Struts2访问或添加request等属性

action：

public String scope() throws Exception{
   ActionContext ctx = ActionContext.getContext();
   ctx.getApplication().put("app", "应用范围");//往ServletContext里放入app
   ctx.getSession().put("ses", "session范围");//往session里放入ses
   ctx.put("req", "request范围");//往request里放入req
   return "scope";
}
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jsp：

 <body>
    ${applicationScope.app} <br>
    ${sessionScope.ses}<br>
    ${requestScope.req}<br>
 </body>
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获取HttpServletRequest / HttpSession / ServletContext / HttpServletResponse对象

方法一，通过ServletActionContext.类直接获取：

  
public String rsa() throws Exception{
    HttpServletRequest request = ServletActionContext.getRequest();
    ServletContext servletContext = ServletActionContext.getServletContext();
    request.getSession()     
    HttpServletResponse response = ServletActionContext.getResponse();
    return "scope";
}
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方法二，实现指定接口，由struts框架运行时注入：
public class HelloWorldAction implements ServletRequestAware, ServletResponseAware, ServletContextAware{
    private HttpServletRequest request;
    private ServletContext servletContext;
    private HttpServletResponse response;
    public void setServletRequest(HttpServletRequest req) {
        this.request=req;
    }
    public void setServletResponse(HttpServletResponse res) {
        this.response=res;
    }
    public void setServletContext(ServletContext ser) {
        this.servletContext=ser;
    }
}
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posted @ 2012-03-22 19:10  haiwei.sun  阅读(204)  评论(0)  编辑  收藏  举报
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