Check the status of the tomcat server role configuration

1, check out the official explanation

2, see web.xml

       This means web.xml: / the webapps / Manager / the WEB-INF web.xml under.

       

  <!-- Define the Manager Servlet Mapping -->
  <servlet-mapping>
    <servlet-name>Manager</servlet-name>
      <url-pattern>/text/*</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>Status</servlet-name>
    <url-pattern>/status/*</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>JMXProxy</servlet-name>
      <url-pattern>/jmxproxy/*</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>HTMLManager</servlet-name>
    <url-pattern>/html/*</url-pattern>
  </servlet-mapping>

      

  <!-- Define a Security Constraint on this Application -->
  <!-- NOTE:  None of these roles are present in the default users file -->
  <security-constraint>
    <web-resource-collection>
      <web-resource-name>HTML Manager interface (for humans)</web-resource-name>
      <url-pattern>/html/*</url-pattern>
    </web-resource-collection>
    <auth-constraint>
       <role-name>manager-gui</role-name>
    </auth-constraint>
  </security-constraint>
  <security-constraint>
    <web-resource-collection>
      <web-resource-name>Text Manager interface (for scripts)</web-resource-name>
      <url-pattern>/text/*</url-pattern>
    </web-resource-collection>
    <auth-constraint>
       <role-name>manager-script</role-name>
    </auth-constraint>
  </security-constraint>
  <security-constraint>
    <web-resource-collection>
      <web-resource-name>JMX Proxy interface</web-resource-name>
      <url-pattern>/jmxproxy/*</url-pattern>
    </web-resource-collection>
    <auth-constraint>
       <role-name>manager-jmx</role-name>
    </auth-constraint>
  </security-constraint>
  <security-constraint>
    <web-resource-collection>
      <web-resource-name>Status interface</web-resource-name>
      <url-pattern>/status/*</url-pattern>
    </web-resource-collection>
    <auth-constraint>
       <role-name>manager-gui</role-name>
       <role-name>manager-script</role-name>
       <role-name>manager-jmx</role-name>
       <role-name>manager-status</role-name>
    </auth-constraint>
  </security-constraint>

Specific role name 

<!-- Security roles referenced by this web application -->
  <security-role>
    <description>
      The role that is required to access the HTML Manager pages
    </description>
    <role-name>manager-gui</role-name>
  </security-role>
  <security-role>
    <description>
      The role that is required to access the text Manager pages
    </description>
    <role-name>manager-script</role-name>
  </security-role>
  <security-role>
    <description>
      The role that is required to access the HTML JMX Proxy
    </description>
    <role-name>manager-jmx</role-name>
  </security-role>
  <security-role>
    <description>
      The role that is required to access to the Manager Status pages
    </description>
    <role-name>manager-status</role-name>
  </security-role>

 

• manager-gui — Access to the HTML interface.
• manager-status — Access to the "Server Status" page only.
• manager-script — Access to the tools-friendly plain text interface that is described in this document, and to the "Server Status" page.
• manager-jmx — Access to JMX proxy interface and to the "Server Status" page.
• If you set the manager-jmx  or manager-script   would not have set manager-status roles, because these two roles is included in default

3, configure tomcat-users.xml

     The file in the directory: under tomcat / conf, configure an administrator user that contains all of the roles

 <role rolename="manager-gui"/>
 <role rolename="manager-script"/>
 <role rolename="manager-jmx"/>
 <role rolename="manager-status"/>
 <user username="admin" password="admin" roles="manager-gui,manager-script,manager-jmx"/>

   After configuration is complete, you need to restart the tomcat service.

4, see the tomcat status

       After tomcat starts, click Server Status button to view server status, click, step configured on a user name and password: admin, log in to view

       

服务器状态：

注：如果不用web部署功能查看服务器状态,建议删除webapps目录下的内容,这样你的tomcat启动速度会变快,并且其他人也不能通过这个地址来访问，变得更安全。但有的框架会调用这个目录下的内容，请根据具体情况，决定是否删除。