googleappengine上我的web应用的重定向循环

798qvoo8 于 2021-06-30 发布在 Java

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我试图在网站上搜索我的问题，但没有运气。
我已经创建了一个jspweb应用程序并部署在googleappengine上。它不使用google帐户身份验证，而是使用parse.com作为后端数据存储。”jsp”是它的欢迎文件。当我在gae上点击url，比如在firefox上的“http://{project name}.appspot.com”，它显示：

The page isn't redirecting properly

Firefox has detected that the server is redirecting the request for this address in a way that will never complete.

This problem can sometimes be caused by disabling or refusing to accept cookies.

我去了firebug，发现“get login.jsp”被自动调用了20多次。
当我用chrome试用时，它返回了一个不同但相似的消息：

This webpage has a redirect loop

The webpage at http://{project-name}.appspot.com/login.jsp has resulted in too many redirects. Clearing your cookies for this site or allowing third-party cookies may fix the problem. If not, it is possibly a server configuration issue and not a problem with your computer.
Learn more about this problem.
Error code: ERR_TOO_MANY_REDIRECTS

你知道吗？
edit---login.jsp的代码如下

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
    <title>Log in</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <link rel="stylesheet" href="http://code.jquery.com/mobile/1.4.4/jquery.mobile-1.4.4.min.css" />
    <style>
    .alert-info {
        font-weight: bold;
        margin-bottom: 4px;
        padding: 8px 14px;
    }

    .full-layout { padding:2%; }
    </style>
    <script src="http://code.jquery.com/jquery-2.1.1.min.js"></script>
    <script src="http://code.jquery.com/mobile/1.4.4/jquery.mobile-1.4.4.min.js"></script>
    <script type="text/javascript">
        $.mobile.ajaxEnabled = false;
    </script>
</head>

  <body>
  <div class="full-layout">
    <h1>Log in</h1>
    <% String alertMsg = (String) request.getSession().getAttribute("loginResultMsg");
        if (alertMsg != null) {
    %>
        <%= alertMsg %>     
    <% } %>
    <form action="LoginServlet" method="post">
        Name:<input type="text" name="name"><br>
        Password:<input type="password" name="password"><br>
        <input type="submit" value="Log in">
    </form>
    <%  request.getSession().setAttribute("loginResultMsg", null); %>
</div>
<%@include file="footer.jsp" %>
</body>
</html>

firebug的网络控制台已记录：