springboot项目打成war包部署到tomcat（启动并访问）

springboot项目打成war包部署到tomcat（启动并访问）
默认已安装tomcat 且已有springboot项目本文只讲整个大概流程作为个人测试记录因此此文极其粗糙

1.首先更改pom文件

1.设置打包方式为war
在project标签对内添加packaging标签对设置值为 war

<packaging>war</packaging>

2.移除springboot内置tomcat 并添加 javax.servlet-api 依赖

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>2.3.9.RELEASE</version>
            <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>4.0.1</version>
        </dependency>
    </dependencies>

2.更改启动类

让启动类继承SpringBootServletInitializer类并重写configure方法

@SpringBootApplication
public class MySpringBootApplication extends SpringBootServletInitializer {
    public static void main(String[] args) {
        SpringApplication.run(MySpringBootApplication.class,args);
    }

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

}

3.编写测试类及方法

在做1、2步骤之前确保项目启动后下面的测试方法能正常访问

@RequestMapping("/myFirstController")
@RestController
public class MyFirstController {

    @RequestMapping("/getStr")
    public String getStr() {
        return "SUCCESS!";
    }
}