質問編集履歴
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プログラムを乗せた
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File without changes
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@@ -4,4 +4,121 @@
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test02.jspでどのようにURLを判断すればよろしいですか
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また"?id=foo"この部分の名称がわからないので教えてください
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Test02.javaではidの有無により処理を分岐しています
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idがある場合はtest02.jspでそのIDに対する中身を表示できているのですがIDがない場合は何も表示されなくて困ってます
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idがある場合はtest02.jspでそのIDに対する中身を表示できているのですがIDがない場合は何も表示されなくて困ってます
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### 該当のソースコード
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```test01jsp
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<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
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<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
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<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<script type="text/javascript" src="../js/dialog.js" charset="UTF-8">
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</script>
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<title>test</title>
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<script type="text/javascript">
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<!--
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function deleteEmp(info.id) {
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if(window.confirm('OK')){
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location.href = "./Delete?id=" + id;
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}
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}
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// -->
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</script>
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</head>
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<body>
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<a href="./Register">登録</a><br>
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<h1>一覧</h1>
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<table border="1">
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<tr><th>No</th><th>会社名</th><th>社員名</th><th>社員ID</th><th>性別</th><th>勤務形態</th><th>詳細</th><th>削除</th></tr>
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<c:forEach var="info" items="${en}" >
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<tr>
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<td><c:out value="${info.id}" /></td>
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<td><a href="./Test02?ed=${info.id}">中身</a></td>
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<td><p><a onClick="deleteEmp('${info.id}')">削除</a></p></td>
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</tr>
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</c:forEach>
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</table>
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</body>
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</html>
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```
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```test02jsp
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<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
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<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
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<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<script type="text/javascript" src="../js/dialog.js" charset="UTF-8">
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</script>
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<title>Test</title>
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<script type="text/javascript">
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<!--
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function register() {
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if(window.confirm('登録')){
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return true;
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}
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else{
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return false;
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}
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}
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// -->
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</script>
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</head>
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<body>
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<h1>Test</h1>
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<p>詳細</p>
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<form action = "./Test02" method = "post" onSubmit="return register()" >
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<font color="red">tet1</font>
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<c:forEach var="info" items="${en}" varStatus="status">
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<font color="red">tet2</font>
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<input type="hidden" name="empId" value="${info.id}" >
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<font color="red">tet3</font>
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<table border = 1>
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<tr><td>name</td><td><input type = "text" name = "name" value="${info.name}" ></td></tr>
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</table>
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</c:forEach>
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<input type = "submit" value = "toroku">
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<a href="./Test01"> <button type="button">modoru</button></a><br>
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</form>
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</body>
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</html>
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```
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```Test02java
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@WebServlet(name = "Test02", urlPatterns = {"/Register"})
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public class Register extends HttpServlet {
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private static final long serialVersionUID = 1L;
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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();
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request.setCharacterEncoding("UTF-8");
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if(request.getParameter("eid") != null){
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int id = Integer.parseInt(request.getParameter("id"));
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Dao dao = new Dao();
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ArrayList<Info> Info = dao.selectid(id);
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request.setAttribute("en", Info);
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}
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request.getRequestDispatcher("/WEB-INF/jsp/test02.jsp").forward(request, response);
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}
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@Override
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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//省略
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}
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}
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```
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