使用外部tomcat部署时，为排除springboot内置的tomcat，修改pom.xml文件，增加

<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-tomcat</artifactId>
			<scope>provided</scope>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
			<!--排除内置容器，排除内置容器导出成war包可以让外部容器运行spring-boot项目-->
			<exclusions>
				<exclusion>
					<groupId>org.springframework.boot</groupId>
					<artifactId>spring-boot-starter-tomcat</artifactId>
				</exclusion>
			</exclusions>
		</dependency>

@EnableEurekaServer  
@SpringBootApplication  
public class EurekaServerApplication extends SpringBootServletInitializer{  
  
    @Override  
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {  
        return builder.sources(EurekaServerApplication.class);  
    }  
  
    public static void main(String[] args) {  
        //SpringApplication.run(EurekaServerApplication.class, args);  
        new SpringApplicationBuilder(EurekaServerApplication.class).web(true).run(args);  
    }  
}