Zzzz
37 lines
1.3 KiB
Java
37 lines
1.3 KiB
Java
package com.mzh.library.controller;
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import com.mzh.library.entity.AuthenticatedUser;
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import com.mzh.library.util.SessionAttributes;
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import java.io.IOException;
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import java.util.logging.Logger;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.servlet.http.HttpSession;
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public class LogoutServlet extends HttpServlet {
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private static final Logger LOGGER = Logger.getLogger(LogoutServlet.class.getName());
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@Override
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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HttpSession session = request.getSession(false);
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if (session != null) {
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AuthenticatedUser user = currentUser(session);
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if (user != null) {
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LOGGER.info("Logout userId=" + user.getId() + " role=" + user.getRole().getCode());
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}
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session.invalidate();
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}
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response.sendRedirect(request.getContextPath() + "/login");
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}
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private AuthenticatedUser currentUser(HttpSession session) {
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Object value = session.getAttribute(SessionAttributes.AUTHENTICATED_USER);
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return value instanceof AuthenticatedUser ? (AuthenticatedUser) value : null;
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}
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}
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