zoukankan      html  css  js  c++  java
  • struts2获取request、session、application的四种方式

    struts2获取request、session、application的四种方式

    //获取map类型的request、session、application

    public class LoginAction1 extendsActionSupport {

    private Map request;

    private Map session;

    private Map application;

    publicLoginAction1() {

    request= (Map)ActionContext.getContext().get("request");

    session= ActionContext.getContext().getSession();

    application= ActionContext.getContext().getApplication();

    }

    publicString execute() {

    request.put("r1","r1");

    session.put("s1","s1");

    application.put("a1","a1");

    returnSUCCESS;

    }

    }

    //采用接口方式获得map类型的request、session、application

    public class LoginAction2 extendsActionSupport implements RequestAware,SessionAware, ApplicationAware {

    private Map<String, Object> request;

    private Map<String, Object> session;

    private Map<String, Object> application;

    //DIdependency injection

    //IoCinverse of control

    publicString execute() {

    request.put("r1","r1");

    session.put("s1","s1");

    application.put("a1","a1");

    returnSUCCESS;

    }

    @Override

    publicvoid setRequest(Map<String, Object> request) {

    this.request= request;

    }

    @Override

    publicvoid setSession(Map<String, Object> session) {

    this.session= session;

    }

    @Override

    publicvoid setApplication(Map<String, Object> application) {

    this.application= application;

    }

    }

    //获取Http类型的request、session、application

    public class LoginAction3 extendsActionSupport {

    private HttpServletRequest request;

    private HttpSession session;

    private ServletContext application;

    publicLoginAction3() {

    request= ServletActionContext.getRequest();

    session= request.getSession();

    application= session.getServletContext();

    }

    publicString execute() {

    request.setAttribute("r1","r1");

    session.setAttribute("s1","s1");

    application.setAttribute("a1","a1");

    returnSUCCESS;

    }

    }

    //采用接口方式获取Http类型的request、session、application

    public class LoginAction4 extendsActionSupport implements ServletRequestAware {

    private HttpServletRequest request;

    private HttpSession session;

    private ServletContext application;

    publicString execute() {

    request.setAttribute("r1","r1");

    session.setAttribute("s1","s1");

    application.setAttribute("a1","a1");

    returnSUCCESS;

    }

    @Override

    publicvoid setServletRequest(HttpServletRequest request) {

    this.request= request;

    this.session= request.getSession();

    this.application= session.getServletContext();

    }

    }

  • 相关阅读:
    C Primer+Plus(十七)高级数据表示 复习题
    C Primer+Plus(十七)高级数据表示(三)
    C Primer+Plus(十七)高级数据表示(二)
    C Primer+Plus(十七)高级数据表示(一)
    C Primer+Plus(十四)编程练习
    AI时代什么最重要,什么是AI时代的基础资产?
    AI在哪些领域里都有哪些应用?
    什么是AI、大数据、深度学习......它们之间什么关系?
    说话的套路
    全书结构
  • 原文地址:https://www.cnblogs.com/juepei/p/3798902.html
Copyright © 2011-2022 走看看