配置SpringBoot方便的切换jar和war

女爷i 2022-03-25 03:09 203阅读 0赞

# 配置SpringBoot方便的切换jar和war #

网上关于如何切换，其实说的很明确，本文主要通过profile进行快速切换已实现在不同场合下，用不同的打包方式。

## jar到war修改步骤 ##

*  pom文件修改
    
    1.  packaging配置由jar改为war
    2.  排除tomcat等容器的依赖
    3.  配置web.xml或者无web.xml打包处理
 *  入口类修改
    
    1.  添加ServletInitializer

特别注意：当改成war包的时候，`application.properties`配置的`server.port`和`server.servlet.context-path`就无效了，遵从`war`容器的安排。

## 配置pom ##

### 配置packaging ###

\`\`\`<packaging>$\{pom.package\}</packaging> \`\`\`

### 修改build ###

<finalName>${pom.packageName}</finalName>
    
    
    <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-war-plugin</artifactId>
      <version>3.2.2</version>
      <configuration>
        
        <failOnMissingWebXml>false</failOnMissingWebXml>
      </configuration>
    </plugin>

### 排除容器 ###

\`\`\`<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> \`\`\`

### 配置profile ###

\`\`\`<profiles> <profile>  <id>jar</id> <activation> <activeByDefault>true</activeByDefault> </activation> <properties> <pom.package>jar</pom.package> <pom.packageName>$\{project.artifactId\}-$\{project.version\}</pom.packageName> <pom.profiles.active>dev</pom.profiles.active> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> </dependency> </dependencies> </profile> <profile> <id>war</id> <properties> <pom.package>war</pom.package> <pom.packageName>$\{project.artifactId\}</pom.packageName> <pom.profiles.active>linux</pom.profiles.active> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>4.0.1</version> <scope>provided</scope> </dependency> </dependencies> </profile> </profiles> \`\`\`

## 修改入口类 ##

1.  入口类继承`SpringBootServletInitializer`
2.  重写`configure`方法

使用@Profile注解，当启用war配置的时候，初始化Servlet。

public class Application extends SpringBootServletInitializer {
    
      public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
      }
    
      @Profile(value = {"war"})
      @Override
      protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(Application.class);
      }
    }

来源：[https://segmentfault.com/a/1190000017926997][https_segmentfault.com_a_1190000017926997]

[https_segmentfault.com_a_1190000017926997]: https://segmentfault.com/a/1190000017926997