小编New*_*bie的帖子

我最近下载了Eclipse 3.6,一切正常,但是有一个问题让我很沮丧.代码辅助弹出窗口中当前所选项目的突出显示颜色在白色背景下几乎看不到.我试图弄乱颜色设置,但似乎没有我的需求选项.Windows颜色方案中设置的线条突出显示颜色仅用于在聚焦的弹出窗口中突出显示.

我正在尝试编写一个会话过滤器来集中我的应用引擎Web应用程序中的授权检查.

我的过滤器看起来像这样:

@Override
public void doFilter(ServletRequest request, ServletResponse response,
        FilterChain chain) throws IOException, ServletException {
    HttpServletRequest httpReq = (HttpServletRequest) request;
    HttpServletResponse httpResp = (HttpServletResponse) request;
    HttpSession session = httpReq.getSession();

    httpReq.setCharacterEncoding("UTF-8");
    httpResp.setCharacterEncoding("UTF-8");
    httpResp.setContentType("application/json");

    Boolean isAuthorized = (Boolean) session.getAttribute("isAuthorized");

    if (!isAuthorized || isAuthorized == null) {
        httpResp.sendError(HttpServletResponse.SC_UNAUTHORIZED);
    } else {
        chain.doFilter(request, response);
    }
}

但是当我启动app engine dev服务器时,我遇到了这个例外:"org.mortbay.jetty.request不能转换为javax.servlet.http.httpservletresponse".我究竟做错了什么？