CST 2022.
+    -->
+    delete from order_info
+    where id = #{id,jdbcType=VARCHAR}
+  </delete>
+  <insert id="insert" parameterType="com.cxyxiaomo.flashsale.dataobject.OrderDO">
+    <!--
+      WARNING - @mbg.generated
+      This element is automatically generated by MyBatis Generator, do not modify.
+      This element was generated on Thu Mar 03 22:04:45 CST 2022.
+    -->
+    insert into order_info (id, user_id, item_id, 
+      item_pirce, amount, order_price
+      )
+    values (#{id,jdbcType=VARCHAR}, #{userId,jdbcType=INTEGER}, #{itemId,jdbcType=INTEGER}, 
+      #{itemPirce,jdbcType=DECIMAL}, #{amount,jdbcType=INTEGER}, #{orderPrice,jdbcType=DECIMAL}
+      )
+  </insert>
+  <insert id="insertSelective" parameterType="com.cxyxiaomo.flashsale.dataobject.OrderDO">
+    <!--
+      WARNING - @mbg.generated
+      This element is automatically generated by MyBatis Generator, do not modify.
+      This element was generated on Thu Mar 03 22:04:45 CST 2022.
+    -->
+    insert into order_info
+    <trim prefix="(" suffix=")" suffixOverrides=",">
+      <if test="id != null">
+        id,
+      </if>
+      <if test="userId != null">
+        user_id,
+      </if>
+      <if test="itemId != null">
+        item_id,
+      </if>
+      <if test="itemPirce != null">
+        item_pirce,
+      </if>
+      <if test="amount != null">
+        amount,
+      </if>
+      <if test="orderPrice != null">
+        order_price,
+      </if>
+    </trim>
+    <trim prefix="values (" suffix=")" suffixOverrides=",">
+      <if test="id != null">
+        #{id,jdbcType=VARCHAR},
+      </if>
+      <if test="userId != null">
+        #{userId,jdbcType=INTEGER},
+      </if>
+      <if test="itemId != null">
+        #{itemId,jdbcType=INTEGER},
+      </if>
+      <if test="itemPirce != null">
+        #{itemPirce,jdbcType=DECIMAL},
+      </if>
+      <if test="amount != null">
+        #{amount,jdbcType=INTEGER},
+      </if>
+      <if test="orderPrice != null">
+        #{orderPrice,jdbcType=DECIMAL},
+      </if>
+    </trim>
+  </insert>
+  <update id="updateByPrimaryKeySelective" parameterType="com.cxyxiaomo.flashsale.dataobject.OrderDO">
+    <!--
+      WARNING - @mbg.generated
+      This element is automatically generated by MyBatis Generator, do not modify.
+      This element was generated on Thu Mar 03 22:04:45 CST 2022.
+    -->
+    update order_info
+    <set>
+      <if test="userId != null">
+        user_id = #{userId,jdbcType=INTEGER},
+      </if>
+      <if test="itemId != null">
+        item_id = #{itemId,jdbcType=INTEGER},
+      </if>
+      <if test="itemPirce != null">
+        item_pirce = #{itemPirce,jdbcType=DECIMAL},
+      </if>
+      <if test="amount != null">
+        amount = #{amount,jdbcType=INTEGER},
+      </if>
+      <if test="orderPrice != null">
+        order_price = #{orderPrice,jdbcType=DECIMAL},
+      </if>
+    </set>
+    where id = #{id,jdbcType=VARCHAR}
+  </update>
+  <update id="updateByPrimaryKey" parameterType="com.cxyxiaomo.flashsale.dataobject.OrderDO">
+    <!--
+      WARNING - @mbg.generated
+      This element is automatically generated by MyBatis Generator, do not modify.
+      This element was generated on Thu Mar 03 22:04:45 CST 2022.
+    -->
+    update order_info
+    set user_id = #{userId,jdbcType=INTEGER},
+      item_id = #{itemId,jdbcType=INTEGER},
+      item_pirce = #{itemPirce,jdbcType=DECIMAL},
+      amount = #{amount,jdbcType=INTEGER},
+      order_price = #{orderPrice,jdbcType=DECIMAL}
+    where id = #{id,jdbcType=VARCHAR}
+  </update>
+</mapper>

src/main/resources/mybatis-generator.xml

@@ -7,7 +7,7 @@
     <context id="DB2Tables" targetRuntime="MyBatis3">
         <!-- 数据库链接地址账号密码 -->
         <jdbcConnection driverClass="com.mysql.jdbc.Driver"
-                        connectionURL="jdbc:mysql://127.0.0.1:3306/flashsale?serverTimezone=Asia/Shanghai"
+                        connectionURL="jdbc:mysql://127.0.0.1:3306/flashsale?serverTimezone=Asia/Shanghai&amp;useSSL=false"
                         userId="root"
                         password="111111">
         </jdbcConnection>
@@ -53,6 +53,9 @@
         <!--<table tableName="item_stock" domainObjectName="ItemStockDO" enableCountByExample="false"-->
         <!--       enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"-->
         <!--       selectByExampleQueryId="false"></table>-->
+        <!--<table tableName="order_info" domainObjectName="OrderDO" enableCountByExample="false"-->
+        <!--       enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"-->
+        <!--       selectByExampleQueryId="false"></table>-->
 
     </context>
 </generatorConfiguration>