public class BaseContext {  
  
    public static ThreadLocal<Long> threadLocal = new ThreadLocal<>();
  
    public static void setCurrentId(Long id) {  
        threadLocal.set(id);  
    }  
  
    public static Long getCurrentId() {  
        return threadLocal.get();  
    }  
  
    public static void removeCurrentId() {  
        threadLocal.remove();  
    }  
  
}