https://github.com/Netflix/Hystrix.git
https://github.com/Netflix-Skunkworks/hystrix-dashboard
注意：hystrix-dashboard缺失一个gradle-wrapper.jar文件，可以将Hystrix中的wrapper文件夹复制并覆盖hystrix-dashboard下的wrapper文件夹。
cd hystrix-examples-webapp
../gradlew appRun
打开http://localhost:8989/hystrix-examples-webapp校验
cd hystrix-dashboard
./gradlew appRun
打开http://localhost:7979/hystrix-dashboard校验
添加http://localhost:8989/hystrix-examples-webapp/hystrix.stream，并启动hystrix流监控
while true;
do curl "http://localhost:8989/hystrix-examples-webapp/";
done