Java day9n

package model.bo;
import
import
import
import

java.sql.SQLException;
java.util.ArrayList;
model.bean.Account;
model.dao.ShowUserDAO;

public class CheckLoginBO {
private static final String EMAIL_PATTERN = "^[_A-Za-z0-9-+]+(.[_A-Zaz0-9-]+)*@"
+ "[A-Za-z0-9-]+(.[A-Za-z0-9]+)*(.[A-Za-z]{2,})$";
public boolean isValidAccount(String account, String firstName,
String lastName, String email) {
//check vaild input
boolean vaildMail =email.matches(EMAIL_PATTERN);
if ((account == null || "".equals(account))
|| (firstName == null || "".equals(firstName))
|| (lastName == null || "".equals(lastName))
|| (email == null|| "".equals(email)) || !vaildMail) {
return false;
}
else {
return true;
}
}
public ArrayList<Account> getAccountDetail() throws SQLException {
ArrayList<Account> listAccount = new ArrayList<Account>();
ShowUserDAO showUserDAO = new ShowUserDAO();
listAccount = showUserDAO.getAllUser();
return listAccount;
}
/**
* CheckDulication user
* @param account
* @return
*/
public boolean checkDulication(String account) {
// TODO Auto-generated method stub
return false;
}
}
=====================================================
<%@page import="model.bean.Account"%>
<%@page import="java.util.ArrayList"%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<%
ArrayList<Account> accountList = new ArrayList<Account>();
Account accounts = new Account();
String account = request.getParameter("account");

String fistName = request.getParameter("fistName");
String lastName = request.getParameter("lastName");
String email = request.getParameter("email");
session.setAttribute("account",account);
session.setAttribute("fistName",fistName);
session.setAttribute("lastName",lastName);
session.setAttribute("email",email);
accountList = (ArrayList<Account>) request.getAttribute("accList");
%>
<table>
<tr>
<th>account</th>
<th>firstName</th>
<th>lastName</th>
<th>email</th>
</tr>
<tr>
<td><%=account%></td>
<td><%=fistName%></td>
<td><%=lastName%></td>
<td><%=email%></td>
</tr>
</table>
<br>
<table>
<tr>

</tr>
<%

<th>account</th>
<th>firstName</th>
<th>lastName</th>
<th>email</th>
for (Account accc : accountList) {

%>
<tr>
<td><%=accc.getAccount()%></td>
<td><%=accc.getFistName()%></td>
<td><%=accc.getLastName()%></td>
<td><%=accc.getEmail()%></td>
</tr>
<%
}
%>
</table>
<br>
<%
String returnPage = "Login.jsp";
%>
<input type="button" value="Change"
onClick="javascript:window.location='<%=returnPage%>';">
<%
String updatePage = "UpdateServlet";
%>
<input type="button" value="Save"
onClick="javascript:window.location='<%=updatePage%>';">
</body>
</html>
=============================================================================
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"

pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form action="CheckAccountLoginServlet" method="post">
<H2 >Input your information</H2>
<table>
<tr>
<td>Account</td>
<td><Input type="text" id="account" name="account"
/></td>
</tr>
<tr>
<td>First name</td>
<td><Input type="text" id="firstName" name="fistName"
/></td>
</tr>
<tr>
<td>Last name</td>
<td><Input type="text" id="lastName" name="lastName"
/></td>
</tr>
<tr>
<td>Email</td>
<td><Input type="text" id="email" name="email" /></td>
</tr>
<tr>
<td style="text-align:center" colspan="2">
<Input type="submit" value="Submit" />
<Input type="reset" value="Reset" />
</td>
</tr>
</table>
</form>
</body>
</html>
================================================================================
========
package model.dao;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
public class UpdateDAO {
public void update(String account, String fistName, String lastName,
String email) {
Connection con = null;
PreparedStatement ps = null;
GetConnectionDAO connectionDAO = new GetConnectionDAO();
String query = "update account set fist_name=?,last_name=?,email=?
where useraccount =?";
try {
con = connectionDAO.getConnection();
ps = con.prepareStatement(query);
ps.setString(1, "fist_name");
ps.setString(2, "last_name");

ps.setString(3, "email");
ps.setString(4, "useraccount");
ps.executeUpdate();
ps.close();
con.close();
} catch (SQLException e) {
e.printStackTrace();
} catch (Exception e) {
System.out.println("Not Update!

");

}
}
}
================================================================================
========================
package model.dao;
import
import
import
import
import

java.sql.Connection;
java.sql.PreparedStatement;
java.sql.ResultSet;
java.sql.SQLException;
java.util.ArrayList;

import com.sun.org.apache.regexp.internal.recompile;
import com.sun.xml.internal.ws.api.pipe.NextAction;
import model.bean.Account;
public class ShowUserDAO {
static GetConnectionDAO getConnectionDAO = new GetConnectionDAO();
/**
*
* @return List Account
* @throws SQLException
*/
public ArrayList<Account> getAllUser() throws SQLException {
ArrayList<Account> accounts = new ArrayList<Account>();
String query = "SELECT useraccount,fist_name,last_name,email FROM
account";
ResultSet set = null;
try {
con = getConnectionDAO.getConnection();
System.out.println(con);
set = ps.executeQuery();
while (set.next()) {
Account account = new Account();
account.setAccount(set.getString("useraccount"));
account.setFistName(set.getString("fist_name"));
account.setLastName(set.getString("last_name"));
account.setEmail(set.getString("email"));
accounts.add(account);
//TODO Xem Lai-->
}
ps.close();
set.close();
con.close();

} finally {
}
return accounts;
}
public boolean duplicateCheck(String account){
ResultSet set = null;
String query ="SELECT useraccount FROM account ";
boolean check = false;
try {
con = getConnectionDAO.getConnection();
set = ps.executeQuery();
while (set.next()) {
if(set.getString("useraccount").equals(account)){
check = true;
break;
}else{
check = false;
}
}
set.close();
ps.close();
con.close();
}
return check;
}
}
================================================================================
=============
package model.dao;
import java.sql.PreparedStatement;
public class InsertDAO {
public void insert(String account, String fistName, String lastName,
String email) {
String query = "insert into account(useraccount,
fist_name,last_name,email) values (?,?,?,?)";
try {
GetConnectionDAO connectionDAO = new GetConnectionDAO();
con = connectionDAO.getConnection();
ps.setString(1, account);
ps.setString(2, fistName);
ps.setString(3, lastName);
ps.setString(4, email);
ps.executeUpdate();
System.out.println("Insert .....");

ps.close();
con.close();
// TODO: handle exception
}
}
}
=======================================================================
package model.dao;
import java.sql.DriverManager;
public class GetConnectionDAO {
public Connection getConnection(){
try{
Class.forName("com.mysql.jdbc.Driver");
if(con == null || con.isClosed()){
String ulr ="jdbc:mysql://localhost:3306/TRANEES";
con = DriverManager.getConnection(ulr,"root","1234");
}
}catch(SQLException e){
}
catch(Exception e){
System.out.println("ket noi ko duoc");
}
return con;
}
}
===============================================================================
package model.bean;
public class Account {
private String account;
private String fistName;
private String lastName;
private String email;
public Account() {
// TODO Auto-generated constructor stub
}
public Account(String account,String fistName,String lastName,String
email) {
this.account = account;
this.fistName =fistName;
this.lastName =lastName;
this.email = email;
}

}

public String getAccount() {
return account;

public void setAccount(String account) {
this.account = account;
}
}

public String getFistName() {
return fistName;
public void setFistName(String fistName) {
this.fistName = fistName;

}
}

public String getLastName() {
return lastName;
public void setLastName(String lastName) {
this.lastName = lastName;

}
}

public String getEmail() {
return email;
public void setEmail(String email) {
this.email = email;

}
}
=================================================================
package controller;
import java.io.IOException;
import java.util.ArrayList;
import
import
import
import
import

javax.servlet.RequestDispatcher;
javax.servlet.ServletException;
javax.servlet.http.HttpServlet;
javax.servlet.http.HttpServletRequest;
javax.servlet.http.HttpServletResponse;

import
import
import
import

model.bean.Account;
model.bo.CheckLoginBO;
model.dao.InsertDAO;
model.dao.UpdateDAO;

/**
* Servlet implementation class UpdateServlet
*/
public class UpdateServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public UpdateServlet() {
super();
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
*
response)
*/
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException {
doPost(request, response);

}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
*
response)
*/
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException {

String
String
String
String

account = request.getParameter("account");
fistName = request.getParameter("fistName");
lastName = request.getParameter("lastName");
email = request.getParameter("email");

request.setAttribute("account", account);
request.setAttribute("fistName", fistName);
request.setAttribute("lastName", lastName);
request.setAttribute("email", email);
System.out.println(account +fistName+lastName+email);
UpdateDAO updateDAO = new UpdateDAO();
InsertDAO insertDAO = new InsertDAO();
CheckLoginBO checkLoginBO = new CheckLoginBO();
RequestDispatcher rd =
request.getRequestDispatcher("ShowTranees.jsp");
ArrayList<Account> accList = new ArrayList<Account>();
if (checkLoginBO.checkDulication(account)) {
//update
updateDAO.update(account, fistName, lastName, email);
try {
accList = checkLoginBO.getAccountDetail();
System.out.println("Get Db Fail!");
}
request.setAttribute("accList", accList);
rd.forward(request, response);
System.out.println("Updated !!!!!!");
} else {
//insert
insertDAO.insert(account, fistName, lastName, email);
try {
accList = checkLoginBO.getAccountDetail();
}
System.out.println("Inserted !!!!1");
}
}
}
=============================================================================
package controller;

import java.io.IOException;
import java.util.ArrayList;
import
import
import
import
import

javax.servlet.RequestDispatcher;
javax.servlet.ServletException;
javax.servlet.http.HttpServlet;
javax.servlet.http.HttpServletRequest;
javax.servlet.http.HttpServletResponse;

import model.bean.Account;
import model.bo.CheckLoginBO;
/**
* Servlet implementation class CheckLoginServlet
*/
public class CheckAccountLoginServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public CheckAccountLoginServlet() {
super();
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
doPost(request, response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
String account = request.getParameter("account");
String fistName = request.getParameter("fistName");
String lastName = request.getParameter("lastName");
String email = request.getParameter("email");
ArrayList<Account> accList = new ArrayList<Account>();
CheckLoginBO checkLoginBO = new CheckLoginBO();
{

if (checkLoginBO.isValidAccount(account, fistName, lastName, email))
try {

checkLoginBO.getAccountDetail();

accList =

}

request.setAttribute("account", account);
request.setAttribute("fistName", fistName);
request.setAttribute("lastName", lastName);
request.setAttribute("email", email);

RequestDispatcher rd =
request.getRequestDispatcher("ShowTranees.jsp");
} else {
response.sendRedirect("Login.jsp");
}
}
}

Java day9n

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