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

Posted 2023-01-10

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");