704
No
세션의 유효 시간
web.xml
<session-config>
<session-timeout>15</session-timeout>
</session-config>
<error-page>
<%
//세션의 유효시간 변경(초 단위)
//session.setMaxInactiveInterval(600);
int timeout=session.getMaxInactiveInterval();
out.println("세션의 유효시간 : " + timeout);
%>
세션 로그인 로그아웃 처리
SQL
CREATE TABLE MEMBER
(
USERID VARCHAR2 (50),
PASSWD VARCHAR2 (64),
NAME VARCHAR2 (50),
EMAIL VARCHAR2 (50),
HP VARCHAR2 (50),
ZIPCODE VARCHAR2 (7),
ADDRESS1 VARCHAR2 (200),
ADDRESS2 VARCHAR2 (200),
JOIN_DATE DATE DEFAULT SYSDATE
)
context.xml
<Resource name="jdbc/myoracle" auth="Container"
type="javax.sql.DataSource"
driverClassName="oracle.jdbc.OracleDriver"
url="jdbc:oracle:thin:@127.0.0.1:1521:xe"
username="java" password="1111" maxTotal="20" maxIdle="10"
maxWaitMillis="-1"/>
class DB
package config;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.sql.DataSource;
public class DB {
public static Connection getConn(){
DataSource ds =null;//javax.sql.DataSource
Connection conn=null;
try{
//context.xml 파일을 분석하는 객체
Context context = new InitialContext();
// context.xml 파일의 Resource 태그의 name 속성 검색
// java:comp/env/리소스태그의name
ds=(DataSource)context.lookup("java:comp/env/jdbc/myoracle");
// 커넥션풀에서 커넥션을 리턴받음
conn=ds.getConnection();
}catch(Exception e){
e.printStackTrace();
}
return conn;
}
public static void closed(Connection conn, PreparedStatement pstmt){
try{
if(pstmt!=null)pstmt.close();
}catch(Exception e){
e.printStackTrace();
}
try{
if(conn!=null)conn.close();
}catch(Exception e){
e.printStackTrace();
}
}
public static void closed(Connection conn, PreparedStatement pstmt, ResultSet rs){
try{
if(rs!=null)rs.close();
}catch(Exception e){
e.printStackTrace();
}
try{
if(pstmt!=null)pstmt.close();
}catch(Exception e){
e.printStackTrace();
}
try{
if(conn!=null)conn.close();
}catch(Exception e){
e.printStackTrace();
}
}
}
SHA-256 암호화
JHCipher
package crypt;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.Key;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.KeySpec;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.KeyGenerator;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;
import javax.crypto.spec.DESedeKeySpec;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;
public class JHCipher {
public void base64() throws Exception {
String str = "password";
String encStr = Base64.encodeBase64String(str.getBytes());
String decStr = new String(Base64.decodeBase64(encStr));
System.out.println("값 : " + str);
System.out.println("Base64 Encode : " + encStr);
System.out.println("Base64 Decode : " + decStr);
}
public void md5() throws Exception {
String str = "password";
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(str.getBytes());
byte byteData[] = md.digest();
StringBuffer sb = new StringBuffer();
for(int i = 0 ; i < byteData.length ; i++){
sb.append(Integer.toString((byteData[i]&0xff) + 0x100, 16).substring(1));
}
System.out.println("값 : " + str);
System.out.println("MD5 : " + sb.toString());
}
public static String sha256(String passwordText) throws Exception {
String str = passwordText;
StringBuffer sb = new StringBuffer();
try{
MessageDigest sha256 = MessageDigest.getInstance("SHA-256");
sha256.update(str.getBytes());
byte byteData[] = sha256.digest();
for(int i = 0 ; i < byteData.length ; i++){
sb.append(Integer.toString((byteData[i]&0xff) + 0x100, 16).substring(1));
}
}catch(Exception e){
e.printStackTrace();
}
// System.out.println("값 : " + str);
// System.out.println("SHA-256 : " + sb.toString());
//
//password == 5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8
// if(sb.toString().equals("5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8")){
// System.out.println("일치");
// }else{
// System.out.println("불일치");
// }
//
return sb.toString();
}
public static String sha512(String passwordText) {
StringBuffer sb = new StringBuffer();
String str = passwordText;
try{
MessageDigest sha256 = MessageDigest.getInstance("SHA-512");
sha256.update(str.getBytes());
byte byteData[] = sha256.digest();
for(int i = 0 ; i < byteData.length ; i++){
sb.append(Integer.toString((byteData[i]&0xff) + 0x100, 16).substring(1));
}
}catch(Exception e){
e.printStackTrace();
}
// System.out.println("값 : " + str);
// System.out.println("SHA-256 : " + sb.toString());
return sb.toString();
}
public void DES() throws Exception {
Key key = generateKey("DES", ByteUtils.toBytes("68616e6765656e61", 16));
String transformation = "DES/ECB/NoPadding";
Cipher cipher = Cipher.getInstance(transformation);
cipher.init(Cipher.ENCRYPT_MODE, key);
String str = "korea123";
byte[] plain = str.getBytes();
byte[] encrypt = cipher.doFinal(plain);
System.out.println("원문 : " + ByteUtils.toHexString(plain));
System.out.println("암호 : " + ByteUtils.toHexString(encrypt));
cipher.init(Cipher.DECRYPT_MODE, key);
byte[] decrypt = cipher.doFinal(encrypt);
System.out.println("복호 : " + ByteUtils.toHexString(decrypt));
}
public void DESPadding() throws Exception {
Key key = generateKey("DES", ByteUtils.toBytes("68616e6765656e61", 16));
String transformation = "DES/ECB/PKCS5Padding";
Cipher cipher = Cipher.getInstance(transformation);
cipher.init(Cipher.ENCRYPT_MODE, key);
String str = "korea";
byte[] plain = str.getBytes();
byte[] encrypt = cipher.doFinal(plain);
System.out.println("원문 : " + ByteUtils.toHexString(plain));
System.out.println("암호 : " + ByteUtils.toHexString(encrypt));
cipher.init(Cipher.DECRYPT_MODE, key);
byte[] decrypt = cipher.doFinal(encrypt);
System.out.println("복호 : " + ByteUtils.toHexString(decrypt));
}
public void DESede() throws Exception {
Key key = generateKey("DESede", ByteUtils.toBytes("696d697373796f7568616e6765656e61696d697373796f75", 16));
String transformation = "DESede/ECB/PKCS5Padding";
Cipher cipher = Cipher.getInstance(transformation);
cipher.init(Cipher.ENCRYPT_MODE, key);
String str = "hello123";
byte[] plain = str.getBytes();
byte[] encrypt = cipher.doFinal(plain);
System.out.println("원문 : " + ByteUtils.toHexString(plain));
System.out.println("암호 : " + ByteUtils.toHexString(encrypt));
cipher.init(Cipher.DECRYPT_MODE, key);
byte[] decrypt = cipher.doFinal(encrypt);
System.out.println("복호 : " + ByteUtils.toHexString(decrypt));
}
public void AES() throws Exception {
Key key = generateKey("AES", ByteUtils.toBytes("696d697373796f7568616e6765656e61", 16));
String transformation = "AES/ECB/PKCS5Padding";
Cipher cipher = Cipher.getInstance(transformation);
cipher.init(Cipher.ENCRYPT_MODE, key);
String str = "hello123";
byte[] plain = str.getBytes();
byte[] encrypt = cipher.doFinal(plain);
System.out.println("원문 : " + ByteUtils.toHexString(plain));
System.out.println("암호 : " + ByteUtils.toHexString(encrypt));
cipher.init(Cipher.DECRYPT_MODE, key);
byte[] decrypt = cipher.doFinal(encrypt);
System.out.println("복호 : " + ByteUtils.toHexString(decrypt));
}
public void AES_CBC() throws Exception {
Key key = generateKey("AES", ByteUtils.toBytes("696d697373796f7568616e6765656e61", 16));
byte[] iv = ByteUtils.toBytes("26c7d1d26c142de0a3b82f7e8f90860a", 16);
String transformation = "AES/CBC/PKCS5Padding";
IvParameterSpec ivParameterSpec = new IvParameterSpec(iv);
Cipher cipher = Cipher.getInstance(transformation);
cipher.init(Cipher.ENCRYPT_MODE, key, ivParameterSpec);
String str = "hello123";
byte[] plain = str.getBytes();
byte[] encrypt = cipher.doFinal(plain);
System.out.println("원문 : " + ByteUtils.toHexString(plain));
System.out.println("암호 : " + ByteUtils.toHexString(encrypt));
cipher.init(Cipher.DECRYPT_MODE, key, ivParameterSpec);
byte[] decrypt = cipher.doFinal(encrypt);
System.out.println("복호 : " + ByteUtils.toHexString(decrypt));
}
public void AESFile() throws Exception {
Key key = generateKey("AES", ByteUtils.toBytes("696d697373796f7568616e6765656e61", 16));
String transformation = "AES/ECB/PKCS5Padding";
Cipher cipher = Cipher.getInstance(transformation);
cipher.init(Cipher.ENCRYPT_MODE, key);
File plainFile = new File("c:/plain.txt");
File encryptFile = new File("c:/encrypt.txt");
File decryptFile = new File("c:/decrypt.txt");
BufferedInputStream input = null;
BufferedOutputStream output = null;
try {
input = new BufferedInputStream(new FileInputStream(plainFile));
output = new BufferedOutputStream(new FileOutputStream(encryptFile));
int read = 0;
byte[] inBuf = new byte[1024];
byte[] outBuf = null;
while ((read = input.read(inBuf)) != -1) {
outBuf = cipher.update(inBuf, 0, read);
if (outBuf != null) {
output.write(outBuf);
}
}
outBuf = cipher.doFinal();
if (outBuf != null) {
output.write(outBuf);
}
} finally {
if (output != null) try {output.close();} catch(IOException ie) {}
if (input != null) try {input.close();} catch(IOException ie) {}
}
cipher.init(Cipher.DECRYPT_MODE, key);
try {
input = new BufferedInputStream(new FileInputStream(encryptFile));
output = new BufferedOutputStream(new FileOutputStream(decryptFile));
int read = 0;
byte[] inBuf = new byte[1024];
byte[] outBuf = null;
while ((read = input.read(inBuf)) != -1) {
outBuf = cipher.update(inBuf, 0, read);
if (outBuf != null) {
output.write(outBuf);
}
}
outBuf = cipher.doFinal();
if (outBuf != null) {
output.write(outBuf);
}
} finally {
if (output != null) try {output.close();} catch(IOException ie) {}
if (input != null) try {input.close();} catch(IOException ie) {}
}
}
public void password() throws Exception {
String password = "mypassword";
byte[] passwordBytes = password.getBytes();
int len = passwordBytes.length;
byte[] keyBytes = new byte[16];
if (len >= 16) {
System.arraycopy(passwordBytes, 0, keyBytes, 0, 16);
} else {
System.arraycopy(passwordBytes, 0, keyBytes, 0, len);
for (int i = 0; i < (16 - len); i++) {
keyBytes[len + i] = passwordBytes[i % len];
}
}
Key key = generateKey("AES", keyBytes);
String transformation = "AES/ECB/PKCS5Padding";
Cipher cipher = Cipher.getInstance(transformation);
cipher.init(Cipher.ENCRYPT_MODE, key);
byte[] plain = password.getBytes();
byte[] encrypt = cipher.doFinal(plain);
System.out.println("원문 : " + ByteUtils.toHexString(plain));
System.out.println("암호 : " + ByteUtils.toHexString(encrypt));
cipher.init(Cipher.DECRYPT_MODE, key);
byte[] decrypt = cipher.doFinal(encrypt);
System.out.println("복호 : " + ByteUtils.toHexString(decrypt));
}
/**
* 관리자가 지정한 키로 암호화/복호화 한다.
*
* @throws Exception
*/
public void passwordStr() throws Exception {
String pasword = "mypassword";
String encrypt = AESEncode(pasword);
String decrypt = AESDecode(encrypt);
System.out.println("원문 : " + pasword);
System.out.println("암호 : " + encrypt);
System.out.println("복호 : " + decrypt);
assertThat(pasword, is(decrypt));
}
/**
* 비밀번호 자체를 키로 암호화/복호화 사용한다.
* 본인이 아니면 알 수 없으므로 보안에 좋음.
*
* @throws Exception
*/
public void passwordStr2() throws Exception {
String password = "mypassword";
String encrypt = AESEncode2(password);
String decrypt = AESDecode2(encrypt, password);
System.out.println("원문 : " + password);
System.out.println("암호 : " + encrypt);
System.out.println("복호 : " + decrypt);
assertThat(password, is(decrypt));
}
/**
* 해당 알고리즘에 사용할 비밀키(SecretKey)를 생성한다.
*
* @param algorithm
* @return
* @throws NoSuchAlgorithmException
*/
private static Key generateKey(String algorithm) throws NoSuchAlgorithmException {
KeyGenerator keyGenerator = KeyGenerator.getInstance(algorithm);
SecretKey secretKey = keyGenerator.generateKey();
return secretKey;
}
/**
* 주어진 데이터로, 해당 알고리즘에 사용할 비밀키(SecretKey)를 생성한다.
*
* @param algorithm
* @param keyData
* @return
* @throws NoSuchAlgorithmException
* @throws InvalidKeyException
* @throws InvalidKeySpecException
*/
public static Key generateKey(String algorithm, byte[] keyData) throws NoSuchAlgorithmException, InvalidKeyException, InvalidKeySpecException {
if ("DES".equals(algorithm)) {
KeySpec keySpec = new DESKeySpec(keyData);
SecretKeyFactory secretKeyFactory = SecretKeyFactory.getInstance(algorithm);
SecretKey secretKey = secretKeyFactory.generateSecret(keySpec);
return secretKey;
} else if ("DESede".equals(algorithm) || "TripleDES".equals(algorithm)) {
KeySpec keySpec = new DESedeKeySpec(keyData);
SecretKeyFactory secretKeyFactory = SecretKeyFactory.getInstance(algorithm);
SecretKey secretKey = secretKeyFactory.generateSecret(keySpec);
return secretKey;
} else {
SecretKeySpec keySpec = new SecretKeySpec(keyData, algorithm);
return keySpec;
}
/*
String upper = algorithm.toUpperCase();
if ("DES".equals(upper)) {
KeySpec keySpec = new DESKeySpec(keyData);
SecretKeyFactory secretKeyFactory = SecretKeyFactory.getInstance(algorithm);
SecretKey secretKey = secretKeyFactory.generateSecret(keySpec);
return secretKey;
} else if ("DESede".equals(upper) || "TripleDES".equals(upper)) {
KeySpec keySpec = new DESedeKeySpec(keyData);
SecretKeyFactory secretKeyFactory = SecretKeyFactory.getInstance(algorithm);
SecretKey secretKey = secretKeyFactory.generateSecret(keySpec);
return secretKey;
} else {
SecretKeySpec keySpec = new SecretKeySpec(keyData, algorithm);
return keySpec;
}
*/
}
public static String AESEncode(String str) throws InvalidKeySpecException, UnsupportedEncodingException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException {
Key key = generateKey("AES", ByteUtils.toBytes("696d697373796f7568616e6765656e61", 16));
byte[] iv = ByteUtils.toBytes("26c7d1d26c142de0a3b82f7e8f90860a", 16);
String transformation = "AES/CBC/PKCS5Padding";
IvParameterSpec ivParameterSpec = new IvParameterSpec(iv);
Cipher cipher = Cipher.getInstance(transformation);
cipher.init(Cipher.ENCRYPT_MODE, key, ivParameterSpec);
byte[] encrypt = cipher.doFinal(str.getBytes("UTF-8"));
String encryptStr = new String(Base64.encodeBase64(encrypt));
return encryptStr;
}
public static String AESEncode2(String str) throws InvalidKeySpecException, UnsupportedEncodingException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException {
byte[] strBytes = str.getBytes();
int len = strBytes.length;
byte[] keyBytes = new byte[16];
if (len >= 16) {
System.arraycopy(strBytes, 0, keyBytes, 0, 16);
} else {
System.arraycopy(strBytes, 0, keyBytes, 0, len);
for (int i = 0; i < (16 - len); i++) {
keyBytes[len + i] = strBytes[i % len];
}
}
Key key = generateKey("AES", keyBytes);
byte[] iv = ByteUtils.toBytes("26c7d1d26c142de0a3b82f7e8f90860a", 16);
String transformation = "AES/CBC/PKCS5Padding";
IvParameterSpec ivParameterSpec = new IvParameterSpec(iv);
Cipher cipher = Cipher.getInstance(transformation);
cipher.init(Cipher.ENCRYPT_MODE, key, ivParameterSpec);
byte[] encrypt = cipher.doFinal(str.getBytes("UTF-8"));
String encryptStr = new String(Base64.encodeBase64(encrypt));
return encryptStr;
}
public static String AESDecode(String str) throws InvalidKeySpecException, UnsupportedEncodingException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException {
Key key = generateKey("AES", ByteUtils.toBytes("696d697373796f7568616e6765656e61", 16));
byte[] iv = ByteUtils.toBytes("26c7d1d26c142de0a3b82f7e8f90860a", 16);
String transformation = "AES/CBC/PKCS5Padding";
IvParameterSpec ivParameterSpec = new IvParameterSpec(iv);
Cipher cipher = Cipher.getInstance(transformation);
cipher.init(Cipher.DECRYPT_MODE, key, ivParameterSpec);
byte[] encrypt = Base64.decodeBase64(str.getBytes());
byte[] decrypt = cipher.doFinal(encrypt);
String decryptStr = new String(decrypt, "UTF-8");
return decryptStr;
}
public static String AESDecode2(String encryptStr, String str) throws InvalidKeySpecException, UnsupportedEncodingException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException {
byte[] strBytes = str.getBytes();
int len = strBytes.length;
byte[] keyBytes = new byte[16];
if (len >= 16) {
System.arraycopy(strBytes, 0, keyBytes, 0, 16);
} else {
System.arraycopy(strBytes, 0, keyBytes, 0, len);
for (int i = 0; i < (16 - len); i++) {
keyBytes[len + i] = strBytes[i % len];
}
}
Key key = generateKey("AES", keyBytes);
byte[] iv = ByteUtils.toBytes("26c7d1d26c142de0a3b82f7e8f90860a", 16);
String transformation = "AES/CBC/PKCS5Padding";
IvParameterSpec ivParameterSpec = new IvParameterSpec(iv);
Cipher cipher = Cipher.getInstance(transformation);
cipher.init(Cipher.DECRYPT_MODE, key, ivParameterSpec);
byte[] encrypt = Base64.decodeBase64(encryptStr.getBytes());
byte[] decrypt = cipher.doFinal(encrypt);
String decryptStr = new String(decrypt, "UTF-8");
return decryptStr;
}
}
class MemberDAO
public int insertSha256(MemberDTO dto){
int rows=0;
Connection conn=null;
PreparedStatement pstmt =null;
try{
String sql ="insert into member (USERID, PASSWD, NAME) "
+ " VALUES ( ?, ?, ?) ";
conn=DB.getConn();
pstmt =conn.prepareStatement(sql);
pstmt.setString(1, dto.getUserid());
//SHA-256암호화 적용
pstmt.setString(2, JHCipher.sha256(dto.getPasswd()));
pstmt.setString(3, dto.getName());
//insert 실행 후 성공한 레코드 갯수
//affected rows(영향을 받은 행)
rows=pstmt.executeUpdate();
}catch(Exception e){
e.printStackTrace();
}finally{
DB.closed(conn, pstmt);
}
return rows;
}
public String loginCheckSha256(String userid, String passwd){
String result=null;
Connection conn=null;
PreparedStatement pstmt =null;
ResultSet rs=null;
try{
conn=DB.getConn();//DB 커넥션 리턴
String sql=" select name from member where USERID=? and passwd=? ";
pstmt=conn.prepareStatement(sql);
pstmt.setString(1, userid);//1번 물음표
pstmt.setString(2, JHCipher.sha256(passwd));//2번 물음표
rs=pstmt.executeQuery();
if(rs.next()){//로그인 성공하면 이름을 저장
result=rs.getString("name");
}
}catch(Exception e){
e.printStackTrace();
}finally{
DB.closed(conn, pstmt,rs);
}
return result;
}
class SessionController
package member;
import java.io.IOException;
import java.io.PrintWriter;
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 javax.servlet.http.HttpSession;
@WebServlet("/session_servlet/*")
public class SessionController extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String url=request.getRequestURI().toString();
MemberDAO dao =new MemberDAO();
if(url.indexOf("join_session.do")!=-1){
//사용자가 입력한 값
String userid=request.getParameter("userid");
String passwd=request.getParameter("passwd");
String name=request.getParameter("name");
MemberDTO dto=new MemberDTO();
dto.setUserid(userid);
dto.setPasswd(passwd);
dto.setName(name);
int rows =dao.insertSha256(dto);
String message ="";
if(rows>0){
message="회원 가입 처리가 완료되었습니다.";
}else{
message="회원 가입 처리 과정에서 오류가 발생했습니다.";
}
response.setContentType("text/html;charset=utf-8");
PrintWriter out =response.getWriter();
out.print(message);
}else if(url.indexOf("login.do")!=-1){
String userid=request.getParameter("userid");
String passwd=request.getParameter("passwd");
String result=dao.loginCheckSha256(userid, passwd);
if(result==null){
result="아이디 또는 비밀번호가 일치하지 않습니다.";
}else{//로그인 성공
HttpSession session =request.getSession();
session.setAttribute("loginUser", result);
result =result+"님 환영합니다.";
}
response.setContentType("text/html;charset=utf-8");
PrintWriter out =response.getWriter();
out.print(result);
}else if(url.indexOf("logout.do")!=-1){
//로그아웃 처리
//세션 객체 생성
HttpSession session=request.getSession();
//세션을 초기화시킴(JSESSIONID 도 재발급됨)
session.invalidate();
String page=request.getContextPath()+"/ch12/session_login.jsp?message=logout";
response.sendRedirect(page);
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}
회원가입아이디 :
|
|
아이디
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메인 페이지홍길동 님이 접속 중입니다.
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join_session.jsp
<%@ 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>Insert title here</title>
<%@ include file="../include/header.jsp" %>
<script src="http://code.jquery.com/jquery-3.2.1.min.js"></script>
<script type="text/javascript">
$(function(){
$("#btnJoin").click(function(){
var userid=$("#userid");
var passwd=$("#passwd");
var name=$("#name");
$.ajax({
type:"post",
url:"${path}/session_servlet/join_session.do",
data:{
userid:userid.val(),
passwd:passwd.val(),
name:name.val()
},
success:function(result){
$("#result").html(result);
userid.val("");
passwd.val("");
name.val("");
}
});
});
});
</script>
</head>
<body>
<!-- /ch092/join_oracle.jsp -->
<h2>회원가입</h2>
아이디 : <input id="userid"><br>
비밀번호 : <input type="password" id="passwd"><br>
이름 : <input id="name"><br>
<button id="btnJoin">회원가입</button>
<a href="${path }/ch12/session_login.jsp">로그인</a>
<div id="result"></div>
현재 로그인 유저 :
${loginUser }
</body>
</html>
session_login.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<%@ include file="../include/header.jsp" %>
<script src="http://code.jquery.com/jquery-3.2.1.min.js"></script>
<script type="text/javascript">
$(function(){
$("#btnLogin").click(function(){
var userid=$("#userid").val();
var passwd=$("#passwd").val();
$.ajax({
type:"post",
url:"${path}/session_servlet/login.do",
data:{
userid:userid,
passwd:passwd
},
success:function(result){
loginSuccess(result);
}
});
});
});
function loginSuccess(result){
if(result.search("님 환영합니다.")>0){
location.href="${path}/ch12/main.jsp";
}else{
$("#result").html(result);
}
}
</script>
</head>
<body>
아이디 <input id="userid"> <br>
비밀번호 <input type="password" id="passwd">
<button id="btnLogin">로그인</button>
<div id="result"></div>
<br>
<a href="${path }/ch12/join_session.jsp">회원가입</a>
<c:if test="${param.message =='logout' }">
<div style="color:blue">
로그아웃되었습니다.
</div>
</c:if>
</body>
</html>
session_check.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!-- JSTL(Jsp Standard Tag Library) -->
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<c:if test="${sessionScope.loginUser==null }" >
<script>
alert("로그인하신 후 사용하세요.");
location.href="${path}/ch12/session_login.jsp";
</script>
</c:if>
main.jsp
<%@ 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>Insert title here</title>
<%@ include file="../include/header.jsp" %>
<%@ include file="session_check.jsp" %>
<script src="http://code.jquery.com/jquery-3.2.1.min.js"></script>
<script type="text/javascript">
$(function(){
$("#btnLogout").click(function(){
location.href="${path}/session_servlet/logout.do";
});
});
</script>
</head>
<body>
<h2>메인 페이지</h2>
${sessionScope.loginUser } 님이 접속 중입니다.
<br>
<button type="button" id="btnLogout">로그아웃</button>
</body>
</html>
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