How to Set a Context Path in a Spring Boot Application?

Add Context Path to Spring Boot Application

Q: I'm trying to set the context root programmatically in a Spring Boot application, but it's not appending to the request mapping. What am I missing?

A: You're attempting to create a custom solution, but Spring Boot already supports this feature. Create an application.properties file in src/main/resources and add the following properties:

server.contextPath=/mainstay
server.port=12378

For Spring Boot 2.0:

server.servlet.context-path=/mainstay

Remove the custom servlet container configuration, or use an EmbeddedServletContainerCustomizer to apply post-processing.

The application.properties values serve as defaults, which you can override using another application.properties file or JVM parameters (-Dserver.port=6666).

The ServerProperties class implements EmbeddedServletContainerCustomizer, with a default context path of "". In your code, you're directly setting the context path on TomcatEmbeddedServletContainerFactory. However, ServerProperties will override it with "" during processing.

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