java - Spring boot configure custom jsessionid for embedded server

Question

I want to configure my servlet context, such as setting a custom jsessionId key (see Changing cookie JSESSIONID name)

I believe I can use the SpringBootServletInitializer when running a WAR file, manipulating the servletContext in onStartup(). However, when I run on an embedded application server, using new SpringApplicationBuilder().run(), I don't know the best place to manipulate the servlet context.

Answer 1

As of Spring Boot 1.3 you can simply set a configuration property;

Spring Boot 1.3, 1.4, 1.5

server.session.cookie.name = MYSESSIONID

Spring Boot 2.x

server.servlet.session.cookie.name = MYSESSIONID

A lot simpler than writing a configuration class.

See https://docs.spring.io/spring-boot/docs/current/reference/html/common-application-properties.html for more session related properties.