FM : TH_GET_VIRT_HOST_DATA
Spring Boot will launch an embedded Tomcat instance automatically:
How to change this default 8080 port
or change it by code:
or implement WebServerFactoryCustomizer interface:
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Netweaver的端口号和Spring boot内嵌的Tomcat端口
原文：https://www.cnblogs.com/sap-jerry/p/12407859.html