如何在Liferay portlet中设置Cookie？

Question

我在尝试在Liferay 6.0 portlet中设置会话cookie时遇到问题.我希望能够将cookie设置到客户端浏览器以存储用于linkedin身份验证的应用程序密钥,然后可以由其他portlet检索它.

我可以通过以下方式阅读cookie:

public void addLinkedInCV(ActionRequest request, ActionResponse response)
        throws PortalException, SystemException {

    HttpServletRequest convertReq = PortalUtil.getHttpServletRequest(request);
    Cookie[] cookies = convertReq.getCookies();
    ...
}

这是我尝试阅读一个失败的尝试.

@Override
public void doView(RenderRequest renderRequest,RenderResponse renderResponse) throws IOException, PortletException {

    HttpServletResponse convertRes = PortalUtil.getHttpServletResponse(renderResponse);
    HttpServletResponse originalRes = (HttpServletResponse) ((HttpServletResponseWrapper) convertRes).getResponse();

    Cookie linkedInCookie = new Cookie("linkedIn", util.getAppKey());
    originalRes.addCookie(linkedInCookie);
}

Answer 1

在没有大量修改Liferay门户本身的情况下,我发现设置portlet cookie的唯一方法是让portlet生成一个javascript,然后让客户端设置cookie.

所以我在doView方法中添加了以下内容.

if (renderRequest.getPortletSession(true).getAttribute("set_cookie")!=null){
    return;
}

String cookie_value = renderRequest.getPortletSession(true).getId();
String cookie_hours = "6";

StringBuffer buf = new StringBuffer();
buf.append("\n <script>");
buf.append("\n var today = new Date();");
buf.append("\n var expires_date = new Date ( today.getTime() + (" + cookie_hours + "*1000*60*60) );");
buf.append("\n document.cookie = \"linkedIn=" + util.getAppKey() + ";expires=\"+expires_date.toGMTString();");    
buf.append("\n </script>");

renderResponse.setContentType("text/html");
PrintWriter out = renderResponse.getWriter();
out.println(buf.toString());
renderRequest.getPortletSession(true).setAttribute(SET_COOKIE, cookie_value);

尽管如此,这不是最佳的,而是一种有效的解决方案;)