SpringBoot关闭日志logo图像_springboot启动日志关闭

SpringBo关闭日志logo图像

主方法

springApplication.run(DemoApplication.class,args);

点击run方法进去可以看到

public static ConfigurableApplicationContext run(Class<?> primarySource, String... args) {
    return run(new Class[]{primarySource}, args);
}

调用下面方法

public static ConfigurableApplicationContext run(Class<?>[] primarySources, String[] args) {
    return (new SpringApplication(primarySources)).run(args);
}

然后调用 SpringApplication  找到构造方法

public SpringApplication(ResourceLoader resourceLoader, Class... primarySources) {
    this.sources = new LinkedHashSet();
    this.bannerMode = Mode.CONSOLE;
    this.logStartupInfo = true;
    this.addCommandLineProperties = true;
    this.addConversionService = true;
    this.headless = true;
    this.registerShutdownHook = true;
    this.additionalProfiles = new HashSet();
    this.isCustomEnvironment = false;
    this.resourceLoader = resourceLoader;
    Assert.notNull(primarySources, "PrimarySources must not be null");
    this.primarySources = new LinkedHashSet(Arrays.asList(primarySources));
    this.webApplicationType = WebApplicationType.deduceFromClasspath();
    this.setInitializers(this.getSpringFactoriesInstances(ApplicationContextInitializer.class));
    this.setListeners(this.getSpringFactoriesInstances(ApplicationListener.class));
    this.mainApplicationClass = this.deduceMainApplicationClass();
}

this.bannerMode = Mode.CONSOLE;   logo处于打开状态

找到成员变量

private Mode bannerMode;
 

找到类Mode类

Banner 接口

@FunctionalInterface
public interface Banner {
    void printBanner(Environment environment, Class<?> sourceClass, PrintStream out);
 
    public static enum Mode {
        OFF,
        CONSOLE,
        LOG;
 
        private Mode() {
        }
    }
}

将状态设置OFF

SpringApplication springApplication = new SpringApplication(DemoApplication.class);
springApplication.setBannerMode(Banner.Mode.OFF);
springApplication.run(args);

运行