간단한 웹 페이지 로그인, 회원가입 구현
<registerForm.jsp>
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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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=UTF-8">
<title>Register Form</title>
</head>
<style>
div.ex {
text-align: center;
width: 35%;
padding: 10px;
border: 5px solid grey;
margin: 0px
}
</style>
<body>
<h1>Register Form</h1>
<div class="ex">
<form action="/hw1-helloMVC/Doregister" method="post">
<table cellpadding="5">
<tr> <h2> Enter information Here </h2> </tr>
<tr>
<td>아이디</td>
<td><input type="text" name="id" /></td>
</tr>
<tr>
<td>비밀번호</td>
<td><input type="password" name="password" /></td>
</tr>
<tr>
<td>이름</td>
<td><input type="text" name="name" /></td>
</tr>
<tr>
<td>성별</td>
<td><input type = "radio" name=gender value="male">남자
<input type = "radio" name=gender value="female">여자 </td>
</tr>
<tr>
<td>이메일</td>
<td><input type="text" name="email" /></td>
</tr>
<tr>
<td></td>
<td><input type="submit" value="register" /></td>
</tr>
</table>
</form>
</div>
</body>
</html>
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cs |
<Doregister.java>
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package controller;
import java.io.IOException;
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 model.Customer;
import service.CustomerService;
/**
* Servlet implementation class Doregister
*/
@WebServlet("/Doregister")
public class Doregister extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public Doregister() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String id = request.getParameter("id");
String password = request.getParameter("password");
String name = request.getParameter("name");
String gender = request.getParameter("gender");
String email = request.getParameter("email");
CustomerService service = (CustomerService) CustomerService.getInstance();
Customer customer = service.register(id, password, name, gender, email);
String page;
if(customer != null) {
page = "/view/registerSuccess.jsp";
request.setAttribute("customer", customer);
} else
page ="/view/error.jsp";
RequestDispatcher dispatcher = request.getRequestDispatcher(page);
dispatcher.forward(request, response);
}
}
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cs |
<DoLogin.java>
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package controller;
import java.io.IOException;
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 model.Customer;
import service.CustomerService;
/**
* Servlet implementation class DoLogin
*/
@WebServlet("/doLogin")
public class DoLogin extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public DoLogin() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String id = request.getParameter("id");
String password = request.getParameter("password");
CustomerService service = (CustomerService) CustomerService.getInstance();
Customer customer = service.login(id, password);
String page;
if(customer == null) {
page ="/view/loginFail.jsp";
request.setAttribute("id", id);
}
else {
page ="/view/loginSuccess.jsp";
request.setAttribute("customer", customer);
}
RequestDispatcher dispatcher = request.getRequestDispatcher(page);
dispatcher.forward(request, response);
}
}
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cs |
<CustomerService.java>
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package service;
import java.util.HashMap;
import java.util.Map;
import model.Customer;
public class CustomerService {
private static final CustomerService instance = new CustomerService();
private Map<String, Customer> customers;
private CustomerService() {
customers = new HashMap<String, Customer>();
System.out.println("In CustomerService Constructor");
}
public static CustomerService getInstance() {
return instance;
}
public void addCustomer(Customer customer) {
customers.put(customer.getId(), customer);
}
public Customer findCustomer(String id) {
if(id != null)
return(customers.get(id.toLowerCase()));
else
return null;
}
public Customer login(String id, String password) {
Customer customer = findCustomer(id);
if(customer != null) {
if( password.equals(customer.getPassword()) ) {
System.out.println("login success");
return customer;
}
else {
System.out.println("login failed");
return null;
}
}
return null;
}
public Customer register(String id, String password, String name, String gender, String email) {
addCustomer(new Customer(id, password, name, gender, email));
Customer customer = findCustomer(id);
if(customer == null) {
System.out.println("register failed");
return null;
} else {
System.out.println("register success");
return customer;
}
}
}
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cs |
TAGS.