SpringCloud HelloWord
1、jdk1.8，idea eclipse sts 下载链接：
https://repo.huaweicloud.com/java/jdk/
https://www.jetbrains.com/idea/
http://mirrors.neusoft.edu.cn/eclipse/
https://spring.io/tools/
2、maven3下载链接地址： https://archive.apache.org/dist/maven/maven-3/
3、myql界面软件 https://www.heidisql.com/download.php?download=installer
4、spring 官网 spring-cloud-alibaba 地址和说明 https://spring.io/projects/spring-cloud-alibaba
5、nacos 官网文档 https://nacos.io/zh-cn/ 下载 https://github.com/alibaba/nacos/releases/tag/2.2.0 Windows 启动命令(standalone代表着单机模式运行，非集群模式): startup.cmd -m standalone
后台: http://127.0.0.1:8848/nacos/
默认用户名和密码 nacos nacos