<input="time"/>で入力される値のサーブレットでの取り扱い方について

Question

現在プログラミングの課題として日報管理システムを作成しているのですが、下記のようなViewのフォームをJSPにて作成し、始業時間start_timeと終業時間end_timeをHTML上で<input="time"/>の形式で入力するようにし、その値をサーブレットでデータベースに保存するということをやりたいのですが、IllegalArgumentExceptionなどのエラーが出てしまい、どのようにすればよいか困っております。

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<c:import url="/WEB-INF/views/layout/app.jsp">
	<c:param name="content">
		<c:choose>
			<c:when test="${report != null}">
				<h2>日報 新規登録ページ</h2>
				<form method="POST" action="<c:url value='/reports/create' />">
					<c:if test="${errors != null}">
    					<div id="flush_error">
        					入力内容にエラーがあります。<br />
        					<c:forEach var="error" items="${errors}">
            					・<c:out value="${error}" /><br />
        					</c:forEach>

    					</div>
					</c:if>
						<label for="report_date">日付</label><br />
						<input type="date" name="report_date" value="<fmt:formatDate value='${report.report_date}' pattern='yyyy-MM-dd' />" />
						<br /><br />

						<label for="name">氏名</label><br />
						<c:out value="${sessionScope.login_employee.name}" />
						<br /><br />

						<label for="title">タイトル</label><br />
						<input type="text" name="title" value="${report.title}" />
						<br /><br />

						<label for="title">始業時間</label><br />
						<input type="time" name="start_time" value="${report.start_time}" step="60" />
						<br /><br />

						<label for="title">終業時間</label><br />
						<input type="time" name="end_time" value="${report.end_time}" step="60" />
						<br /><br />

						<label for="content">内容</label><br />
						<textarea name="content" rows="10" cols="50">${report.content}</textarea>
						<br /><br />

						<input type="hidden" name="_token" value="${_token}" />
						<button type="submit">投稿</button>
				</form>
			</c:when>
			<c:otherwise>
				<h2>お探しのデータは見つかりませんでした。</h2>
			</c:otherwise>
		</c:choose>

		<p>
			<a href="<c:url value='/reports/index' />">一覧に戻る</a>
		</p>
	</c:param>
</c:import>

Model層は下記のように定義いたしました。

package models;

import java.sql.Date;
import java.sql.Timestamp;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.Lob;
import javax.persistence.ManyToOne;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.Table;

@Table(name = "reports")
@NamedQueries({
	@NamedQuery(
			name = "getAllReports",
			query = "SELECT r FROM Report AS r ORDER BY r.id DESC"
			),
	@NamedQuery(
			name = "getReportsCount",
			query = "SELECT COUNT(r) FROM Report AS r"
			),
	@NamedQuery(
			name = "getMyAllReports",
			query = "SELECT r FROM Report AS r WHERE r.employee = :employee ORDER BY r.id DESC"
			),
	@NamedQuery(
			name = "getMyReportsCount",
			query = "SELECT COUNT(r) FROM Report AS r WHERE r.employee = :employee"
			),
	@NamedQuery(
			name = "checkReportDate",
			query = "SELECT COUNT(r) FROM Report AS r WHERE r.report_date = :report_date"
			)
})
@Entity
public class Report {
	@Id
	@Column(name = "id")
	@GeneratedValue(strategy = GenerationType.IDENTITY)
	private Integer id;

	@ManyToOne
	@JoinColumn(name = "employee_id", nullable = false)
	private Employee employee;

	@Column(name = "report_date", nullable = false, unique = true)
	private Date report_date;

	@Column(name = "title", length = 255, nullable = false)
	private String title;

	@Lob
	@Column(name = "content", nullable = false)
	private String content;

	@Column(name = "start_time", nullable = true)
	private Date start_time;

	@Column(name = "end_time", nullable = true)
	private Date end_time;

	@Column(name = "created_at", nullable = false)
	private Timestamp created_at;

	@Column(name = "updated_at", nullable = false)
	private Timestamp updated_at;

	public Integer getId() {
		return id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public Employee getEmployee() {
		return employee;
	}

	public void setEmployee(Employee employee) {
		this.employee = employee;
	}

	public Date getReport_date() {
		return report_date;
	}

	public void setReport_date(Date report_date) {
		this.report_date = report_date;
	}

	public String getTitle() {
		return title;
	}

	public void setTitle(String title) {
		this.title = title;
	}

	public String getContent() {
		return content;
	}

	public void setContent(String content) {
		this.content = content;
	}

	public Date getStart_time() {
		return start_time;
	}

	public void setStart_time(Date start_time) {
		this.start_time = start_time;
	}

	public Date getEnd_time() {
		return end_time;
	}

	public void setEnd_time(Date end_time) {
		this.end_time = end_time;
	}

	public Timestamp getCreated_at() {
		return created_at;
	}

	public void setCreated_at(Timestamp created_at) {
		this.created_at = created_at;
	}

	public Timestamp getUpdated_at() {
		return updated_at;
	}

	public void setUpdated_at(Timestamp updated_at) {
		this.updated_at = updated_at;
	}

}

新規日報作成時のControllerは以下になります。

package controllers.reports;

import java.io.IOException;
import java.sql.Date;
import java.sql.Timestamp;
import java.util.List;

import javax.persistence.EntityManager;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import models.Employee;
import models.Report;
import models.validators.ReportValidator;
import utils.DBUtil;

/**
 * Servlet implementation class ReportsCreateServlet
 */
@WebServlet("/reports/create")
public class ReportsCreateServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	/**
	 * @see HttpServlet#HttpServlet()
	 */
	public ReportsCreateServlet() {
		super();
		// TODO Auto-generated constructor stub
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		String _token = (String)request.getParameter("_token");
		if(_token != null && _token.equals(request.getSession().getId())) {
			EntityManager em = DBUtil.createEntityManager();

			Report r = new Report();

			r.setEmployee((Employee)request.getSession().getAttribute("login_employee"));

			Date report_date = new Date(System.currentTimeMillis());
			String rd_str = request.getParameter("report_date");

			if(rd_str != null && !rd_str.equals("")) {
				report_date = Date.valueOf(request.getParameter("report_date"));
			}
			r.setReport_date(report_date);

			r.setTitle(request.getParameter("title"));
			r.setContent(request.getParameter("content"));

			r.setStart_time(Date.valueOf(request.getParameter("start_time")));
			r.setEnd_time(Date.valueOf(request.getParameter("end_time")));

			Timestamp currentTime = new Timestamp(System.currentTimeMillis());
			r.setCreated_at(currentTime);
			r.setUpdated_at(currentTime);

			List<String> errors = ReportValidator.validate(r, true);
			if(errors.size() > 0) {
				em.close();

				request.setAttribute("_token", request.getSession().getId());
				request.setAttribute("report", r);
				request.setAttribute("errors", errors);

				RequestDispatcher rd = request.getRequestDispatcher("/WEB-INF/views/reports/new.jsp");
				rd.forward(request, response);
			} else {
				em.getTransaction().begin();
				em.persist(r);
				em.getTransaction().commit();
				em.close();
				request.getSession().setAttribute("flush", "登録が完了しました。");

				response.sendRedirect(request.getContextPath() + "/reports/index");
			}
		}
	}

}

ご存じの方、ぜひともご教授いただけると幸いです。

Comments

[m.ts10806]

何も反応のないまま時間がたって急に「解決済み」とされて戸惑っています。
https://teratail.com/help/question-tips#questionTips4-2

Answer 1

timeなら
型はDateではなくjava.sql.Timeにしないといけないのでは。
もしテーブル定義がDateなら、そもそも入力がtimeは間違ってますけどね。