Unknown run configuration type SpringBootApplicationConfigurationType；Servlet Servlet生命周期、java用swith

@ApiModelProperty("类型 1:省份宏观 2竞争分析 3区域分析 4位置推荐 5:城市宏观")
    private int type;

package polymorphic;
public class Test {
  public static void main(String[] args) {
    show(new Cat());
    show(new Dog());
    System.out.println("-------------");
    Animal a = new Cat();
    a.eat();
    a.eat(3);
    //a.work();
    Cat b = (Cat)a;
    b.sport();
    Animal a2 = new Dog();
    a2.eat();
    //a.work();
    Dog b2 = (Dog)a2;
    b2.sport();   
    Work d = new Work();
    d.work();
    Work f = new Cat2();
    f.work();
  }
  public static void show(Animal a) {
    a.eat();
    if(a instanceof Cat) {
      Cat c = (Cat)a;
      c.sport();
    }else if (a instanceof Dog) {
      Dog c = (Dog)a;
      c.sport();
    }
  }
}
class Work{
  public void work() {
    System.out.println("Catch mice");
  } 
}
abstract class Animal{
  public abstract void eat() ;
  public void eat(int num) {
    System.out.println("[重载1eat rice]");
    for(int i = 0; i < num; i++)
      System.out.println("[重载1eat rice]");
  }
}
 class Cat2 extends Work{
  public void way() {
    System.out.println("重写");
  }
  public void work() {
    System.out.println("[重写 again]");
  }
}
class Cat extends Animal{
   //int num = 2;
  //System.out.println("Hi, I am a Cat.");
  public void eat() {
    System.out.println("1eat fish");
  }
  public void sport() {
    System.out.println("1can flow");
  }
}
class Dog extends Animal{
  //System.out.println("Hi, I am a Dog.");
  public void eat() {
    System.out.println("2eat beef");
  }
  public void sport() {
    System.out.println("2can run");
  }
}