springboot打包成war包

pom.xml中

war

<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->

<plugins>
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>2.4.2</version>
        <configuration>
            <skipTests>true</skipTests>
        </configuration>
    </plugin>
</plugins>

添加依賴，打包時檢查這兩個依賴是否存在，不存在的話添加一下

<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>

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

啓動類

@EnableTransactionManagement
@ServletComponentScan
@SpringBootApplication
public class SyscloudApplication extends SpringBootServletInitializer {

@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
    return builder.sources(SyscloudApplication.class);
}

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

}
然後開始打包，修改後由於沒有去掉自帶的tomcat，所以項目可以正常通過springboot啓動

要去掉tomcat時，將pom.xml文件中的web依賴改爲：

<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<!-- 移除嵌入式tomcat插件 -->
<exclusions>
    <exclusion>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
    </exclusion>
</exclusions>