Java 使用jsp、bean类和servlet在MySQL数据库中插入时间和日期
我想在数据库表中插入日期和时间。我在insertdao.java中遇到错误，因为不兼容的类型timestamp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日期、Logintime时间戳、LogoutTime时间戳 在index.jsp中，我们必须在Logindate、Logintime、LogoutTime中插入值Java 使用jsp、bean类和servlet在MySQL数据库中插入时间和日期,java,mysql,jsp,servlets,Java,Mysql,Jsp,Servlets,我想在数据库表中插入日期和时间。我在insertdao.java中遇到错误，因为不兼容的类型timestamp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日期、Logintime时间戳、LogoutTime时间戳 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"
<%@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>
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;
}
}
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";
}
}
导入java.io.PrintWriter；
导入javax.servlet.ServletException；
导入javax.servlet.http.HttpServlet；
导入javax.servlet.http.HttpServletRequest；
导入javax.servlet.http.HttpServletResponse；
导入java.io.IOException；
导入java.text.ParseException；
导入java.text.simpleDataFormat；
导入java.util.Date；
导入com.eis.bean.bean；
导入com.eis.bean.insertdao；
导入java.util.logging.Level；
导入java.util.logging.Logger；
导入javax.servlet.RequestDispatcher；
公共类insertservlet扩展了HttpServlet{
私有静态最终长serialVersionUID=1L；
私人插刀；
公共insertservlet（）{
超级（）；
dao=新的insertdao（）；
}
受保护的void processRequest（HttpServletRequest请求、HttpServletResponse响应）
抛出ServletException、IOException{
setContentType（“text/html；charset=UTF-8”）；
PrintWriter out=response.getWriter（）；
Bean user=newbean（）；
试一试{
Date logindate=新的SimpleDataFormat（“yyyy/MM/dd”）.parse（request.getParameter（“logindate”）；
user.setLogindate（（java.sql.Date）logindate）；
}捕获（解析异常）{
e、 printStackTrace（）；
}
试一试{
Date logintime=new SimpleDataFormat（“HH:mm”）.parse（request.getParameter（“logintime”）；
user.setLogintime（（java.sql.Timestamp）logintime）；
}捕获（解析异常）{
Logger.getLogger（insertservlet.class.getName（））.log（Level.SEVERE，null，ex）；
}
试一试{
datelogouttime=newsimpledateformat（“HH:mm”）.parse（request.getParameter（“logouttime”））；
setLogouttime（（java.sql.Timestamp）logouttime）；
}捕获（解析异常）{
Logger.getLogger（insertservlet.class.getName（））.log（Level.SEVERE，null，ex）；
}
insertdao=newinsertdao（）；
String sql=“插入dttable（LoginDate、LoginTime、LogoutTime）值（？，？）”；
试一试{
inti=insertdao.addBean（用户，sql）；
如果（i！=0）{
out.print（“记录保存成功！！
”；
RequestDispatcher rd=request.getRequestDispatcher（“successs.jsp”）；
转发（请求、响应）；
}否则{
out.print（“**无法保存记录！***
”；
RequestDispatcher rd=request.getRequestDispatcher（“index.jsp”）；
包括（请求、响应）；
}
}捕获（例外e）{
e、 printStackTrace（）；
}
}
@
推翻
受保护的void doGet（HttpServletRequest请求、HttpServletResponse响应）
抛出ServletException、IOException{
processRequest（请求、响应）；
}@
推翻
受保护的void doPost（HttpServletRequest请求、HttpServletResponse响应）
抛出ServletException、IOException{
processRequest（请求、响应）；
}@
推翻
公共字符串getServletInfo（）{
返回“简短描述”；
}
}
setTimestamp（int-parameterIndex，java.sql.Timestamp x）您可以添加您的表描述和异常跟踪吗？@saravanakumar CREATE table
dttableLoginDateLoginTimeLogoutTimeLoginDatejava.sql.Timestamp Timestamp=new java.sql.Timestamp（logintime.getTime（））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";
}
}
preparedStatement.setTimestamp(2, new Timestamp(user.getLogintime().getTimes()));
preparedStatement.setTimestamp(3, new Timestamp(user.getLogouttime().getTime()));