tomcat自动启动的问题

[Unit]
Description=Apache Tomcat Web Application Container
After=network.target remote-fs.target nss-lookup.target

[Service]
Type=forking
Environment=JAVA_HOME=/opt/jdk
Environment=CATALINA_HOME=/opt/tomcat8
Environment=CATALINA_BASE=/opt/tomcat8

ExecStart=/bin/bash /opt/tomcat8/bin/startup.sh
ExecStop=/opt/tomcat8/bin/shutdown.sh

[Install]
WantedBy=multi-user.target

在/etc/systemd/system/目录下编辑tomcat.service文件

执行systemctl start tomcat.service的时候就会出错

在ExecStart没有加/bin/bash的时候就会报错    The process' exit code is 'exited' and its exit status is 203.