这是一个简单的springcloud function范例
详细说明地址：https://blog.csdn.net/zhulier1124/article/details/100133932
启动后默认8080端口，测试请求地址
curl localhost:8080/word -H "Content-Type: text/plain" -d "aa,bb,cc,dd,ee"
curl localhost:8080/reverseString -H "Content-Type: text/plain" -d "Baeldung User"
curl localhost:8080/greeter -H "Content-Type: text/plain" -d "World"