http://blog.sina.com.cn/s/blog_9075354e0101jhnh.html
Cookie[] cookies = request.getCookies()
if (cookies != null) {
for (int i = 0; i < cookies.length; i++) {
if (cookies[i].getName().equals("xx.xx")) {
原文：http://www.cnblogs.com/ydxblog/p/5663919.html