1、/usr/local/jdk1.8.0_191/ is not a directory on the Jenkins master (but perhaps it exists on some agents)
/usr/local/jdk1.8.0_191/目录不存在，检测Jenkins主机JDK的安装目录是否正确。
2、java: command not found
Jenkins将SpringBoot应用发送了SSH远程服务器上后，执行远程服务器上.sh脚本报错，找不到java命令行。解决方式可在目标主机上建立软连接
ln -s /usr/local/jdk1.8.0_191/bin/java /usr/bin/