责任链模式与filter过滤链

class MyRequest {
}

class MyResponse {
}
interface  Filter{
    void doFilter(MyRequest myRequest, MyResponse myResponse, ApplicationFilterChain filterChain);
}

class ApplicationFilterChain   {
    private Integer index = 0;
    private List<Filter> filters=new ArrayList<>();
    public void addFilter(Filter filter){
        this.filters.add(filter);
    }
    public void doFilter(MyRequest myRequest, MyResponse myResponse) {
        if(index<this.filters.size()){
            Filter filter=this.filters.get(index++);
            filter.doFilter(myRequest, myResponse, this);
        }else{
            System.out.println("-------------过滤脸执行结束！------------------");
        }
    }
}
@SpringBootTest
public class FilterchainTests {
    @Test
    public void method() {
        Filter encodingFilter=new Filter() {
            @Override
            public void doFilter(MyRequest myRequest, MyResponse myResponse, ApplicationFilterChain filterChain) {
                System.out.println("---------------encodingFilter执行了---------------");
                filterChain.doFilter(myRequest,myResponse);
            }
        };
        Filter requestcontextFilter=new Filter() {
            @Override
            public void doFilter(MyRequest myRequest, MyResponse myResponse, ApplicationFilterChain filterChain) {
                System.out.println("---------------requestcontextFilter执行了---------------");
                filterChain.doFilter(myRequest,myResponse);
            }
        };
        ApplicationFilterChain applicationFilterChain=new ApplicationFilterChain();
        applicationFilterChain.addFilter(encodingFilter);
        applicationFilterChain.addFilter(requestcontextFilter);
        applicationFilterChain.doFilter(new MyRequest(), new MyResponse());
    }
}