public static void main(String[] args) {
  SpringApplication app = new SpringApplication(Application.class);
  app.setWebApplicationType(WebApplicationType.NONE);
  app.run(args);
 }

springboot使用第三方tomcat

1.改pom

因為代碼用到了servlet的api，不加會報錯。剔除web模塊中的tomcat

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
			<exclusions>
                <exclusion>
                    <artifactId>spring-boot-starter-tomcat</artifactId>
                    <groupId>org.springframework.boot</groupId>
                </exclusion>
            </exclusions>
		</dependency>
			
			 <!--添加servlet的依賴-->
	    <dependency>
	      <groupId>javax.servlet</groupId>
	      <artifactId>javax.servlet-api</artifactId>
	      <scope>provided</scope>
	    </dependency>

插件注釋原先的springboot-maven插件，改為war

在warName 可以改名字，到時候打出的包名就是這個

		<plugins>
			<!-- <plugin>
		  		<groupId>org.springframework.boot</groupId>
		 		<artifactId>spring-boot-maven-plugin</artifactId>
		  	</plugin> -->
		  	
	  		<plugin>
			    <groupId>org.apache.maven.plugins</groupId>
			    <artifactId>maven-war-plugin</artifactId>
			    <configuration>
			        <warName>springboot</warName>
			    </configuration>
			</plugin>

改打包方式

	<packaging>war</packaging>

2.再加一個啟動類

繼承SpringBootServletInitializer 重寫configure方法

@SpringBootApplication
@Configuration  
@ComponentScan(basePackages="com.jubao.dling")   //默認掃描是當(dāng)前包下的路徑
@EnableAutoConfiguration 
public class DlingApplication  extends SpringBootServletInitializer{ 
	public static void main(String[] args) {
		SpringApplication.run(DlingApplication.class, args);
	}	
	 @Override
	    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
	        return application.sources(DlingApplication.class);
	    } 
}

不必原來的啟動類刪除，因為平常開發(fā)時，肯定還是使用內(nèi)置的tomcat，開發(fā)時將剔除tomcat的標(biāo)簽注釋掉