Question

java中cookie的元素无论如何也删不掉！跪求解答!

HttpServletResponse response=(HttpServletResponse) ActionContext.getContext().get(StrutsStatics.HTTP_RESPONSE);

HttpServletRequest request=(HttpServletRequest) ActionContext.getContext().get(StrutsStatics.HTTP_REQUEST);

Cookie ck[]=request.getCookies();

if(ck!=null)
{
for(int i=0;i<ck.length;i++)
{
Cookie cc=ck[i];
if("name".equals(cc.getName()) || "pwd".equals(cc.getName()))
{
cc.setMaxAge(0);
cc.setPath("/");
response.addCookie(cc);
}

}
}

调试过程中看到cookie中元素一个也没变。。。束手无策啊！！

Answer 1

你可以这样删除Cookie
public boolean deleteCookie(String cookieName) {
if (cookieName != null) {
Cookie cookie = getCookie(cookieName);//getCookie()方法在下面
if (cookie != null) {
cookie.setMaxAge(0);// 如果0，就说明立即删除
cookie.setPath("/");// 不要漏掉
response.addCookie(cookie);
return true;
}
}
return false;
}
public Cookie getCookie(String cookieName) {
Cookie[] cookies = request.getCookies();
Cookie cookie = null;
try {
if (cookies != null && cookies.length > 0) {
for (int i = 0; i < cookies.length; i++) {
cookie = cookies[i];
if (cookie.getName().equals(cookieName)) {
return cookie;
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
希望对你有所帮助!