struts2 session、request、response

来源：互联网发布：淘宝动态评分如何加分编辑：程序博客网时间：2024/04/30 05:58

struts2 的action没有直接内嵌 session、request、response 对象，如需访问，则通过ServletActionContext 来进行访问。请参考：

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

public class LoginAction extends ActionSupport {

//错误方法：直接在类体中获取是错误的，因为这样无法关联请求上下文:
//HttpServletRequest request = ServletActionContext.getRequest();
//HttpServletResponse response = ServletActionContext.getResponse();
//HttpSession session = request.getSession();

//正确方法：在execute()方法体中获取 request 、response 、session
public String execute() throws Exception {
     HttpServletRequest request = ServletActionContext.getRequest();
      HttpServletResponse response = ServletActionContext.getResponse();
     HttpSession session = request.getSession();

return SUCCESS;
}

}