第一步：修改packaging为war包。

<groupId>com.dashuai</groupId> <artifactId>dadminboot</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <name>DAdminBoot</name>

第二步：剔除掉默认的tomcat

<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>

第三步：如果项目中依旧使用了jsp的话，请设定如下

<dependency>     <groupId>org.apache.tomcat.embed</groupId>     <artifactId>tomcat-embed-jasper</artifactId>     <scope>provided</scope> <!-- 如果不注释，你会发现main线程运行报404错误，必须使用 spring-boot:run这个命令运行才行。所以我们注释掉--> </dependency>

加上scope为provided，尽管项目在运行的时候，不能使用main线程，但打包的时候，请加上scope。build和打包jar是一样的，如下。那么pom文件的就算OK了。

<build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <version>1.4.2.RELEASE</version> <configuration> <fork>true</fork> <mainClass>com.dashuai.dadminboot.DAdminBootApplication</mainClass> </configuration> <executions> <execution> <goals> <goal>repackage</goal> </goals> </execution> </executions> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <configuration> <failOnMissingWebXml>false</failOnMissingWebXml> </configuration> </plugin> </plugins> <resources> <!-- 打包时将jsp文件拷贝到META-INF目录下--> <resource> <!-- 指定resources插件处理哪个目录下的资源文件 --> <directory>src/main/webapp</directory> <!--注意此次必须要放在此目录下才能被访问到--> <targetPath>META-INF/resources</targetPath> <includes> <include>**/**</include> </includes> </resource> <resource> <directory>src/main/resources</directory> <includes> <include>**/**</include> </includes> <filtering>false</filtering> </resource> </resources> </build>

最后一步：配置启动类，application

@EnableTransactionManagement @EnableCaching @SpringBootApplication public class DAdminBootApplication extends SpringBootServletInitializer{ public static void main(String[] args) { SpringApplication.run(DAdminBootApplication.class, args); } @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) { return builder.sources(DAdminBootApplication.class); } }

打包：maven clean，maven package 打包

文章转载：

IntelliJ IDEA Spring Boot 打成war包

https://blog.csdn.net/u011998835/article/details/78389740

IntelliJ IDEA Spring Boot 打成jar包

http://blog.csdn.net/u011998835/article/details/78386557