Action中使用request、response

package com.yuanit.app.action;

import com.opensymphony.xwork2.ActionSupport;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts2.ServletActionContext;
import javax.servlet.http.HttpServletResponse;

public class AdminAction extends ActionSupport {
 public String username;
 
 public String password;

 public String goLogin() throws Exception{
  String go = null;
  HttpServletRequest request = ServletActionContext.getRequest();
  HttpServletResponse response = ServletActionContext.getResponse();
  request.getRequestDispatcher("login.ftl").forward(request, response);
  
  return go;
 }