https://blog.csdn.net/sanshipianyezi/article/details/72737391  參考該作者，補充你兩點

1. 關於埠號的修改

<Connector port="443" protocol="org.apache.coyote.http11.Http11NioProtocol"
               maxThreads="150" SSLEnabled="true" scheme="https" secure="true"
               clientAuth="false" sslProtocol="TLS" 
               keystoreFile="/user/software/tomcat-8.0.28-api/.keystore" keystorePass="passWord"/>
 

這邊修改為443後，http的埠號8080或者80的配置有一個埠號要修改

 <Connector port="80" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="443" /> <!-- 注意 -->

還有一處

<Connector port="8009" protocol="AJP/1.3" redirectPort="443" />

2. 配置tomcat使http自動跳轉至https，配置conf裡的web.xml檔案

<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>
 

3. 重啟tomcat

測試訪問 會自動跳轉至https說明配置成功了