java清除request的cookie

一、删除已知名称的Cookie（方案：重新建立同名立即删除类型的Cookie）

    Cookie newCookie=new Cookie("username",null); //假如要删除名称为username的Cookie
    newCookie.setMaxAge(0); //立即删除型
    newCookie.setDomain(domain);//保存cookie的IP地址,则是删除这个IP的cookie
    newCookie.setPath("/"); //项目所有目录均有效，这句很关键，否则不敢保证删除
    newCookie.setHttpOnly(httpOnly);
    response.addCookie(newCookie); //重新写入，将覆盖之前的

二、删除所有Cookie

Cookie[] cookies=request.getCookies();
    for(Cookie cookie:cookies){
    cookie.setDomain(domain);//保存cookie的IP地址,则是删除这个IP的cookie
    cookie.setMaxAge(0);
    cookie.setPath("/");
    cookie.setHttpOnly(httpOnly);
    response.addCookie(cookie);
   ｝

三、定义静态工具类

//删除某个cookie
public static void deleteCookie(HttpServletResponse response, String domain, String path, String name,boolean httpOnly) {
    Cookie cookie = new Cookie(name, null);
    cookie.setDomain(domain);//保存cookie的IP地址,则是删除这个IP的cookie
    cookie.setPath(path);
    cookie.setMaxAge(0);
    cookie.setHttpOnly(httpOnly);
    response.addCookie(cookie);
}
//调用
HttpServletResponse response = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getResponse();
CookieUtil.deleteCookie(response, "localhost", "/", "nickname",  false);