在conf目录下，找到tomcat-users.xml下的<tomcat-users>标签
<tomcat-users> <role rolename="admin-gui"/> <role rolename="admin-script"/> <role rolename="manager-gui"/> <role rolename="manager-script"/> <role rolename="manager-jmx"/> <role rolename="manager-status"/> <user username="system" password="123" roles="manager-gui,manager-script,manager-jmx,manager-status,admin-script,admin-gui"/> </tomcat-users>