【发布时间】：2015-10-23 12:11:02
【问题描述】：
我想在数据库表中插入日期和时间。我在 insertdao.java 中遇到错误，因为不兼容类型的时间戳无法转换为时间。 我的 MySQL 数据库中有一个 dttable，其列名和数据类型为 Logindate DATE、Logintime TIMESTAMP、LogoutTime TIMESTAMP。
在 index.jsp 中，我们必须在 Logindate,Logintime,LogoutTime 中插入值
<%@page language="java" contentType="text/html charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Timesheet Page</title>
</head>
<body>
<header>
<h2>WEEKLY TIME SHEET MANAGEMENT V 1.0</h2>
</header>
<form action="insertservlet" method="post">
<fieldset style="width: 90%">
<legend>Timesheet</legend>
<table>
<thead>
<tr>
<th>Date</th>
<th>Time In</th>
<th>Time Out</th>
</tr>
</thead>
<tbody>
<tr>
<td><input type="date" name="logindate" required="required" /></td>
<td><input type="time" name="logintime" required="required" /></td>
<td><input type="time" name="logouttime" required="required" /></td>
</tr>
</tbody>
</table>
</fieldset>
<input type="submit" value="Submit">
</form>
<a href="logout.jsp">Logout</a>
</body>
</html>
Bean.java：
package com.eis.bean;
import java.sql.Date;
import java.sql.Timestamp;
public class Bean {
public Bean() {}
private java.sql.Date logindate;
private java.sql.Timestamp logintime;
private java.sql.Timestamp logouttime;
public Date getLogindate() {
return logindate;
}
public void setLogindate(Date logindate) {
this.logindate = logindate;
}
public Timestamp getLogintime() {
return logintime;
}
public void setLogintime(Timestamp logintime) {
this.logintime = logintime;
}
public Timestamp getLogouttime() {
return logouttime;
}
public void setLogouttime(Timestamp logouttime) {
this.logouttime = logouttime;
}
@
Override
public String toString() {
return "Bean [logindate=" + logindate + ", logintime=" + logintime + ", logouttime=" + logouttime + "]";
}
}
插入道.java：
package com.eis.bean;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Date;
import java.sql.Timestamp;
public class insertdao {
public static int addBean(Bean user, String sql) throws SQLException {
int i = 0;
Connection conn = ConnectionProvider.getConn();
try {
PreparedStatement preparedStatement = conn.prepareStatement(sql);
// Parameters start with 1
preparedStatement.setDate(1, new Date(user.getLogindate().getTime()));
preparedStatement.setTimestamp(2, new Timestamp(user.getLogintime().getTime()));
preparedStatement.setTimestamp(3, new Timestamp(user.getLogouttime().getTime()));
i = preparedStatement.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
return i;
}
}
插入servlet.java：
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import com.eis.bean.Bean;
import com.eis.bean.insertdao;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.RequestDispatcher;
public class insertservlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private insertdao dao;
public insertservlet() {
super();
dao = new insertdao();
}
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
Bean user = new Bean();
try {
Date logindate = new SimpleDateFormat("yyyy/MM/dd").parse(request.getParameter("logindate"));
user.setLogindate((java.sql.Date) logindate);
} catch (ParseException e) {
e.printStackTrace();
}
try {
Date logintime = new SimpleDateFormat("HH:mm").parse(request.getParameter("logintime"));
user.setLogintime((java.sql.Timestamp) logintime);
} catch (ParseException ex) {
Logger.getLogger(insertservlet.class.getName()).log(Level.SEVERE, null, ex);
}
try {
Date logouttime = new SimpleDateFormat("HH:mm").parse(request.getParameter("logouttime"));
user.setLogouttime((java.sql.Timestamp) logouttime);
} catch (ParseException ex) {
Logger.getLogger(insertservlet.class.getName()).log(Level.SEVERE, null, ex);
}
insertdao dao = new insertdao();
String sql = "INSERT INTO dttable (LoginDate, LoginTime, LogoutTime) VALUES (?, ?, ?)";
try {
int i = insertdao.addBean(user, sql);
if (i != 0) {
out.print("<p style=\"color:Green\">Record saved successfully!!</p>");
RequestDispatcher rd = request.getRequestDispatcher("Sucsess.jsp");
rd.forward(request, response);
} else {
out.print("<p style=\"color:red\">**Record cannot be saved!**</p>");
RequestDispatcher rd = request.getRequestDispatcher("index.jsp");
rd.include(request, response);
}
} catch (Exception e) {
e.printStackTrace();
}
}
@
Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}@
Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}@
Override
public String getServletInfo() {
return "Short description";
}
}
如果我的代码不正确，请查看我的代码并提供帮助。
【问题讨论】：
-
能否请您添加您的表描述和异常跟踪？
-
@saravanakumar CREATE TABLE
dttable(LoginDateDATE NOT NULL COMMENT '',LoginTimeTIMESTAMP(6) NULL COMMENT '',LogoutTimeTIMESTAMP(6) NULL COMMENT '',主键 (LoginDate) 评论 '');