Tomcat10 修补了之前版本的漏洞，主要是javax的漏洞，导致使用javax jar包的项目不能直接部署，需要使用官方工具转换。
Apache官网提供转换程序 https://github.com/apache/tomcat-jakartaee-migration
Apache官方说明：Users of Tomcat 10 onwards should be aware that, as a result of the move from Java EE to Jakarta EE as part of the transfer of Java EE to the Eclipse Foundation, the primary package for all implemented APIs has changed from javax.* to jakarta.*. This will almost certainly require code changes to enable applications to migrate from Tomcat 9 and earlier to Tomcat 10 and later. A migration tool has been developed to aid this process.
大意是：由于Java EE 改为 Jakarta EE，javax. 的包全都换成 jakarta.。Tomcat9以及之前的版本需要使用工具来转换一下。
转换步骤使用上边提供地址下载项目并导入，运行mvn compile package，生成jar包；或者直接运行jar包：本人打包后的jar下载地址 ：https://download.csdn.net/download/linzi19900517/34210765java -jar jakartaee-migration-版本号-shaded.jar D:\源路径\demo.war D:\目标路径\newdemo.war
3.将新war包放入tomcat启动即可。