[英]Redirection in a Liferay portlet using response.sendRedirect
我正在尝试将移动Web应用程序移植到liferay中。 我已经设法移植了大部分代码,但是问题是晶体管一直在全屏显示。
我已经阅读了有关使用portlet:actionURL的各种文章,这似乎可以解决更长的用户以及其他参数的问题,但这会使我的浏览器陷入空白屏幕的循环。
login.jsp
<form id="loginForm" action="<%= PortalUtil.getPathContext(request) + "/Submit" %>" method="post" autocomplete="off">
<label for="userid">User Number</label>
<input type="number" name="userid" id="userid" pattern="[0-9]*" value="">
<label for="userpass">Password</label>
<input type="password" name="userpass" id="userpass" value="">
<button type="submit" name="submit" value="submit" data-theme="a">Submit</button>
</form>
SubmitForm.java
package controller;
import java.io.IOException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
@WebServlet("/Submit")
public class SubmitForm extends HttpServlet {
public HttpSession getSession(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// Do required initialization
HttpSession session = null;
session = request.getSession(false);
return session;
}
// POST Method, Servlet contains NO GET Method
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String action = "";
try {
HttpSession session = getSession(request, response);
String user = session.getAttribute("user");
session.setAttribute("user", user);
session.setAttribute("redirect", "Home");
//session.setAttribute("redirect", "Status");
//session.setAttribute("redirect", "Login");
//session.setAttribute("redirect", "Error");
response.sendRedirect("redirect.jsp");
} catch (ServletException e) {
System.err.println("ServletException:", e);
} catch (IOException e) {
System.err.println("IOException:", e);
}
return;
}
}
redirect.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%
String url = (String) session.getAttribute("redirect");
System.out.println("redirect.jsp:url=" + url);
if (null == url)
url = "index.jsp";
else
session.removeAttribute("redirect");
%>
<!DOCTYPE html>
<html>
<head></head>
<body>
<script type="text/javascript">
window.location.href = "<%=url%>";
</script>
</body>
</html>
web.xml
<servlet>
<servlet-name>status-jsp</servlet-name>
<jsp-file>/status.jsp</jsp-file>
</servlet>
<servlet-mapping><servlet-name>status-jsp</servlet-name><url-pattern>/Status</url-pattern></servlet-mapping>
<servlet>
<servlet-name>home-jsp</servlet-name>
<jsp-file>/home.jsp</jsp-file>
</servlet>
<servlet-mapping><servlet-name>home-jsp</servlet-name><url-pattern>/Home</url-pattern></servlet-mapping>
<servlet>
<servlet-name>login-jsp</servlet-name>
<jsp-file>/login.jsp</jsp-file>
</servlet>
<servlet-mapping><servlet-name>login-jsp</servlet-name><url-pattern>/Login</url-pattern></servlet-mapping>
<servlet>
<servlet-name>error-jsp</servlet-name>
<jsp-file>/error.jsp</jsp-file>
</servlet>
<servlet-mapping><servlet-name>error-jsp</servlet-name><url-pattern>/Error</url-pattern></servlet-mapping>
新的redirect.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%
String url = (String) session.getAttribute("redirect");
System.out.println("redirect.jsp:url=" + url);
if (null == url) {
url = "index.jsp";
} else {
session.removeAttribute("redirect");
}
%>
<portlet:actionURL var="portleturl" >
<portlet:param name="jspPage" value="/portlet/<%=url%>"/>
</portlet:actionURL>
<!DOCTYPE html>
<html>
<head></head>
<body>
<script type="text/javascript">
//window.location.href = "<%=url%>";
console.log("${portleturl}");
window.location.href = "${portleturl}";
</script>
</body>
</html>
我不能完全确定我理解你的意思。 但我认为您的意思是显示一个不同的jsp,如果那是问题,那么可以在doView方法中执行此操作
final String jspurl = "/html/page/page.jsp";
getPortletContext().getRequestDispatcher(jspurl).include(renderRequest, renderResponse);
这将呈现page.jsp,而不是当前呈现器的portlet.xml中指定的jsp。
您似乎正在servlet中实现某种简化的登录-正如您提到的Liferay:Liferay已经很好地处理了身份管理,而且我不明白为什么要在其之上创建自己的身份管理。 此外,您正在门户网站中实现servlet-这没有多大意义。 而且,当您从Servlet的JSP创建portletURL(例如actionURL)时,我不确定portletURL的所有必要上下文是否在servlet中可用。
恕我直言,你应该
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