此URL Java servlet不支持HTTP方法POST

问题描述 投票:0回答:2

有人可以告诉我为什么我会出错:HTTP状态405 –不允许的方法吗?我正在尝试完成方法doPost()之后,将用户重定向到“ / logout”控制器,其中是无效会话。这很有趣,因为方法被调用了,做所有应该做的事(更新数据库中的用户),但是在发送给用户错误405之后。另一个我使用doPost()的地方(例如:LoginController)运行良好,但是当我尝试强制查找时错误,我没有看到任何:<

<div class="container">
    <div class="col-md-8 col-md-offset-2">
        <form method="post" action="account">
            <div class="form-group">
                <label for="email">Email address</label>
                <input name="email" type="email" class="form-control" id="email"
                       value="${sessionScope.loggedUser.email}" required aria-describedby="emailHelp"
                       placeholder="Enter email">
            </div>
            <div class="form-group">
                <label for="password">Password</label>
                <input name="password" type="password" minlength="5" maxlength="40" required class="form-control"
                       id="password" placeholder="Password">
            </div>
            <div class="form-group">
                <label for="repeatPassword">Repeat Password</label>
                <input name="repeatPassword" type="password" minlength="5" maxlength="40" required class="form-control"
                       id="repeatPassword" placeholder="Password">
            </div>
            <input class="btn btn-lg btn-primary btn-block" type="submit" value="Save changes"/>
        </form>
    </div>
</div>

@WebServlet("/account")
public class AccountController extends HttpServlet {
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        String email = req.getParameter("email");
        String password = req.getParameter("password");
        String repeatPassword = req.getParameter("repeatPassword");

        if (email == null || password == null || repeatPassword == null) {
            doGet(req, resp);
            return;
        }

        if (password.equals(repeatPassword)) {
            HttpSession session = req.getSession();
            User user = (User) session.getAttribute("loggedUser");
            user.setEmail(email);
            String sha1hexPassword = DigestUtils.sha1Hex(password);
            user.setPassword(sha1hexPassword);
            UserService service = new UserService();

            try {
                service.update(user);
            } catch (UpdateObjectException e) {
                e.printStackTrace();
            }
            req.getRequestDispatcher("/logout").forward(req, resp);
        } else {
            req.setAttribute("errorMessage", "Passwords not the same");
            req.setAttribute("fragment", "account");
            req.getRequestDispatcher("WEB-INF/index.jsp").forward(req, resp);
        }
    }
}

感谢任何提示。

java servlets http-status-code-405
2个回答
0
投票

您的doGet()方法调用位于服务器doPost()代码内部。您应该重定向响应,doGet用于接收GET请求和任何查询字符串。


0
投票

问题已解决。在这里:

req.getRequestDispatcher("/logout").forward(req, resp);

我应该做

resp.sendRedirect(req.getContextPath()+"/logout");

因为在“ / logout”中,我只有doGet()方法,如果我使用“ getRequestDispatcher()”,则它会尝试找到doPost()方法。

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