Struts2获取request

1.ActionContext context ;//该方法还可以取得值栈（getValueStack()）,使用push（obj）往值栈中放数据   
2.Map request ;   
3.Map session ;   
4.Map application ;   
5.  
6.//以下初始化方法要放在方法中   
7.context = ActionContext.getContext();   
8.  
9.request = (Map)context.get("request");//获取request   
10.session = context.getSession();//获取session   
11.application = context.getApplication();//获取application   
12.  
13.request.put("req", "request属性");   
14.session.put("ses", "session属性");   
15.application.put("app", "application属性");
1.ActionContext context ;//该方法还可以取得值栈（getValueStack()）,使用push（obj）往值栈中放数据   
2.Map request ;   
3.Map session ;   
4.Map application ;   
5.  
6.//以下初始化方法要放在方法中   
7.context = ActionContext.getContext();   
8.  
9.request = (Map)context.get("request");//获取request   
10.session = context.getSession();//获取session   
11.application = context.getApplication();//获取application   
12.  
13.request.put("req", "request属性");   
14.session.put("ses", "session属性");   
15.application.put("app", "application属性");   




Xml代码 
1.<!--jsp中取值-->  
2.request属性接受:<s:property value="#request.req"/>${requestScope.req}   
3.session属性接受:<s:property value="#session.ses"/>${sessionScope.ses}   
4.application属性接受：<s:property value="#application.app"/>${applicationScope.app}   

    2.1.2 IoC模式



Java代码 
1.//实现接口   
2.public class LoginAction extends ActionSupport implements RequestAware,SessionAware,ApplicationAware   
3.  
4.Map request ;   
5.Map session ;   
6.Map application ;   
7.  
8.public void setRequest(Map request) {   
9.        this.request = request;   
10.}   
11.public void setSession(Map session) {   
12.    this.session = session;   
13.}   
14.public void setApplication(Map application) {   
15.    this.application = application;   
16.}       

2.2 与servlet有关

    2.2.1 非IoC模式



Java代码 
1.HttpServletRequest request;   
2.HttpSession session ;   
3.ServletContext application;   
4.  
5.request = ServletActionContext.getRequest();//获取request   
6.session = request.getSession();   
7.application = ServletActionContext.getServletContext();//获取application   
8.  
9.request.setAttribute("req", "request属性111");   
10.session.setAttribute("ses", "session属性111");   
11.application.setAttribute("app", "application属性111");   

    2.2.1 IoC模式



Java代码 
1.//实现接口   
2.public class LoginAction extends ActionSupport implements ServletRequestAware,ServletContextAware   
3.  
4.  
5.HttpServletRequest request;   
6.ServletContext application;   
7.  
8.  
9.public void setServletRequest(HttpServletRequest request) {   
10.    this.request = request;   
11.}   
12.public void setServletContext(ServletContext application) {   
13.    this.application = application;   
14.}