cookie 设置 httpOnly属性防止js读取cookie.

建立filter拦截器类

CookieHttpOnlyFilter

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
/***
* <P>CookieにHTTPOnly属性を設定インターセプタークラス.</P>
*
* @author hnnc
* @author $Author$
* @version $Id$*/
public class CookieHttpOnlyFilter implements Filter {/** {@inheritDoc} **/public void doFilter(ServletRequest request, ServletResponse response,FilterChain chain) throws IOException, ServletException {if (!(request instanceof HttpServletRequest)) {chain.doFilter(request, response);return;}HttpServletRequest httpReq = (HttpServletRequest) request;HttpServletResponse httpResp = (HttpServletResponse) response;Cookie[] cookies = httpReq.getCookies();if (cookies != null) {Cookie cookie = cookies[0];if (cookie != null) {HttpSession session = httpReq.getSession();if (session != null) {String sessionId = session.getId();// httpの设置httpResp.addHeader("Set-Cookie", "JSESSIONID=" + sessionId+ "; Path=/admin; HttpOnly");// httpsの设置
//                    httpResp.addHeader("Set-Cookie", "JSESSIONID=" + sessionId
//                            + "; Path=/admin;Secure; HttpOnly");}}}chain.doFilter(httpReq, httpResp);}/** {@inheritDoc} **/public void destroy() {}/** {@inheritDoc} **/public void init(FilterConfig filterConfig) throws ServletException {}
}

web.xml中配置拦截器

<filter><filter-name>CookieHttpOnly</filter-name><filter-class>jp.co.univ.www.admin.filter.CookieHttpOnlyFilter</filter-class></filter>
<filter-mapping><filter-name>CookieHttpOnly</filter-name><url-pattern>/*</url-pattern></filter-mapping>

参考：

http://conkeyn.iteye.com/blog/2025484

http://blog.csdn.net/a19881029/article/details/27536917