質問編集履歴
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コードの追加
test
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test
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@@ -35,3 +35,179 @@
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よろしくお願いします。
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Todoの部分をAppに変えていました。
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```AppServlet.java
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package app;
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import java.io.IOException;
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import javax.servlet.RequestDispatcher;
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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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/**
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* TODO管理をおこなうサーブレット。
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* (ログイン画面のみ)
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*/
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public class AppServlet extends HttpServlet {
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/**
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* シリアルバージョンUID(おまじない)
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*/
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private static final long serialVersionUID = 1L;
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/**
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* JSPのベースディレクトリ。
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*/
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private static final String JSP_BASE = "/WEB-INF/jsp/";
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/**
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* 構築します。
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*/
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public AppServlet() {
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;
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}
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@Override
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protected void doGet(HttpServletRequest req, HttpServletResponse resp)
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throws ServletException, IOException {
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// 要求からactionパラメータを取得
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String action = req.getParameter("action");
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String forward = null;
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if("login".equals(action)) {
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// ログイン画面の処理
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// login.jspへフォワードする
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forward = JSP_BASE + "login.jsp";
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}else{
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// 不正なアクションの場合
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throw new ServletException("不正なリクエストです");
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}
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// JSPへのフォワード
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RequestDispatcher dispatcher = req.getRequestDispatcher(forward);
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dispatcher.forward(req, resp);
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}
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}
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```
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```web.xml
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<?xml version="1.0" encoding="ISO-8859-1"?>
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<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
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version="2.4">
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<servlet>
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<servlet-name>
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trans
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</servlet-name>
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<servlet-class>
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app.AppServlet
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</servlet-class>
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</servlet>
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<servlet-mapping>
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<servlet-name>
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trans
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</servlet-name>
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<url-pattern>
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/trans
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</url-pattern>
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</servlet-mapping>
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</web-app>
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```
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