> For the complete documentation index, see [llms.txt](https://jack80342.gitbook.io/spring-boot/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jack80342.gitbook.io/spring-boot/ix.-how-to-guides/75.-embedded-web-servers/75.14-configure-undertow.md).

# 75.14 配置Undertow

通常你可以遵循[74.8 发现外部属性的内置选项](https://docs.spring.io/spring-boot/docs/2.0.0.RELEASE/reference/htmlsingle/#howto-discover-build-in-options-for-external-properties)关于`@ConfigurationProperties`（此处主要是`ServerProperties`和`ServerProperties.Undertow`），但也要看下`WebServerFactoryCustomizer`。一旦获取到`UndertowServletWebServerFactory`，你就可以使用`UndertowBuilderCustomizer`修改Undertow的配置以满足你的需求，或更彻底地就是添加你自己的`UndertowServletWebServerFactory`。