Struts2学习之二（受管理 BEAN得到 REQUEST与 RESPONSE对象 ）

Struts2学习之二（受管理 BEAN得到 REQUEST与 RESPONSE对象 ）

有两种方法：
1，IOC方式：实现ServletRequestAware与ServletResponseAware接口。
2，非IOC方式：ServletActionContext.getRequest()等静态方法。

public class HelloActionReqAndRes  
  implements ServletRequestAware,ServletResponseAware { 
  //IOC方式得到request实现接口 
  private String hello; 
 private HttpServletRequest request; 
      private HttpServletResponse response;     
 
  public String getHello() { 
    return hello; 
  } 
 
  public void setHello(String hello) { 
    this.hello = hello; 
  } 
 
  public String execute() throws Exception { 
//非IOC方式得到request 
    HttpServletRequest request2 =  
ServletActionContext.getRequest(); 
//ServletActionContext.getResponse(); 
 
    System.out.println("request.getParameter('hello'): "  
+ request.getParameter("hello")); 
    System.out.println("request.getAttribute('hello'): " 
 + request.getAttribute("hello")); 
    this.hello = "Action Change Hello"; 
    System.out.println("request.getAttribute('hello'): "  
+ request.getAttribute("hello")); 
     
    return "ok"; 
  } 
   
  public void setServletRequest(HttpServletRequest request) { 
    this.request = request; 
    System.out.println("setServletRequest"); 
  } 
 
  public void setServletResponse(HttpServletResponse respons) { 
    this.response = respons; 
    System.out.println("setServletResponse");     
  } 
}