cookie工具类，解决servlet3.0以前不能添加httpOnly属性的问题

最近在解决XSS注入的问题，由于使用的servlet版本是2.5，不支持httpOnly的属性，故做了个工具类来实现cookie的httpOnly的功能。全类如下：

/**

* cookie工具类，解决servlet3.0以前不能添加httpOnly属性的问题
*

* @author zhang-long

* @createTime 2013-6-20

*/

public class CookieUtil {

/**

*

* @param response HttpServletResponse类型的响应

* @param cookie 要设置httpOnly的cookie对象

*/

public static void addHttpOnlyCookie(HttpServletResponse response, Cookie cookie){

// 判断对象是否存在null的情况

if(checkObjIsNull(response) || checkObjIsNull(cookie)){

return;

}

//依次取得cookie中的名称、值、最大生存时间、路径、域和是否为安全协议信息

String cookieName = cookie.getName();

String cookieValue = cookie.getValue();

int maxAge = cookie.getMaxAge();

String path = cookie.getPath();

String domain = cookie.getDomain();

boolean isSecure = cookie.getSecure();

StringBuffer strBufferCookie = new StringBuffer();

strBufferCookie.append(cookieName + "=" + cookieValue + ";");

if(maxAge >= 0){

strBufferCookie.append("Max-Age=" + cookie.getMaxAge() + ";");

}

if(!checkObjIsNull(domain)){

strBufferCookie.append("domain=" + domain + ";");

}

if(!checkObjIsNull(path)){

strBufferCookie.append("path=" + path + ";");

}

if(isSecure){

strBufferCookie.append("secure;HTTPOnly;");

}else{

strBufferCookie.append("HTTPOnly;");

}

response.addHeader("Set-Cookie",strBufferCookie.toString());

}

private static boolean checkObjIsNull(Object obj){

if(obj == null){

return true;

}

return false;

}

}

使用举例：

Cookie cookie1=new Cookie("n","cookieValue1");
cookie1.setMaxAge(500);
Cookie cookie2=new Cookie("cookieName2","cookieValue2");
Cookie cookie3=new Cookie("cookieName3","cookieValue3");
cookie3.setSecure(true);
Cookie cookie4=new Cookie("cookieName4","cookieValue4");
cookie4.setSecure(true);

CookieUtil.addHttpOnlyCookie(response, cookie1);
CookieUtil.addHttpOnlyCookie(response, cookie2);
CookieUtil.addHttpOnlyCookie(response, cookie3);
CookieUtil.addHttpOnlyCookie(response, cookie4);

例子中红色的部分只有在应用 使用了HTTPS协议的时候才能添加，否则这个cookie将再也无法读出！

添加成功后，查看cookie如下：