弱弱地问一下:怎么用重定向跳转出框架?

Question

此回复为自动发出,仅用于显示而已，并无任何其他特殊作用
楼主【yoyozhe】截止到2008-07-07 13:43:41的历史汇总数据(不包括此帖)：
发帖的总数量:0                        发帖的总分数:0                        
结贴的总数量:0                        结贴的总分数:0                        
无满意结贴数:0                        无满意结贴分:0                        
未结的帖子数:0                        未结的总分数:0                        
结贴的百分比:---------------------结分的百分比:---------------------
无满意结贴率:---------------------无满意结分率:---------------------
如何结贴请参考这里：http://topic.csdn.net/u/20080501/09/ef7ba1b3-6466-49f6-9d92-36fe6d471dd1.html

Answer 1

HttpSession session = request.getSession(true); Object user = session.getAttribute("user"); if (user != null) {
filterChain.doFilter(servletRequest, servletResponse);
} else {
logger.warn("用户未登陆,请先登陆！");
String url = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort() + request.getContextPath() + "/login.jsp";
StringBuffer scriptString=new StringBuffer();
scriptString.append("<script>\n\r");
scriptString.append("self.top.location.href=\""+url+"\"\n\r");
scriptString.append("</script>\n\r");
response.getOutputStream().print(scriptString.toString());
}

Answer 2

完整的登录验证过滤器代码
import javax.servlet.Filter;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.FilterChain;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.log4j.Logger;import com.gvninc.utils.StringUtils;/**
 * 登录验证过滤器<br>
 * Author：BluesLee<br>
 * CreateDate：2008-6-21<br>
 * Modifier：BluesLee<br>
 * ModifyDate：2008-6-21<br>
 * Version:1.0<br>
 * Copyright(c)2008 深蓝工作室<br>
 * All right reserved.<br>
 *
 */
public class LoginRightFilter implements Filter {
private Logger logger = Logger.getLogger(this.getClass()); /**
 * 未登陆时跳转目标页面
 */
private static String FORWARD = "/login.jsp";
/**
 * 登录验证过滤器初始化 <br>
 * Author：BluesLee<br>
 * CreateDate：2008-6-21<br>
 * Modifier：BluesLee<br>
 * ModifyDate：2008-6-21<br>
 * Version:1.0<br>
 *
 * @param filterConfig
 * @throws ServletException
 */
public void init(FilterConfig filterConfig) throws ServletException {
String forward = filterConfig.getInitParameter("forward");
StringUtils util=new StringUtils();
if (util.isNotNullStr(forward)) {
LoginRightFilter.FORWARD = forward;
}
} /**
 * 登录验证过滤 <br>
 * Author：BluesLee<br>
 * CreateDate：2008-6-21<br>
 * Modifier：BluesLee<br>
 * ModifyDate：2008-6-21<br>
 * Version:1.0<br>
 *
 * @param servletRequest
 * @param servletResponse
 * @param filterChain
 * @throws IOException
 * @throws ServletException
 */
public void doFilter(ServletRequest servletRequest,
ServletResponse servletResponse, FilterChain filterChain)
throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest) servletRequest;
HttpServletResponse response = (HttpServletResponse) servletResponse;
HttpSession session = request.getSession(true); Object user = session.getAttribute("user"); if (user != null) {
filterChain.doFilter(servletRequest, servletResponse);
} else {
logger.warn("用户未登陆,请先登陆！");
String url = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort() + request.getContextPath() + LoginRightFilter.FORWARD;
StringBuffer scriptString=new StringBuffer();
scriptString.append("<script>\n\r");
scriptString.append("self.top.location.href=\""+url+"\"\n\r");
scriptString.append("</script>\n\r");
response.getOutputStream().print(scriptString.toString());
}
}
public void destroy() {
}
}

Answer 3

按照你的写个简单的<%! String userStr; %> 
<% 
    userStr=(String)session.getValue("MM_Username"); 
    if(userStr==null){ 
        String url = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort() + request.getContextPath() + "/login.jsp";
            StringBuffer scriptString=new StringBuffer();
            scriptString.append("<script>\n\r");
            scriptString.append("self.top.location.href=\""+url+"\"\n\r");
            scriptString.append("</script>\n\r");
            out.write(scriptString.toString());
    }
  %> 

Answer 4

谢谢~~
可以我替换了之后还是不行:(login页面都不显示了:(

Answer 5

麻烦不要死套代码，看看实现逻辑，你的login.jsp页面不会跟我的在同一目录下
出错了，去看错误信息是什么再作调整照抄是不行地

Answer 6

用window.parent.location.href试试，window.top.location.href只是你框架上面部分进行跳转

Answer 7

login.jsp </head> 前面 加 <script>if(window.self != window.top){window.top.location.href="login.jsp";}  </script>