新增下单库存预警消息推送

src/main/java/com/chaozhanggui/system/cashierservice/dao/TbUserShopMsgMapper.java

@@ -0,0 +1,28 @@
+package com.chaozhanggui.system.cashierservice.dao;
+
+import com.chaozhanggui.system.cashierservice.entity.TbUserShopMsg;
+import org.apache.ibatis.annotations.Select;
+
+/**
+* @author Administrator
+* @description 针对表【tb_user_shop_msg】的数据库操作Mapper
+* @createDate 2024-06-28 09:55:30
+* @Entity com.chaozhanggui.system.cashierservice.entity.TbUserShopMsg
+*/
+public interface TbUserShopMsgMapper {
+
+    int deleteByPrimaryKey(Long id);
+
+    int insert(TbUserShopMsg record);
+
+    int insertSelective(TbUserShopMsg record);
+
+    TbUserShopMsg selectByPrimaryKey(Long id);
+
+    int updateByPrimaryKeySelective(TbUserShopMsg record);
+
+    int updateByPrimaryKey(TbUserShopMsg record);
+
+    @Select("select * from tb_user_shop_msg where shop_id=#{shopId}")
+    TbUserShopMsg selectByShopId(String shopId);
+}

src/main/java/com/chaozhanggui/system/cashierservice/entity/TbUserShopMsg.java

@@ -0,0 +1,94 @@
+package com.chaozhanggui.system.cashierservice.entity;
+
+import java.io.Serializable;
+import java.util.Date;
+import lombok.Data;
+
+/**
+ * 
+ * @TableName tb_user_shop_msg
+ */
+@Data
+public class TbUserShopMsg implements Serializable {
+    /**
+     * 
+     */
+    private Integer shopId;
+
+    /**
+     * 
+     */
+    private String openId;
+
+    /**
+     * 
+     */
+    private String remark;
+
+    /**
+     * 状态 1 正常 0 禁用
+     */
+    private String status;
+
+    /**
+     * 
+     */
+    private Date createTime;
+
+    /**
+     * 
+     */
+    private Date updateTime;
+
+    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;
+        }
+        TbUserShopMsg other = (TbUserShopMsg) that;
+        return (this.getShopId() == null ? other.getShopId() == null : this.getShopId().equals(other.getShopId()))
+            && (this.getOpenId() == null ? other.getOpenId() == null : this.getOpenId().equals(other.getOpenId()))
+            && (this.getRemark() == null ? other.getRemark() == null : this.getRemark().equals(other.getRemark()))
+            && (this.getStatus() == null ? other.getStatus() == null : this.getStatus().equals(other.getStatus()))
+            && (this.getCreateTime() == null ? other.getCreateTime() == null : this.getCreateTime().equals(other.getCreateTime()))
+            && (this.getUpdateTime() == null ? other.getUpdateTime() == null : this.getUpdateTime().equals(other.getUpdateTime()));
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((getShopId() == null) ? 0 : getShopId().hashCode());
+        result = prime * result + ((getOpenId() == null) ? 0 : getOpenId().hashCode());
+        result = prime * result + ((getRemark() == null) ? 0 : getRemark().hashCode());
+        result = prime * result + ((getStatus() == null) ? 0 : getStatus().hashCode());
+        result = prime * result + ((getCreateTime() == null) ? 0 : getCreateTime().hashCode());
+        result = prime * result + ((getUpdateTime() == null) ? 0 : getUpdateTime().hashCode());
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append(getClass().getSimpleName());
+        sb.append(" [");
+        sb.append("Hash = ").append(hashCode());
+        sb.append(", shopId=").append(shopId);
+        sb.append(", openId=").append(openId);
+        sb.append(", remark=").append(remark);
+        sb.append(", status=").append(status);
+        sb.append(", createTime=").append(createTime);
+        sb.append(", updateTime=").append(updateTime);
+        sb.append(", serialVersionUID=").append(serialVersionUID);
+        sb.append("]");
+        return sb.toString();
+    }
+}

src/main/java/com/chaozhanggui/system/cashierservice/service/CartService.java

@@ -13,9 +13,11 @@ import com.chaozhanggui.system.cashierservice.redis.RedisUtil;
 import com.chaozhanggui.system.cashierservice.util.DateUtils;
 import com.chaozhanggui.system.cashierservice.util.JSONUtil;
 import com.chaozhanggui.system.cashierservice.util.N;
+import com.chaozhanggui.system.cashierservice.wxUtil.WechatUtil;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.CollectionUtils;
@@ -24,6 +26,7 @@ import java.io.IOException;
 import java.math.BigDecimal;
 import java.time.Instant;
 import java.util.*;
+import java.util.concurrent.CompletableFuture;
 
 /**
  * @author lyf
@@ -54,9 +57,19 @@ public class CartService {
     private TbUserCouponsMapper userCouponsMapper;
     @Autowired
     private TbSystemCouponsMapper systemCouponsMapper;
+    private final TbUserShopMsgMapper tbUserShopMsgMapper;
+    private final WechatUtil wechatUtil;
 
     @Autowired
     private RabbitProducer producer;
+    @Qualifier("tbShopInfoMapper")
+    @Autowired
+    private TbShopInfoMapper tbShopInfoMapper;
+
+    public CartService(TbUserShopMsgMapper tbUserShopMsgMapper, WechatUtil wechatUtil) {
+        this.tbUserShopMsgMapper = tbUserShopMsgMapper;
+        this.wechatUtil = wechatUtil;
+    }
 
     public void initCart(JSONObject jsonObject) {
         String tableId = jsonObject.getString("tableId");
@@ -237,13 +250,22 @@ public class CartService {
         }
     }
 
+    /**
+     * 修改库存并根据警告线发送消息
+     * @param product 商品
+     * @param productSku sku
+     * @param num 库存数
+     */
     private void updateProductStock(TbProduct product, TbProductSkuWithBLOBs productSku, Integer num) {
         String key = RedisCst.PRODUCT + product.getShopId() + ":product" + product.getId();
+        double stock = num;
         if (product.getIsDistribute() == 1) {
             productMapper.updateStockById(product.getId().toString(), num);
+            stock = (double) (product.getStockNumber() - num);
         } else {
             key = RedisCst.PRODUCT + product.getShopId() + ":" + productSku.getId();
             productSkuMapper.updateStockById(productSku.getId().toString(), num);
+            stock = productSku.getStockNumber() - num;
         }
 
         if (num > 0) {
@@ -251,6 +273,42 @@ public class CartService {
         } else {
             redisUtil.getIncrNum(key, "2");
         }
+
+        CompletableFuture.runAsync(() -> checkWarnLineAndSendMsg(productSku, product));
+
+    }
+
+    /**
+     * 校验商品库存警戒线并通知商户
+     * @param productSku sku
+     */
+    private void checkWarnLineAndSendMsg(TbProductSku productSku, TbProduct product) {
+        if (productSku.getWarnLine() == null) {
+            return;
+        }
+
+        TbShopInfo shopInfo = tbShopInfoMapper.selectByPrimaryKey(Integer.valueOf(product.getShopId()));
+        if (shopInfo == null) {
+            log.info("商品库存预警发送失败，店铺不存在，店铺id：{}", product.getShopId());
+            return;
+        }
+
+        if (productSku.getStockNumber() == null) {
+            productSku.setStockNumber((double) 0);
+        }
+
+        if (product.getStockNumber() == null) {
+            product.setStockNumber(0);
+        }
+        if (
+                (product.getIsDistribute() == 1 && productSku.getStockNumber() <= productSku.getWarnLine())
+                        || (product.getIsDistribute() != 1) && product.getStockNumber() <= productSku.getWarnLine()
+        ) {
+            TbUserShopMsg tbUserShopMsg = tbUserShopMsgMapper.selectByShopId(productSku.getShopId());
+            wechatUtil.sendStockWarnMsg(shopInfo.getShopName(), product.getName(),
+                    product.getIsDistribute() == 1 ? productSku.getStockNumber().toString() : product.getStockNumber().toString(),
+                    "耗材库存不足，请及时补充。", tbUserShopMsg.getOpenId());
+        }
     }
 
     private TbCashierCart addCart(String productId, String skuId, Integer userId, Integer num, String tableId, String shopId) throws Exception {

src/main/java/com/chaozhanggui/system/cashierservice/wxUtil/WechatUtil.java

@@ -1,17 +1,24 @@
 package com.chaozhanggui.system.cashierservice.wxUtil;
 
+import cn.hutool.core.util.ObjectUtil;
+import cn.hutool.http.HttpRequest;
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONObject;
 import com.chaozhanggui.system.cashierservice.util.HttpClientUtil;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Component;
 import org.springframework.web.client.RestTemplate;
 
 import java.util.HashMap;
+import java.util.LinkedHashMap;
 import java.util.Map;
-
+@Slf4j
+@Component
 public class WechatUtil {
 
     public static JSONObject getSessionKeyOrOpenId(String code, String appId, String secrete) {
@@ -70,4 +77,87 @@ public class WechatUtil {
         return null;
     }
 
+
+    @Value("${wx.msg.appId}")
+    private String appId;
+
+    @Value("${wx.msg.secrete}")
+    private String secrete;
+
+    @Value("${wx.msg.warnMsgTmpId}")
+    private String msgTmpId;
+
+    static LinkedHashMap<String,String> linkedHashMap=new LinkedHashMap<>();
+
+    static {
+
+        linkedHashMap.put("40001","获取 access_token 时 AppSecret 错误，或者 access_token 无效。请开发者认真比对 AppSecret 的正确性，或查看是否正在为恰当的公众号调用接口");
+        linkedHashMap.put("40003","不合法的 OpenID ，请开发者确认 OpenID （该用户）是否已关注公众号，或是否是其他公众号的 OpenID");
+        linkedHashMap.put("40014","不合法的 access_token ，请开发者认真比对 access_token 的有效性（如是否过期），或查看是否正在为恰当的公众号调用接口");
+        linkedHashMap.put("40037","不合法的 template_id");
+        linkedHashMap.put("43101","用户未订阅消息");
+        linkedHashMap.put("43107","订阅消息能力封禁");
+        linkedHashMap.put("43108","并发下发消息给同一个粉丝");
+        linkedHashMap.put("45168","命中敏感词");
+        linkedHashMap.put("47003","参数错误");
+
+    }
+
+    public JSONObject getAccessToken(){
+        String requestUrl = "https://api.weixin.qq.com/cgi-bin/token";
+        Map<String, String> requestUrlParam = new HashMap<>();
+        //小程序appId
+        requestUrlParam.put("appid", appId);
+        //小程序secret
+        requestUrlParam.put("secret", secrete);
+        //默认参数
+        requestUrlParam.put("grant_type", "client_credential");
+        JSONObject jsonObject = JSON.parseObject(HttpClientUtil.doGet(requestUrl,requestUrlParam));
+        return jsonObject;
+    }
+
+    public JSONObject sendStockWarnMsg(String shopName, String productName, String stock, String note, String toUserOpenId) {
+        Map<String, Object> data = new HashMap<String, Object>() {{
+            put("thing1", new HashMap<String, Object>(){{
+                put("value", shopName);
+            }});
+            put("thing6", new HashMap<String, Object>(){{
+                put("value", productName);
+            }});
+            put("number7", new HashMap<String, Object>(){{
+                put("value", stock);
+            }});
+            put("thing5", new HashMap<String, Object>(){{
+                put("value", note);
+            }});
+        }};
+        log.info("开始发送库存预警消息， 接收用户openId: {}, 消息数据: {}", toUserOpenId, data);
+        return sendTempMsg(msgTmpId, toUserOpenId, data);
+    }
+
+
+    public JSONObject sendTempMsg(String tempId, String toUserOpenId, Map<String, Object> data) {
+        log.info("开始发送微信模板消息， 接收用户openId: {}, 消息数据: {}", toUserOpenId, data);
+        JSONObject object= getAccessToken();
+        String accessToken=object.get("access_token")+"";
+
+        JSONObject object1=new JSONObject();
+
+        object1.put("template_id", tempId);
+        object1.put("touser", toUserOpenId);
+        object1.put("data",data);
+
+        object1.put("miniprogram_state","trial");
+        object1.put("lang","zh_CN");
+
+        String response= HttpRequest.post("https://api.weixin.qq.com/cgi-bin/message/subscribe/send?access_token=".concat(accessToken)).body(object1.toString()).execute().body();
+        log.info("微信模板消息发送成功，相应内容:{}",response);
+        JSONObject resObj=JSONObject.parseObject(response);
+        if(ObjectUtil.isNotEmpty(resObj)&&ObjectUtil.isNotNull(resObj)&&"0".equals(resObj.get("errcode")+"")){
+            return resObj;
+        }
+
+        throw new RuntimeException(linkedHashMap.getOrDefault(resObj.get("errcode") + "", "未知错误"));
+    }
+
 }

src/main/resources/mapper/TbUserShopMsgMapper.xml

@@ -0,0 +1,91 @@
+<?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.chaozhanggui.system.cashierservice.dao.TbUserShopMsgMapper">
+
+    <resultMap id="BaseResultMap" type="com.chaozhanggui.system.cashierservice.entity.TbUserShopMsg">
+            <id property="shopId" column="shop_id" jdbcType="INTEGER"/>
+            <result property="openId" column="open_id" jdbcType="VARCHAR"/>
+            <result property="remark" column="remark" jdbcType="VARCHAR"/>
+            <result property="status" column="status" jdbcType="VARCHAR"/>
+            <result property="createTime" column="create_time" jdbcType="TIMESTAMP"/>
+            <result property="updateTime" column="update_time" jdbcType="TIMESTAMP"/>
+    </resultMap>
+
+    <sql id="Base_Column_List">
+        shop_id,open_id,remark,
+        status,create_time,update_time
+    </sql>
+
+    <select id="selectByPrimaryKey" parameterType="java.lang.Long" resultMap="BaseResultMap">
+        select
+        <include refid="Base_Column_List" />
+        from tb_user_shop_msg
+        where  shop_id = #{shopId,jdbcType=INTEGER} 
+    </select>
+
+    <delete id="deleteByPrimaryKey" parameterType="java.lang.Long">
+        delete from tb_user_shop_msg
+        where  shop_id = #{shopId,jdbcType=INTEGER} 
+    </delete>
+    <insert id="insert" keyColumn="shop_id" keyProperty="shopId" parameterType="com.chaozhanggui.system.cashierservice.entity.TbUserShopMsg" useGeneratedKeys="true">
+        insert into tb_user_shop_msg
+        ( shop_id,open_id,remark
+        ,status,create_time,update_time
+        )
+        values (#{shopId,jdbcType=INTEGER},#{openId,jdbcType=VARCHAR},#{remark,jdbcType=VARCHAR}
+        ,#{status,jdbcType=VARCHAR},#{createTime,jdbcType=TIMESTAMP},#{updateTime,jdbcType=TIMESTAMP}
+        )
+    </insert>
+    <insert id="insertSelective" keyColumn="shop_id" keyProperty="shopId" parameterType="com.chaozhanggui.system.cashierservice.entity.TbUserShopMsg" useGeneratedKeys="true">
+        insert into tb_user_shop_msg
+        <trim prefix="(" suffix=")" suffixOverrides=",">
+                <if test="shopId != null">shop_id,</if>
+                <if test="openId != null">open_id,</if>
+                <if test="remark != null">remark,</if>
+                <if test="status != null">status,</if>
+                <if test="createTime != null">create_time,</if>
+                <if test="updateTime != null">update_time,</if>
+        </trim>
+        <trim prefix="values (" suffix=")" suffixOverrides=",">
+                <if test="shopId != null">#{shopId,jdbcType=INTEGER},</if>
+                <if test="openId != null">#{openId,jdbcType=VARCHAR},</if>
+                <if test="remark != null">#{remark,jdbcType=VARCHAR},</if>
+                <if test="status != null">#{status,jdbcType=VARCHAR},</if>
+                <if test="createTime != null">#{createTime,jdbcType=TIMESTAMP},</if>
+                <if test="updateTime != null">#{updateTime,jdbcType=TIMESTAMP},</if>
+        </trim>
+    </insert>
+    <update id="updateByPrimaryKeySelective" parameterType="com.chaozhanggui.system.cashierservice.entity.TbUserShopMsg">
+        update tb_user_shop_msg
+        <set>
+                <if test="openId != null">
+                    open_id = #{openId,jdbcType=VARCHAR},
+                </if>
+                <if test="remark != null">
+                    remark = #{remark,jdbcType=VARCHAR},
+                </if>
+                <if test="status != null">
+                    status = #{status,jdbcType=VARCHAR},
+                </if>
+                <if test="createTime != null">
+                    create_time = #{createTime,jdbcType=TIMESTAMP},
+                </if>
+                <if test="updateTime != null">
+                    update_time = #{updateTime,jdbcType=TIMESTAMP},
+                </if>
+        </set>
+        where   shop_id = #{shopId,jdbcType=INTEGER} 
+    </update>
+    <update id="updateByPrimaryKey" parameterType="com.chaozhanggui.system.cashierservice.entity.TbUserShopMsg">
+        update tb_user_shop_msg
+        set 
+            open_id =  #{openId,jdbcType=VARCHAR},
+            remark =  #{remark,jdbcType=VARCHAR},
+            status =  #{status,jdbcType=VARCHAR},
+            create_time =  #{createTime,jdbcType=TIMESTAMP},
+            update_time =  #{updateTime,jdbcType=TIMESTAMP}
+        where   shop_id = #{shopId,jdbcType=INTEGER} 
+    </update>
+</mapper>