webwork的拦截器不能取cookie？？
最近发现一个问题，webwork在拦截器里用HttpServletRequest是获取不到cookie的，但是在action里却能够取到cookie。

情况是这样：

拦截器的代码：
public String intercept(ActionInvocation arg0){
String result = null;
HttpServletRequest request = ServletActionContext.getRequest();
Cookie cookies[] = request.getCookies();
Cookie sCookie = null;
String value = null;
if (cookies != null) {
for (int i = 0; i < cookies.length; i++) {
sCookie = cookies[i];
if (sCookie.getName().equals("cookieName")) {
value = sCookie.getValue();
}
}
before(arg0);
result = arg0.invoke();
after(arg0, result);
return result;
}
这里的value的结果是null。

但是在action里，用同样的代码是可以获取到值的：
public String execute(){
javax.servlet.http.Cookie cookies[] = request.getCookies();
javax.servlet.http.Cookie sCookie = null;
String value = null;
if (cookies != null) {
for (int i = 0; i < cookies.length; i++) {
sCookie = cookies[i];
if (sCookie.getName().equals("cookieName")) {
value = sCookie.getValue();
}
}
}
return SUCCESS;
}
此时的value是可以取到值的。

设置cookie的代码：
Cookie cookie_name =new Cookie("cookieName",value);
cookie_name.setPath("/");
cookie_name.setMaxAge(365*24*60*60);
response.addCookie(cookie_name);

难道webwork拦截器里的request处理问题？或者我这种拦截器里获取cookie的写法有问题？

[解决办法]
不懂，帮你搜了一下，希望有帮助。。

http://www.opensymphony.com/webwork/wikidocs/Cookie%20Interceptor.html
[解决办法]
可以的我这边测试是可以的，是不是你配置的问题
1、STRTUS有自定义的COOKIE拦截器，你可以参考下它的实现
org.apache.struts2.interceptor.CookieInterceptor
2、以下是我的测试代码

Java code

struts.xml配置文件<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE struts PUBLIC        "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"        "http://struts.apache.org/dtds/struts-2.0.dtd"><struts>    <constant name="struts.devMode " value="true"></constant>    <constant name="struts.objectFactory" value="org.apache.struts2.impl.StrutsObjectFactory"></constant>    <package name="zhangyz" extends="struts-default" namespace="/zhangyz">        <interceptors>            <interceptor name="testInterceptor" class="com.zhangyz.tools.TestInterceptor" />            <interceptor-stack name="testStack">                <interceptor-ref name="defaultStack" />                <interceptor-ref name="testInterceptor" />            </interceptor-stack>        </interceptors>        <action name="userBeanTest" class="com.zhangyz.tools.UserBeanTest"            method="method1">            <interceptor-ref name="testStack"></interceptor-ref>            <result name="success">/index.jsp</result>        </action>    </package></struts><!-----JAVA类如下-----!>package com.zhangyz.tools;import java.util.Arrays;import javax.servlet.http.Cookie;import javax.servlet.http.HttpServletResponse;import org.apache.log4j.Logger;import org.apache.struts2.ServletActionContext;public class UserBeanTest {    private static Logger logger = Logger.getLogger(UserBeanTest.class);    private Integer id = null;    public String method1() {        Cookie[] cookies = ServletActionContext.getRequest().getCookies();        if (cookies != null) {            for (int i = 0; i < cookies.length; i++) {                logger.info("ACTION println cookies name "                        + cookies[i].getName() + " value "                        + cookies[i].getValue());            }        }        HttpServletResponse response = ServletActionContext.getResponse();        response.addCookie(new Cookie("test", "add"                + System.currentTimeMillis()));        return "success";    }    public Integer getId() {        return id;    }    public void setId(Integer id) {        this.id = id;    }}package com.zhangyz.tools;import javax.servlet.http.Cookie;import javax.servlet.http.HttpServletRequest;import org.apache.log4j.Logger;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionInvocation;import com.opensymphony.xwork2.interceptor.Interceptor;public class TestInterceptor implements Interceptor {    private static Logger logger = Logger.getLogger(TestInterceptor.class);    @Override    public void destroy() {    }    @Override    public void init() {    }    @Override    public String intercept(ActionInvocation invocation) throws Exception {        String result = null;        HttpServletRequest request = ServletActionContext.getRequest();        Cookie cookies[] = request.getCookies();        Cookie sCookie = null;        String value = null;        if (cookies != null) {            for (int i = 0; i < cookies.length; i++) {                logger.info("INTERCEPTOR println cookie name "                        + cookies[i].getName() + " value "                        + cookies[i].getValue());            }        }        return invocation.invoke();    }} 
 
[解决办法]
这个是因为 你的拦截器在系统的拦截器之前就做处理了.你可以把你的拦截器stack,顺序调一下就可以了.