spring boot使用war包发布时候注意

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@SpringBootApplication
public class DemoApplication {

	protected SpringApplicationBuilder configure(SpringApplicationBuilder builder)
	  {
	    return builder.sources(new Class[] { DemoApplication.class });
	  }
	
	public static void main(String[] args) {
		ServletConfig.class.getName();
		ApplicationContext.class.getName();
		SpringApplication.run(DemoApplication.class, args);
	}
}

发布war包直接用于tomcat运行时，加入以上代码，否则不能启动