如何使用node-red-contrib-bizwechat
请先看教程：基于企业微信的一对多消息送达服务-完美替代pushbear
实现信用卡还款通知教程：
第1步： 用excel表格把自己信用卡填写好
表格列参数说明
name 填写办卡人姓名
card 发卡银行
type 卡种类型
cardno 银行卡号
outdate 出帐日期（可在其银行APP查看）
days 出帐日期与还款日期间隔天数
第2步： 把excel表格数据复制到如下网址进行转JSON操作
网址：https://old.qqe2.com/jsontool/excel2json ，如图所示：
最后面多一个 ， 请去掉
第3步： 把如下流程代码复制到自己的node-red中
[{"id":"d58e0e3c.8f44d","type":"tab","label":"信用卡还款通知","disabled":false,"info":""},{"id":"79280cfc.408894","type":"inject","z":"d58e0e3c.8f44d","name":"","topic":"每天8点查询","payload":"","payloadType":"date","repeat":"","crontab":"00 08 * * *","once":false,"onceDelay":0.1,"x":180,"y":120,"wires":[["e7dd58ff.b25ff8"]]},{"id":"e138069b.5b6c18","type":"debug","z":"d58e0e3c.8f44d","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","x":930,"y":120,"wires":[]},{"id":"e7dd58ff.b25ff8","type":"function","z":"d58e0e3c.8f44d","name":"信用卡处理程序","func":" var card_json = [];//替换成你自己的json\n //msg.payload=card_json[0];\n let card_backdate = [];\n let date = new Date();\n let now_year = date.getFullYear();\n let now_month = date.getMonth() + 1;\n let now_day = date.getDate();\n card_json.forEach(item => {\n let dateyear = now_year;\n let datemonth = now_month;\n if (now_day < parseInt(item.outdate)) {\n if (now_month > 1) {\n datemonth--;\n }\n else {\n\n dateyear--;\n datemonth = 12;\n }\n\n }\n let spiltstr = \"-\";\n let dateTime = new Date(dateyear + spiltstr + datemonth + spiltstr + item.outdate);\n datemonth = dateTime.getMonth() + 1;\n //出帐单日\n let outdate = dateTime.getFullYear() + spiltstr + datemonth + spiltstr + dateTime.getDate();\n //console.log(dateTime.getFullYear() + spiltstr + datemonth + spiltstr + dateTime.getDate());\n dateTime = dateTime.setDate(dateTime.getDate() + parseInt(item.days));\n dateTime = new Date(dateTime);\n datemonth = dateTime.getMonth() + 1;\n //还款日\n let backdate = dateTime.getFullYear() + spiltstr + datemonth + spiltstr + dateTime.getDate();\n //console.log(dateTime.getFullYear() + spiltstr + datemonth + spiltstr + dateTime.getDate());\n\n if (datemonth == now_month) {\n let diffday = dateTime.getDate() - now_day;\n if (diffday >= 0 && diffday <= 2) {\n card_backdate.push({ diffday, name: item.name, card: item.card, type: item.type, cardno: item.cardno.substring(0, 4) + spiltstr + item.cardno.substring(4, 8) + spiltstr + item.cardno.substring(8, 12) + spiltstr + item.cardno.substring(12, 16), outdate, backdate });\n }\n }\n\n });\n let Markdown;\n if (card_backdate.length > 0) {\n var compare = function (prop) {\n return function (obj1, obj2) {\n var val1 = obj1[prop];\n var val2 = obj2[prop];\n if (!isNaN(Number(val1)) && !isNaN(Number(val2))) {\n val1 = Number(val1);\n val2 = Number(val2);\n }\n if (val1 < val2) {\n return -1;\n } else if (val1 > val2) {\n return 1;\n } else {\n return 0;\n }\n }\n }\n card_backdate=card_backdate.sort(compare(\"diffday\"));\n Markdown=\"\\n\";\n card_backdate.forEach(item => {\n Markdown+=\"> * 还款银行：{\"+ item.name + \"}\" + item.card + \"，剩余：\" + item.diffday + \"天\\n\";\n Markdown+=\"> * 银行类型：\" + item.type + \"\\n\";\n Markdown+=\"> * 银行卡号：\"+ item.cardno +\"\\n\";\n Markdown+=\"> * 出帐日期：\" + item.outdate +\"\\n\";\n Markdown+=\"> * 还款日期：\" + item.backdate +\"\\n\";\n Markdown+=\"> * \\n\";\n });\n\n }\n msg.title=\"最近2天到期信用卡：\" + card_backdate.length + \"张\";\n msg.number = card_backdate.length;\n msg.payload = Markdown;\n\nreturn msg;","outputs":1,"noerr":0,"x":440,"y":120,"wires":[["1c6be98d.d16736"]]},{"id":"be71b171.6b67","type":"bizwechat-input","z":"d58e0e3c.8f44d","name":"微信信用卡","bizwechat":"edbfd2fe.5f04c","x":120,"y":260,"wires":[[]]},{"id":"646cdc7c.1bc534","type":"bizwechat-pushbear","z":"d58e0e3c.8f44d","name":"还款提醒","bizwechat":"edbfd2fe.5f04c","touser":"","toparty":"","title":"信用卡还款通知","description":"","x":780,"y":120,"wires":[["e138069b.5b6c18"]]},{"id":"1c6be98d.d16736","type":"switch","z":"d58e0e3c.8f44d","name":"","property":"number","propertyType":"msg","rules":[{"t":"gt","v":"0","vt":"str"}],"checkall":"true","repair":false,"outputs":1,"x":630,"y":120,"wires":[["646cdc7c.1bc534"]]},{"id":"29c578a4.5b1d28","type":"inject","z":"d58e0e3c.8f44d","name":"","topic":"每天20点查询","payload":"","payloadType":"date","repeat":"","crontab":"00 20 * * *","once":false,"onceDelay":0.1,"x":180,"y":180,"wires":[["e7dd58ff.b25ff8"]]},{"id":"edbfd2fe.5f04c","type":"bizwechat-configurator","z":"","name":"企业微信服务端","port":"","corpid":"","agentid":"","corpsecret":"","url":"","token":"","aeskey":"","client_id":"","client_secret":""}]
第4步：
对企业微信服务端配置修改成自己的，对函数中的JSON修改上面获得的JSON即可快速实现。
处理函数自己可以进行修改，默认查询最近2天信用卡还款，后期考虑把还款金额加入。
最终效果：
我缺的是通知吗? 我缺的是钱!