我的webwork2的cookie拦截器

webwork中没有cookie的映射,只有session的映射. 参考了moxie的cookie拦截器,自己写了一个拦截器,不知道是不是能用 :P

拦截器代码如下:

package com.cnscud.util.interceptor;   import javax.servlet.http.Cookie;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse; import com.cnscud.util.WebCookies;

import com.opensymphony.webwork.ServletActionContext;

import com.opensymphony.xwork.ActionInvocation;

import com.opensymphony.xwork.interceptor.AroundInterceptor;

import com.opensymphony.xwork.util.OgnlValueStack; public class WebCookiesInterceptor extends AroundInterceptor

{     protected void after(ActionInvocation arg0, String arg1) throws Exception

    {     }     protected void before(ActionInvocation arg0) throws Exception

    {

        HttpServletResponse response = ServletActionContext.getResponse();

        HttpServletRequest request = ServletActionContext.getRequest();

        Cookie[] cookies = request.getCookies();         if (cookies != null && cookies.length > 0)

        {

            final OgnlValueStack stack = ServletActionContext.getContext().getValueStack();

            WebCookies aWCs = new WebCookies(request,response,cookies);                        stack.setValue(WebCookies.KEY_WEBCOOKIES,aWCs);

        }     } }

WebCookies的代码如下:  

package com.cnscud.util; import java.util.HashMap;

import java.util.Map; import javax.servlet.http.*;

public class WebCookies

{    

    public static final String KEY_WEBCOOKIES = "webCookies";     private HttpServletRequest request;     private HttpServletResponse response;     private Cookie[] cookies;     private Map cookieMap = new HashMap(20);    

    public WebCookies(HttpServletRequest request, HttpServletResponse response,

            Cookie[] cookies)

    {

        this.request = request;

        this.response = response;         setCookies(cookies);

    }    

    public void setCookies(Cookie[] cookies)

    {

        cookieMap.clear();

        this.cookies = cookies;         for (int i = 0; i < cookies.length; i++)

        {

            Cookie acookie = cookies[i];             cookieMap.put(acookie.getName(), acookie);

        }     }    

    public Cookie[] getCookies()

    {

        return cookies;

    }    

    public Cookie getCookie(String sKey)

    {

        if (null == cookieMap)

        {

            return null;

        }         Object ac = cookieMap.get(sKey);

        if (null != ac)

        {

            return (Cookie) ac;

        }         return null;

    }     public Cookie get(String sKey)

    {

        return getCookie(sKey);

    }

    public Map getCookieMap()

    {

        return cookieMap;

    }    

    public void addCookie(Cookie aCookie)

    {

        //调用response的addCookie

        if (null != response)

        {

            response.addCookie(aCookie);

        }

    } }

  基础Action的代码如下: (其他action继承此Action即可)  

package test; import com.cnscud.util.WebCookies;

import com.opensymphony.xwork.ActionSupport;

public class CookieAction extends ActionSupport

{     protected WebCookies webcookies;     public void setWebCookies(WebCookies webcookies)

    {

        this.webcookies = webcookies;

    }

    public WebCookies getWebCookies()

    {

        return webcookies;

    }

    }

Xwork的配置如下,可以根据自己的需求改动,我是所有action都截取cookie  

<!DOCTYPE xwork PUBLIC "-//OpenSymphony Group//XWork 1.0//EN" " http://www.opensymphony.com/xwork/xwork-1.0.dtd"> <xwork>  <include file="webwork-default.xml"/>

 <package name="helloWorld" extends="webwork-default">

     <interceptors>

      <interceptor name="webCookiesInterceptor" class="com.cnscud.util.interceptor.WebCookiesInterceptor" />             <interceptor-stack name="cookieStatck">

                <interceptor-ref name="webCookiesInterceptor"/>

                <interceptor-ref name="defaultStack"/>

            </interceptor-stack>

     </interceptors>   <default-interceptor-ref name="cookieStatck" />      <action name="startCookie" class="test.StartAction">

      <result name="success" type="dispatcher">

    <param name="location">/start.jsp</param>

   </result>

     </action>

     <action name="resultCookie" class="test.ResultAction">

      <result name="success" type="dispatcher">

    <param name="location">/result.jsp</param>

   </result>

     </action>  </package>

</xwork>  

result的页面:  

<%@ page contentType="text/html;charset=UTF-8" %>

<%@ taglib uri="webwork" prefix="ww" %>

<html>

  <head>   

    <title>My JSP 'result.jsp' result page</title>   

  </head>

  <body>

  cookie Hello:

  <ww:property   value="webCookies.cookieMap['Hello'].value" />

  <br><br>

   Cookie Hello2:

  <ww:property   value="webCookies.cookieMap.Hello2.value" />

  <br><br>

  testValue:<ww:property   value="testValue" />

  <br><br>

  </body>

</html>

ResultAction代码如下:  

package test;

import javax.servlet.http.Cookie;

public class ResultAction extends CookieAction

{

    private String testValue;

    public String execute() throws Exception

    {

        //for test

        Cookie[] cs = webcookies.getCookies();     

        return SUCCESS;

    }

    public void setTestValue(String testValue)

    {

        this.testValue = testValue;

    }

    public String getTestValue()

    {

        return testValue;

    }

}

StartAction的代码如下

package test; import javax.servlet.http.Cookie;

public class StartAction extends CookieAction

{       public String execute() throws Exception

    {

        Cookie ack = new Cookie("Hello","World222");

        webcookies.addCookie(ack);

        return SUCCESS;

    }

}