Playframework：如何禁用特定操作的會話/ Cookie？

Question

對於特定的控制器操作，我想關閉cookie。我試圖刪除Cookie Map，但這似乎不起作用。我需要徹底刪除除我自己以外的所有響應標題。

任何想法？

Answer 1

我設法用包裝與response.current.set(new CookieLessResponseWrapper(response.current()))包裝響應。適合我。

如果有人感興趣，以下是Response包裝的代碼。

package helpers; 

import play.mvc.Http.Response; 

public class CookieLessResponseWrapper extends Response { 
    private Response wrappedResponse; 

    public CookieLessResponseWrapper(Response response) { 
     this.wrappedResponse = response; 
    } 

    @Override 
    public void accessControl(String allowOrigin, boolean allowCredentials) { 
     wrappedResponse.accessControl(allowOrigin, allowCredentials); 
    } 

    @Override 
    public void accessControl(String allowOrigin, String allowMethods, 
      boolean allowCredentials) { 
     wrappedResponse.accessControl(allowOrigin, allowMethods, allowCredentials); 
    } 

    @Override 
    public void accessControl(String allowOrigin) { 
     wrappedResponse.accessControl(allowOrigin); 
    } 

    @Override 
    public void cacheFor(String etag, String duration, long lastModified) { 
     wrappedResponse.cacheFor(etag, duration, lastModified); 
    } 

    @Override 
    public void cacheFor(String duration) { 
     wrappedResponse.cacheFor(duration); 
    } 

    @Override 
    public String getHeader(String name) { 
     return wrappedResponse.getHeader(name); 
    } 

    @Override 
    public void print(Object o) { 
     wrappedResponse.print(o); 
    } 

    @Override 
    public void removeCookie(String name) { 
     wrappedResponse.removeCookie(name); 
    } 

    @Override 
    public void reset() { 
     wrappedResponse.reset(); 
    } 

    @Override 
    public void setContentTypeIfNotSet(String contentType) { 
     wrappedResponse.setContentTypeIfNotSet(contentType); 
    } 

    @Override 
    public void setCookie(String name, String value, String domain, 
      String path, Integer maxAge, boolean secure, boolean httpOnly) { 
    } 

    @Override 
    public void setCookie(String name, String value, String domain, 
      String path, Integer maxAge, boolean secure) { 
    } 

    @Override 
    public void setCookie(String name, String value, String duration) { 
    } 

    @Override 
    public void setCookie(String name, String value) { 
    } 

    @Override 
    public void setHeader(String name, String value) { 
     wrappedResponse.setHeader(name, value); 
    } 

} 

Answer 2

您應該能夠清除所有的頭，在你的行動，以：

Http.Response.current().reset(); 

Answer 3

有想法，該會議是一個Cookie。我不相信你可以刪除它。

Answer 4

我找到了this解決方法，當谷歌搜索這個問題。它的功能與您嘗試使用的一樣簡單，刪除了Cookie映射，但是它使用@Finally註釋的方法完成。

我相信餅乾地圖是在render()之後填寫的，但在任何@Finally註解類之前。

積分亞歷克斯·賈維斯在谷歌網上論壇，代碼被複制以供參考：

/** 
* Removes cookies from all responses. 
* 
* This is because cookies are not required in stateless webservice and 
* we don't want to send any unnecessary information to the client. 
* 
* @author Alex Jarvis 
*/ 
public class NoCookieFilter extends Controller { 

     /** An empty cookie map to replace any cookies in the response. */ 
     private static final Map<String, Http.Cookie> cookies = new HashMap<String, Http.Cookie>(0); 

     /** 
     * When the configuration property 'cookies.enabled' equals false, 
     * this Finally filter will replace the cookies in the response with an empty Map. 
     */ 

     @Finally 
     protected static void removeCookies() { 
      boolean cookiesEnabled = Boolean.parseBoolean(Play.configuration.getProperty("cookies.enabled")); 
      if (!cookiesEnabled) { 
        response.cookies = cookies; 
      } 
     } 

} 

用法：對於任何控制器，你想成爲「無Cookie」與

@With將其標註爲（NoCookieFilter的.class）

（測試在播放1.2.5）

Answer 5

如何爲每個請求丟棄整個會話作爲解決方法？

丟棄整個會話

Ok("Bye").withNewSession 

https://www.playframework.com/documentation/2.3.x/ScalaSessionFlash#Discarding-the-whole-session