springboot打包war部署至tomcat

参考文章在这里

1、把pom.xml文件中打包结果由jar改成war：

<modelVersion>4.0.0</modelVersion>
<groupId>spring-boot-panminlan-mybatis-test</groupId>
<artifactId>mybatis-test</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>

2、排除org.springframework.boot依赖中的tomcat内置容器

<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>

3、添加对servlet API的依赖

<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
</dependency>

4、继承SpringBootServletInitializer ，并覆盖它的 configure 方法，如果我们构建的是war包并部署到外部tomcat则需要使用它，如果使用内置servlet容器则不需要，外置tomcat环境的配置需要这个类的configure方法来指定初始化资源。

@SpringBootApplication
public class GuideserverApplication extends SpringBootServletInitializer {

public static void main(String[] args) {
SpringApplication.run(GuideserverApplication.class, args);
}

@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(GuideserverApplication.class);
}
}