＃06:ログアウト機能の実装
このチャプターでは、ログアウト機能を実装します。
【LogoutServlet】package jp.paiza.servlet;
import java.io.*;
import jakarta.servlet.*;
import jakarta.servlet.http.*;
import jakarta.servlet.annotation.*;
@WebServlet("/logout")
public class LogoutServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
}
}
【LogoutServlet】package jp.paiza.servlet;
import java.io.*;
import jakarta.servlet.*;
import jakarta.servlet.http.*;
import jakarta.servlet.annotation.*;
@WebServlet("/logout")
public class LogoutServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
req.getSession().invalidate();
res.sendRedirect("login");
}
}
新・Java入門編27: 例外について学習しよう
https://paiza.jp/works/java/new-primer/java-new-primer-27
Class HttpServlet
https://jakarta.ee/specifications/servlet/6.1/apidocs/jakarta.servlet/jakarta/servlet/http/httpservlet
Interface HttpServletRequest
https://jakarta.ee/specifications/servlet/6.1/apidocs/jakarta.servlet/jakarta/servlet/http/httpservletrequest
Interface HttpServletResponse
https://jakarta.ee/specifications/servlet/6.1/apidocs/jakarta.servlet/jakarta/servlet/http/httpservletresponse
Interface HttpSession
https://jakarta.ee/specifications/servlet/6.1/apidocs/jakarta.servlet/jakarta/servlet/http/httpsession