Linux下tomcat访问具体文件

//如题，系统CentOS 6.8
//安装tomcat后在 ./conf/server.xml
      <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">
后添加
      <Context path="/usr/local/tomcat/webapps/upgrades" docBase="/usr/local/tomcat/webapps/upgrades"/>
///usr/local/tomcat/webapps/upgrades是访问的绝对路径