tomcat7.0.55配置HTTP强制跳转到HTTPS

    <login-config>
        <!-- Authorization setting for SSL -->
        <auth-method>CLIENT-CERT</auth-method>
        <realm-name>Client Cert Users-only Area</realm-name>
    </login-config>
    <security-constraint>
        <!-- Authorization setting for SSL -->
        <web-resource-collection >
            <web-resource-name >SSL</web-resource-name>
            <url-pattern>/*</url-pattern>
        </web-resource-collection>
        <user-data-constraint>
            <transport-guarantee>CONFIDENTIAL</transport-guarantee>
        </user-data-constraint>
    </security-constraint>