1.下载dome文件:https://docs.open.alipay.com/399/106844/
2.部署dome项目
3.配置沙箱账号:https://openhome.alipay.com/platform/appDaily.htm?tab=info
生成RSA密钥工具下载:https://docs.open.alipay.com/291/105971
商户私钥=====商户公钥(中间)======支付宝公钥
4.配置完后,启动tomcat,运行dome
5.支付宝沙箱APP配置https://openhome.alipay.com/platform/appDaily.htm?tab=account