代码块记录

Timer 延迟执行，

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

new Thread(new Runnable() { 
    @Override 
    public void run() {

    }}
).start();

 

InitializingBean afterPropertiesSet   Spring启动后执行

 

@Component
public class MyInitializingBean implements org.springframework.beans.factory.InitializingBean {

   @Override
   public void afterPropertiesSet() throws Exception {
   }
}

 

Springboot中 根据 上下文获取对应的Bean

 

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);
    }
}
// 使用XXX xxx = ApplicationContextUtil.getBean(XXXX.class);

在SpringBoot启动类中获取系统参数，方法其一

    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");

    }