RequestProcessor 插件

public class MyRequestProcessor extends RequestProcessor {
 public MyRequestProcessor() {

 }
 
 每执行一个 excute() 方法时该方法都会被调用
 public boolean processPreprocess(HttpServletRequest request,
   HttpServletResponse response) {
  System.out.println("this is MyRequestProcessor!!!!!!!!!!!!!!!!!!");
  return true;
 }
}