1、檢查專案的pom.xml的打包方式是否為war

<packaging>war</packaging>

2、新增tomcat依賴，將其scope設定為provided

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

3、排除內建的tomcat

<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>
 

4、修改專案啟動類

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