Tomcat配置SSL后使用HTTP后跳转到HTTPS

Tomcat配置好SSL后将HTTP请求自动转到HTTPS需要在TOMCAT/conf/web.xml的未尾加入以下配置：

<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> 

SSL配置参考百度云服务器部署免费的SSL证书（TOMCAT） ：https://jingyan.baidu.com/article/73c3ce285aff25e50343d9eb.html