SpringBoot打可执行war包

1. 主程序类：

@springbootapplication
public class application extends springbootservletinitializer {

    @override
    protected springapplicationbuilder configure(springapplicationbuilder application) {
        return application.sources(application.class);
    }

    public static void main(string[] args) {
        springapplication.run(application.class, args);
    }

}

2. pom.xml：

<project xmlns="http://maven.apache.org/pom/4.0.0" xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xsi:schemalocation="http://maven.apache.org/pom/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelversion>4.0.0</modelversion>
  <groupid>com.cf</groupid>
  <artifactid>packagea</artifactid>
  <version>0.0.1-snapshot</version>
  
  <!-- 打包方式 -->
  <packaging>war</packaging>
  
    <parent>
        <groupid>org.springframework.boot</groupid>
        <artifactid>spring-boot-starter-parent</artifactid>
        <version>2.1.9.release</version>
        <relativepath/> <!-- lookup parent from repository -->
    </parent>
    
    <dependencies>
        <dependency>
            <groupid>org.springframework.boot</groupid>
            <artifactid>spring-boot-starter-web</artifactid>
        </dependency>
        
        <!-- 嵌入式tomcat相关jar将被放入到web-inf\lib-provided下 -->
        <dependency>
            <groupid>org.springframework.boot</groupid>
            <artifactid>spring-boot-starter-tomcat</artifactid>
            <scope>provided</scope>
        </dependency>
    </dependencies>
    
    <build>
        <plugins>
            <!-- 打包插件 -->
            <plugin>
                <groupid>org.springframework.boot</groupid>
                <artifactid>spring-boot-maven-plugin</artifactid>
            </plugin>
        </plugins>
    </build>
</project>

3. 使用maven打包(clean package)，此war包可以用于传统的部署方式（外部tomcat），也可以直接使用java -jar 的方式运行。