SpringBoot打包War

Spring

一、修改pom.xml文件将默认的jar方式改为war：

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<groupId>com.example</groupId>
<artifactId>application</artifactId>
<version>0.0.1-SNAPSHOT</version>
<!--默认为jar方式-->
<!--<packaging>jar</packaging>-->
<!--改为war方式-->
<packaging>war</packaging>

二、排除内置的Tomcat容器（两种方式都可）：

1.排除spring-boot-starter-web中的Tomcat

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<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>

2.添加依赖

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<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-tomcat</artifactId>
    <!--打包的时候可以不用包进去，别的设施会提供。事实上该依赖理论上可以参与编译，测试，运行等周期。
        相当于compile，但是打包阶段做了exclude操作-->
    <scope>provided</scope>
</dependency>

三、继承org.springframework.boot.web.servlet.support.SpringBootServletInitializer，实现configure方法：

1.方式一，启动类继承SpringBootServletInitializer实现configure：

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@SpringBootApplication
public class Application extends SpringBootServletInitializer {

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

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

2.方式二，新增加一个类继承SpringBootServletInitializer实现configure：

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public class ServletInitializer extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        //此处的Application.class为带有@SpringBootApplication注解的启动类
        return builder.sources(Application.class);
    }

}