1 、修改conf/tomcat-users.xml

<role rolename="manager-gui"/>
<user username="tomcat" password="tomcat" roles="manager-gui"/>

2、修改webapps/manager/META-INF/context.xml

<Valve className="org.apache.catalina.valves.RemoteAddrValve"         
 allow="^.*$" /> 

3 重启Tomcat 并登录 

进入tomcat目录bin文件夹下
 
./shutdown.sh
 
./startup.sh