springboot打包成war包放tomcat运行

<packaging>war</packaging>

        <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>javax.servlet</groupId>
	    <artifactId>javax.servlet-api</artifactId>
	    <version>3.1.0</version>
	    <scope>provided</scope>
	</dependency>

原来： 

@SpringBootApplication
@MapperScan("club.jiajiajia")
public class ApplicationRun{
    public static void main(String[] args) {
        SpringApplication.run(ApplicationRun.class, args);
    }
}

 改为：

@SpringBootApplication
@MapperScan("club.jiajiajia")
public class ApplicationRun extends SpringBootServletInitializer{
    public static void main(String[] args) {
        SpringApplication.run(ApplicationRun.class, args);
    }
    
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        // 注意这里要指向原先用main方法执行的Application启动类
        return builder.sources(ApplicationRun.class);
    }
}

clean package

转自：https://blog.csdn.net/qq_34381084/article/details/81485319