如何在tomcat7中开启HTTP强制跳转HTTPS？ HTTPS报错

配置web.xml文件，开启HTTP强制跳转HTTPS。 在文件后添加以下内容：

    <!-- 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>

然后重启Tomcat