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交易下单2-添加sequence_info表并自动生成Mapper

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程序员小墨 2022-03-03 23:10:07 +08:00
parent d44db6d5be
commit e3917d1ff1
6 changed files with 296 additions and 3 deletions
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18
Others/sql/flashsale.sql
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@ -11,7 +11,7 @@
Target Server Version : 50726
File Encoding : 65001
Date: 03/03/2022 22:01:38
Date: 03/03/2022 23:08:26
*/
SET NAMES utf8mb4;
@ -100,6 +100,22 @@ CREATE TABLE `order_info` (
-- Records of order_info
-- ----------------------------
-- ----------------------------
-- Table structure for sequence_info
-- ----------------------------
DROP TABLE IF EXISTS `sequence_info`;
CREATE TABLE `sequence_info` (
`name` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
`current_value` int(11) NOT NULL DEFAULT 0,
`step` int(11) NOT NULL DEFAULT 0,
PRIMARY KEY (`name`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of sequence_info
-- ----------------------------
INSERT INTO `sequence_info` VALUES ('order_info', 0, 1);
-- ----------------------------
-- Table structure for user_info
-- ----------------------------

53
src/main/java/com/cxyxiaomo/flashsale/dao/SequenceDOMapper.java Normal file
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@ -0,0 +1,53 @@
package com.cxyxiaomo.flashsale.dao;
import com.cxyxiaomo.flashsale.dataobject.SequenceDO;
public interface SequenceDOMapper {
/**
* This method was generated by MyBatis Generator.
* This method corresponds to the database table sequence_info
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
int deleteByPrimaryKey(String name);
/**
* This method was generated by MyBatis Generator.
* This method corresponds to the database table sequence_info
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
int insert(SequenceDO record);
/**
* This method was generated by MyBatis Generator.
* This method corresponds to the database table sequence_info
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
int insertSelective(SequenceDO record);
/**
* This method was generated by MyBatis Generator.
* This method corresponds to the database table sequence_info
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
SequenceDO selectByPrimaryKey(String name);
/**
* This method was generated by MyBatis Generator.
* This method corresponds to the database table sequence_info
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
int updateByPrimaryKeySelective(SequenceDO record);
/**
* This method was generated by MyBatis Generator.
* This method corresponds to the database table sequence_info
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
int updateByPrimaryKey(SequenceDO record);
}

102
src/main/java/com/cxyxiaomo/flashsale/dataobject/SequenceDO.java Normal file
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@ -0,0 +1,102 @@
package com.cxyxiaomo.flashsale.dataobject;
public class SequenceDO {
/**
*
* This field was generated by MyBatis Generator.
* This field corresponds to the database column sequence_info.name
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
private String name;
/**
*
* This field was generated by MyBatis Generator.
* This field corresponds to the database column sequence_info.current_value
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
private Integer currentValue;
/**
*
* This field was generated by MyBatis Generator.
* This field corresponds to the database column sequence_info.step
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
private Integer step;
/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column sequence_info.name
*
* @return the value of sequence_info.name
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
public String getName() {
return name;
}
/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column sequence_info.name
*
* @param name the value for sequence_info.name
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
public void setName(String name) {
this.name = name == null ? null : name.trim();
}
/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column sequence_info.current_value
*
* @return the value of sequence_info.current_value
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
public Integer getCurrentValue() {
return currentValue;
}
/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column sequence_info.current_value
*
* @param currentValue the value for sequence_info.current_value
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
public void setCurrentValue(Integer currentValue) {
this.currentValue = currentValue;
}
/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column sequence_info.step
*
* @return the value of sequence_info.step
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
public Integer getStep() {
return step;
}
/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column sequence_info.step
*
* @param step the value for sequence_info.step
*
* @mbg.generated Thu Mar 03 23:07:17 CST 2022
*/
public void setStep(Integer step) {
this.step = step;
}
}

12
src/main/java/com/cxyxiaomo/flashsale/service/impl/OrderServiceImpl.java
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@ -16,6 +16,8 @@ import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
@Service
public class OrderServiceImpl implements OrderService {
@ -83,13 +85,19 @@ public class OrderServiceImpl implements OrderService {
}
// 生成交易流水号，订单号
private String generateOderNo(){
private String generateOrderNo() {
// 订单号为16位
StringBuilder stringBuilder = new StringBuilder();
// 前8位为时间信息（年月日）
LocalDateTime now = LocalDateTime.now();
String nowDate = now.format(DateTimeFormatter.ISO_DATE).replace("-", "");
stringBuilder.append(nowDate);
// 中间6位为自增序列
// 最后2位为分库分表位
stringBuilder.append("00"); // 暂时写死
return "";
}
}

111
src/main/resources/mapping/SequenceDOMapper.xml Normal file
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@ -0,0 +1,111 @@
<?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.SequenceDOMapper">
<resultMap id="BaseResultMap" type="com.cxyxiaomo.flashsale.dataobject.SequenceDO">
<!--
WARNING - @mbg.generated
This element is automatically generated by MyBatis Generator, do not modify.
This element was generated on Thu Mar 03 23:07:17 CST 2022.
-->
<id column="name" jdbcType="VARCHAR" property="name" />
<result column="current_value" jdbcType="INTEGER" property="currentValue" />
<result column="step" jdbcType="INTEGER" property="step" />
</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 23:07:17 CST 2022.
-->
name, current_value, step
</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 23:07:17 CST 2022.
-->
select
<include refid="Base_Column_List" />
from sequence_info
where name = #{name,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 23:07:17 CST 2022.
-->
delete from sequence_info
where name = #{name,jdbcType=VARCHAR}
</delete>
<insert id="insert" parameterType="com.cxyxiaomo.flashsale.dataobject.SequenceDO">
<!--
WARNING - @mbg.generated
This element is automatically generated by MyBatis Generator, do not modify.
This element was generated on Thu Mar 03 23:07:17 CST 2022.
-->
insert into sequence_info (name, current_value, step
)
values (#{name,jdbcType=VARCHAR}, #{currentValue,jdbcType=INTEGER}, #{step,jdbcType=INTEGER}
)
</insert>
<insert id="insertSelective" parameterType="com.cxyxiaomo.flashsale.dataobject.SequenceDO">
<!--
WARNING - @mbg.generated
This element is automatically generated by MyBatis Generator, do not modify.
This element was generated on Thu Mar 03 23:07:17 CST 2022.
-->
insert into sequence_info
<trim prefix="(" suffix=")" suffixOverrides=",">
<if test="name != null">
name,
</if>
<if test="currentValue != null">
current_value,
</if>
<if test="step != null">
step,
</if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides=",">
<if test="name != null">
#{name,jdbcType=VARCHAR},
</if>
<if test="currentValue != null">
#{currentValue,jdbcType=INTEGER},
</if>
<if test="step != null">
#{step,jdbcType=INTEGER},
</if>
</trim>
</insert>
<update id="updateByPrimaryKeySelective" parameterType="com.cxyxiaomo.flashsale.dataobject.SequenceDO">
<!--
WARNING - @mbg.generated
This element is automatically generated by MyBatis Generator, do not modify.
This element was generated on Thu Mar 03 23:07:17 CST 2022.
-->
update sequence_info
<set>
<if test="currentValue != null">
current_value = #{currentValue,jdbcType=INTEGER},
</if>
<if test="step != null">
step = #{step,jdbcType=INTEGER},
</if>
</set>
where name = #{name,jdbcType=VARCHAR}
</update>
<update id="updateByPrimaryKey" parameterType="com.cxyxiaomo.flashsale.dataobject.SequenceDO">
<!--
WARNING - @mbg.generated
This element is automatically generated by MyBatis Generator, do not modify.
This element was generated on Thu Mar 03 23:07:17 CST 2022.
-->
update sequence_info
set current_value = #{currentValue,jdbcType=INTEGER},
step = #{step,jdbcType=INTEGER}
where name = #{name,jdbcType=VARCHAR}
</update>
</mapper>

3
src/main/resources/mybatis-generator.xml
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@ -56,6 +56,9 @@
<!--<table tableName="order_info" domainObjectName="OrderDO" enableCountByExample="false"-->
<!-- enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"-->
<!-- selectByExampleQueryId="false"></table>-->
<!--<table tableName="sequence_info" domainObjectName="SequenceDO" enableCountByExample="false"-->
<!-- enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"-->
<!-- selectByExampleQueryId="false"></table>-->
</context>
</generatorConfiguration>