package com.lsp.lookweb;import java.util.Map;import org.apache.struts2.interceptor.ApplicationAware;import org.apache.struts2.interceptor.RequestAware;import org.apache.struts2.interceptor.SessionAware;import com.opensymphony.xwork2.ActionSupport;/** *Ioc(控制反转)--推荐使用 * 让Action类实现RequestAware、SessionAware、ApplicationAware接口， * 然后重写他们的set方法(setRequest、setSession、setApplication)， * 通过依赖注入、控制反转(原来自己控制，现在由别人来控制值。 */public class LookAction2 extends ActionSupport implements RequestAware,        SessionAware, ApplicationAware {    private Map
     
       session;    private Map
      
        request;    private Map
       
         application;    public String LookAction2_() {        request.put("r1", "r11");        session.put("s1", "s11");        application.put("a1", "a11");        request.put("r2", "r22");        return "LookAction2";    }    @Override    public void setRequest(Map
        
          req) {        // TODO Auto-generated method stub        this.request = req;    }    @Override    public void setSession(Map
         
           sess) {        // TODO Auto-generated method stub        this.session = sess;    }    @Override    public void setApplication(Map
          
            app) { this.application = app; }}