質問編集履歴
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コードの追加
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@@ -35,4 +35,256 @@
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ずれた考え方をしてしまっている気がするのですが、
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アドバイスを言お願いします。
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アドバイスを言お願いします。
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以下全体のコードです。
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```jsp
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<%@ page language="java" contentType="text/html; charset=UTF-8"
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pageEncoding="UTF-8"%>
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<%@ page import="Change.DataBase"%>
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<%@ page import="java.lang.*" %>
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>Change_task</title>
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<link rel="stylesheet" href="../CSS/Change.css">
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<SCRIPT type="text/javascript" src="../js/Check_Change.js"></SCRIPT>
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</head>
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<body>
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<H1>アンケートフォーム</H1>
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<% DataBase db = new DataBase(); %>
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<%
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if(db.getError() != null){ %>
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<p><%= System.out.println(db.getError()) %></p>
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<%
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}else{
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%>
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<P>以下のアンケートフォームを入力して変更ボタンを押下してください</P>
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<FORM method="POST" name="question_form" id="form" action="/Change/ChangeServlet">
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<Input type="hidden" name="hiddenNO" value=<%= request.getParameter("ankeno") %>>
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<input type="hidden" name="move" value="update">
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<TABLE class="table">
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<TR class="th1">
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<TH name="left-table">質問</TH>
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<TH>回答</TH>
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</TR>
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～中略～
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</TABLE>
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<DIV class="send_div">
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<INPUT type="submit" class="send_button" value="変更" >
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</DIV>
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</FORM>
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<FORM>
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<DIV>
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<INPUT type="button" class="reset" value="リセット" onClick="location.reload();">
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</DIV>
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</FORM>
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<% } %>
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</body>
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</html>
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```
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```servlet
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package Change;
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import java.io.IOException;
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import java.sql.Connection;
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import java.sql.PreparedStatement;
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import java.sql.SQLException;
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import java.sql.Statement;
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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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public class ChangeServlet extends HttpServlet {
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private static final long serialVersionUID = 1L;
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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request.setCharacterEncoding("utf-8");
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//前準備
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String e;
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int count = 0;
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DataBase db = new DataBase();
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//各データを受け取って、条件に合うのか確かめる
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//郵便番号
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String p1 = request.getParameter("post_num1");
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String p2 = request.getParameter("post_num2");
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if(p1 != null && p1.length() ==3) { //郵便番号1がNullではなくかつ3桁か
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count++;
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}else {
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e = "郵便番号1は3桁の数字で入力してください";
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db.setError(e);
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request.getRequestDispatcher("/jsp/Change_Update.jsp").forward(request, response);
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}
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if(p2 != null && p2.length() ==4) { //郵便番号2がNullではなくかつ4桁か
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count++;
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}else {
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e = "郵便番号2は4桁の数字で入力してください";
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db.setError(e);
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request.getRequestDispatcher("/jsp/Change_Update.jsp").forward(request, response);
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}
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//住所チェック
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String address = request.getParameter("address");
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if(address != null) {
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count++;
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}else {
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e = "住所を入力してください";
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db.setError(e);
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request.getRequestDispatcher("/jsp/Change_Update.jsp").forward(request, response);
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}
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//氏名
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String name = request.getParameter("name");
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if(name != null ) {
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count++;
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}else {
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e = "氏名を入力してください";
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db.setError(e);
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request.getRequestDispatcher("/jsp/Change_Update.jsp").forward(request, response);
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}
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//年
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String year = request.getParameter("year");
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if(year != null) {
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count++;
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}else {
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e = "生まれ年を入力してください";
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db.setError(e);
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request.getRequestDispatcher("/jsp/Change_Update.jsp").forward(request, response);
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}
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//月
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String month = request.getParameter("month");
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if(month != null && month.length() <= 2 && Integer.parseInt(month) <= 12 && Integer.parseInt(month) >= 1) {
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count++;
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}else {
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e = "生まれ月は1~12で入力してください";
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db.setError(e);
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request.getRequestDispatcher("/jsp/Change_Update.jsp").forward(request, response);
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}
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//日
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String date = request.getParameter("date");
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if(date != null && date.length() <= 2 && Integer.parseInt(date) <=31 && Integer.parseInt(date) >=1) {
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count++;
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}else {
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e = "生まれ日は1~31で入力してください";
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db.setError(e);
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request.getRequestDispatcher("/jsp/Change_Update.jsp").forward(request, response);
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}
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//血液
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String blood = request.getParameter("blood");
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if(blood != null) {
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count++;
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}else {
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e = "血液型を選択してください";
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db.setError(e);
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request.getRequestDispatcher("/jsp/Change_Update.jsp").forward(request, response);
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}
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//意見
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String opinion = request.getParameter("opinion");
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if(opinion != null && opinion.length() <= 200) {
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count++;
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}else {
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e = "ご意見は200文字まで入力できます";
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db.setError(e);
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request.getRequestDispatcher("/jsp/Change_Update.jsp").forward(request, response);
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}
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//総合
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if(count == 10) {
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//SQL文の準備（すべてのカラムにアンケート内容を入れるので、prepareを使って後からバインドさせる）
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String sql ="UPDATE Information SET POSTNUM = ? , ADDRESS = ? , BIRTHYEAR = ? , BIRTHMONTH = ? , BIRTHDAY = ? , PHONE1 = ? , PHONE2 = ? , PHONE3 = ? , BLOOD = ? , BREAKFAST = ? , OPINION = ? WHERE NO = ?";
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//接続準備
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Connection conn = null;
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PreparedStatement smt = null;
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//更新のコード
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if(request.getParameter("move") == "update") {
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//接続開始
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try {
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conn = DBManager.getConnection();
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//バインド用のSQLを準備
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smt = conn.prepareStatement(sql);
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//バインド開始
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smt.setString(1, (request.getParameter("post_num1") + request.getParameter("post_num2")));
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smt.setString(2, request.getParameter("address"));
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smt.setString(3, request.getParameter("year"));
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smt.setString(4, request.getParameter("month"));
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smt.setString(5, request.getParameter("date"));
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smt.setString(6, request.getParameter("phone_num1"));
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smt.setString(7, request.getParameter("phone_num2"));
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smt.setString(8, request.getParameter("phone_num3"));
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smt.setString(9, request.getParameter("blood"));
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smt.setString(10, request.getParameter("food"));
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smt.setString(11, request.getParameter("opinion"));
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smt.setString(12, request.getParameter("hiddenNO"));
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//実行
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smt.executeQuery();
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}catch(SQLException er) {
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throw new ServletException(er);
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}finally {
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if(smt != null) {
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try {smt.close();}catch(SQLException ignore) {}
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}
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if(conn != null) {
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try {conn.close();}catch(SQLException ignore) {}
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}
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}
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//登録をする場合のコード
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}else if(request.getParameter("move") == "regist") {
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//insertさせるNoは、今テーブルに入っている数＋１なので、countを求めるSQL
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String sql2 = "SELECT count(No) FROM Information";
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Statement smt2 = null;
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//接続開始
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try {
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conn = DBManager.getConnection();
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//バインド用のSQLを準備
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smt = conn.prepareStatement(sql);
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//count用のSQL準備＆実行
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smt2 = conn.createStatement();
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count = smt2.executeUpdate(sql2);
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//バインド開始
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smt.setInt(1, count+1);//NOやからここより前にcount(No)の値をselectしておかないといけない。それプラス1
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smt.setString(2, (request.getParameter("post_num1") + request.getParameter("post_num2")));
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smt.setString(3, request.getParameter("address"));
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smt.setString(4, request.getParameter("year"));
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smt.setString(5, request.getParameter("month"));
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smt.setString(6, request.getParameter("date"));
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smt.setString(7, request.getParameter("phone_num1"));
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smt.setString(8, request.getParameter("phone_num2"));
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smt.setString(9, request.getParameter("phone_num3"));
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smt.setString(10, request.getParameter("blood"));
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smt.setString(11, request.getParameter("food"));
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smt.setString(12, request.getParameter("opinion"));
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//実行
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smt.executeQuery();
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}catch(SQLException er) {
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throw new ServletException(er);
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}finally {
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if(smt != null) {
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try {smt.close();}catch(SQLException ignore) {}
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}
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if(conn != null) {
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try {conn.close();}catch(SQLException ignore) {}
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}
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}
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}
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request.getRequestDispatcher("/jsp/result.jsp").forward(request, response);
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}
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doGet(request, response);
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}
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}
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```
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