springboot 设置web和非web启动

老版本:

#server config
#web_environment是否是web项目
spring.main.web_environment=true
#是否加载springboot banner
spring.main.show_banner=false

现版本:

#server config
#是否设定web应用,none-非web,servlet-web应用
spring.main.web-application-type=servlet
#加载springboot banner的方式:off-关闭,console-控制台,log-日志
spring.main.banner-mode=off

WebApplicationType原理:

1 public SpringApplication(ResourceLoader resourceLoader, Class<?>... primarySources) {
2     this.resourceLoader = resourceLoader;
3     Assert.notNull(primarySources, "PrimarySources must not be null");
4     this.primarySources = new LinkedHashSet<>(Arrays.asList(primarySources));
5     this.webApplicationType = deduceWebApplicationType();
6     setInitializers((Collection) getSpringFactoriesInstances(ApplicationContextInitializer.class));
7     setListeners((Collection) getSpringFactoriesInstances(ApplicationListener.class));
8     this.mainApplicationClass = deduceMainApplicationClass();
9 }

deduceWebApplicationType()推断当前环境是哪种Web环境(Servlet、Reactive),或者不是Web环境,判断逻辑为Classpath是够有以下类:
存在org.springframework.web.reactive.DispatcherHandler且不存在org.springframework.web.servlet.DispatcherServlet为WebApplicationType.REACTIVE;
同时存在javax.servlet.Servlet、org.springframework.web.context.ConfigurableWebApplicationContext 为WebApplicationType.SERVLET;
否则为 WebApplicationType.NONE
在这里this.webApplicationType = WebApplicationType.SERVLET;

所谓的banner就是控制台打印的一堆线组成的spring

 

posted @ 2022-11-16 19:10  Boblim  阅读(780)  评论(0编辑  收藏  举报