HTTP重定向到 HTTPS
① 打开 tomcat 的 conf\server.xml 文件。将 http 端口配置中重定向的端口设置 https 的端口。即将 redirectPort="8443" 的值改为 https 的端口
② 设置 http 强制跳转到 https
修改 tomcat 的 conf\web.xml 文件，在末尾添加：
需要添加的配置项参考如下：
<!-- http 强制转 https 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>
<!-- 禁用没必要的 http 请求类型 配置 -->
<security-constraint>
<web-resource-collection>
<web-resource-name>filter-http-method</web-resource-name>
<url-pattern>/*</url-pattern>
<http-method>OPTIONS</http-method>
<http-method>PUT</http-method>
<http-method>DELETE</http-method>
<http-method>OPTIONS</http-method>
<http-method>HEAD</http-method>
</web-resource-collection>
<auth-constraint></auth-constraint>
</security-constraint>
