15、SpringBoot 嵌入式的Servlet容器如何切换

1、springboot默认使用的是Tomcat容器，是因为pom.xml中，web中默认使用的是tomcat

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>

        </dependency>

2、如果要把Tomcat 替换成jetty

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <artifactId>spring-boot-starter-tomcat</artifactId>
                    <groupId>org.springframework.boot</groupId>
                </exclusion>
            </exclusions>
        </dependency>

        <!--引入其他的Servlet容器-->
        <dependency>
            <artifactId>spring-boot-starter-jetty</artifactId>
            <groupId>org.springframework.boot</groupId>
        </dependency>

3、如果想使用 undertow

    <!-- 引入web模块 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <artifactId>spring-boot-starter-tomcat</artifactId>
                    <groupId>org.springframework.boot</groupId>
                </exclusion>
            </exclusions>
        </dependency>

        <!--引入其他的Servlet容器-->
        <dependency>
            <artifactId>spring-boot-starter-undertow</artifactId>
            <groupId>org.springframework.boot</groupId>
        </dependency>