【Struts框架】第一节Action-struts访问request等引用方法三和四

方法三：

取得真实类型的request,session,application
用得比较少的方法：

package cn.edu.hpu.getValue;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class LoginAction3 extends ActionSupport {
	
	private HttpServletRequest request;
	private HttpSession session;
	private ServletContext application;
	
	public LoginAction3(){
		request=ServletActionContext.getRequest();
		session=request.getSession();
		application=session.getServletContext();
	}
	
	public String execute(){
		request.setAttribute("r1", "r1");
		session.setAttribute("s1", "s1");
		application.setAttribute("a1", "a1");
		return SUCCESS;
	}
}

取得真实类型的request,session,application
用得比较少的方法：

package cn.edu.hpu.getValue;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;


import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.ServletRequestAware;


import com.opensymphony.xwork2.ActionSupport;


public class LoginAction4 extends ActionSupport implements ServletRequestAware{
	
	private HttpServletRequest request;
	private HttpSession session;
	private ServletContext application;
	
	public String execute(){
		request.setAttribute("r1", "r1");
		session.setAttribute("s1", "s1");
		application.setAttribute("a1", "a1");
		return SUCCESS;
	}


	@Override
	public void setServletRequest(HttpServletRequest request) {
		this.request=request;
		this.session=request.getSession();
		this.application=session.getServletContext();
		
	}
	
	
}