[Liferay] Protect portlet

[Phuc Bui]

Hi,
I want to protect my portlet like this

Just user having required role can access my portlet.

So, how can I do that ???
I have tried in portlet-ext.xml (develop in Liferay EXT)

<portlet>
        <portlet-name>Test</portlet-name>
        <display-name>Test</display-name>
        <portlet-class>com.liferay.portlet.StrutsPortlet</portlet-class>
        <init-param>
            <name>view-action</name>
            <value>/sgs/test/view</value>
        </init-param>
        .......
       <security-role-ref>
            <role-name>administrator</role-name>
        </security-role-ref>
       
    </portlet>

in liferay-portlet-ext

...
<role-mapper>
        <role-name>administrator</role-name>
        <role-link>Administrator</role-link>
</role-mapper>
...

But it does not work

Help me please

Phuc Bui