Spring Boot之jar包改成war包模式

2021-03-28

Spring Boot之jar包改成war包模式。一般用Springboot 创建项目后运行生成的默认为jar，有时候部署项目需要打包成war ,使用一下步骤即可转变。
1、修改pom文件

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<!--<packaging>war</packaging>--> 

<packaging>jar</packaging>

2、如果没有web.xml 需要增加该配置

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<properties>
    <failOnMissingWebXml>false</failOnMissingWebXml>
</properties>

3、修改依赖

<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>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-tomcat</artifactId>
    <scope>provided</scope>
</dependency>
<dependency>
    <groupId>org.apache.tomcat</groupId>
    <artifactId>tomcat-servlet-api</artifactId>
    <version>7.0.42</version>
    <scope>provided</scope>
</dependency>

4、配置war包名称

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<build>
    <finalName>aicheng</finalName>
  </build>

5、主方法继承SpringBootServletInitializer

public class AichengApplication extends SpringBootServletInitializer {
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(TestApplication.class);
    }

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

6、执行maven 生成war