代码块记录

Timer 延迟执行，

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java.util.Timer timer=new java.util.Timer();//实例化Timer类 timer.schedule(new java.util.TimerTask(){ public void run(){     com.esms.transfer.utils.ServerApp.transfer();     this.cancel(); } },1000);//1000毫秒

Thread

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new Thread(new Runnable() {     @Override     public void run() {       }} ).start();

 

InitializingBean afterPropertiesSet   Spring启动后执行

 

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@Component public class MyInitializingBean implements org.springframework.beans.factory.InitializingBean {      @Override    public void afterPropertiesSet() throws Exception {    } }<br><br>

 

Springboot中 根据 上下文获取对应的Bean

 

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import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; import org.springframework.stereotype.Component;   @Component public class ApplicationContextUtil implements ApplicationContextAware {       private static ApplicationContext applicationContext = null;       @Override     public void setApplicationContext(ApplicationContext applicationContext) throws org.springframework.beans.BeansException {         if(this.applicationContext == null) {             this.applicationContext = applicationContext;         }     }       public static ApplicationContext getApplicationContext() {         return applicationContext;     }       public static <T> T getBean(Class<T> clazz) {         return getApplicationContext().getBean(clazz);     } }<br>// 使用XXX xxx = ApplicationContextUtil.getBean(XXXX.class);

在SpringBoot启动类中获取系统参数，方法其一

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public static String params; @org.springframework.beans.factory.annotation.Autowired Environment environment; @javax.annotation.PostConstruct//初始化调用 public  void init(){     this.params = environment.getProperty("xxx.xx.x");   }