``` 1. 默認情況下SpringBoot使用Tomcat作為內嵌的Servlet容器 2. Undertow是一個采用java開發的靈活的高性能web服務器，提供包括阻塞和基于NIO的非阻塞機制 3. 將Web服務器更換為Undertow來提高性能 ``` ``` <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <exclusions> <exclusion> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> </exclusion> </exclusions> </dependency> ``` ``` <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-undertow</artifactId> </dependency> ```