Spring Boot项目打包为war项目

springboot 带有内置Tomcat 服务器，可以直接将项目打包成jar运行，但是有时候我们需要将项目打包为war文件，放到web服务器中部署运行，下面是将springboot项目部署为war项目的步骤：

1.修改pom.xml中的packaging标签值为war

2.新建一个继承于SpringBootServletInitializer的子类（与Spring Boot的启动类相似），代码如下：

package com.aci;
import org.springframework.boot.SpringApplication;
        import org.springframework.boot.autoconfigure.SpringBootApplication;
        import org.springframework.boot.builder.SpringApplicationBuilder;
        import org.springframework.boot.web.support.SpringBootServletInitializer;
        import org.springframework.cache.annotation.EnableCaching;
        import org.springframework.scheduling.annotation.EnableScheduling;

@SpringBootApplication
@EnableScheduling
@EnableCaching
public class WebApplication extends SpringBootServletInitializer{

    public static void main(String[] args) {
        SpringApplication.run(WebApplication.class, args);
    }
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(WebApplication.class);
    }
}

 3.修改pom.xml文件的properties节点的start-class子节点的值为上面创建的类，代码如下：

<properties>
        <start-class>com.aci.WebApplication</start-class>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <springboot.version>1.5.9.RELEASE</springboot.version>
        <poi.version>3.15</poi.version>
    </properties>