JSP|DB:会員登録と会員情報修正プログラミング
58539 ワード
作成順序
1. join.html(view,con) + DB
1. join.htmlの作成
2.1ベースのSQL文の作成
joinOk Servlet(Model-DB)
logIn.html(view,con)
LogInOk Servlet(Model-DB)
package com.javalec.ex;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.Arrays;
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;
/**
* Servlet implementation class LogInOk
*/
@WebServlet("/LogInOk")
public class LogInOk extends HttpServlet {
private static final long serialVersionUID = 1L;
private Connection connection;
private Statement stmt;
private ResultSet resultSet;
private String name, id, pw, phone1, phone2, phone3, gender;
/**
* @see HttpServlet#HttpServlet()
*/
public LogInOk() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
actionDo(request, response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
actionDo(request, response);
}
private void actionDo(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
id = request.getParameter("id");
pw = request.getParameter("pw");
//2. Member 테이블 접근
//3. 받은 아이디가 존재하는 지 아닌지
//4. 비밀번호가 일치하는지 아닌지
String query = "select * from member where id = '" + id + "' and pw = '" + pw + "'";
try {
//1. DB 접근
Class.forName("oracle.jdbc.driver.OracleDriver");
connection = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe", "scott", "tiger");
stmt = connection.createStatement();
resultSet = stmt.executeQuery(query);
// resultSet객체로 반환한 쿼리 실행문 결과 데이터가 있다면: true
while (resultSet.next()) {
name = resultSet.getString("name");
id = resultSet.getString("id");
pw = resultSet.getString("pw");
phone1 = resultSet.getString("phone1");
phone2 = resultSet.getString("phone2");
phone3 = resultSet.getString("phone3");
gender = resultSet.getString("gender");
}
/*
* 브라우저 하나당 하나의 세션 존재
* name 값에 name 입력
* id, id
* pw, pw
*/
HttpSession httpSession = request.getSession();
httpSession.setAttribute("name", name);
httpSession.setAttribute("id", id);
httpSession.setAttribute("pw", pw);
response.sendRedirect("loginResult.jsp");
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (resultSet != null)
resultSet.close();
if (stmt != null)
stmt.close();
if (connection != null)
connection.close();
} catch (Exception e2) {
e2.printStackTrace();
}
}
}
}
出力:Java
modify.jsp(view,con)
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.Statement"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=EUC-KR"
pageEncoding="EUC-KR"%>
<%!
Connection connection;
Statement statement;
ResultSet resultSet;
String name, id, pw, phone1, phone2, phone3, gender;
%>
<!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=EUC-KR">
<title>Insert title here</title>
</head>
<body>
<%
// 로그인 후 session에 살아있는 아이디 값을 가져옴
id = (String)session.getAttribute("id");
// ID 정보로 멤버 테이블 접근
String query = "select * from member where id = '" + id + "'";
//DB 연결
Class.forName("oracle.jdbc.driver.OracleDriver");
connection = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe" , "scott" , "tiger");
statement = connection.createStatement();
resultSet = statement.executeQuery(query);
while(resultSet.next()) {
name = resultSet.getString("name");
pw = resultSet.getString("pw");
phone1 = resultSet.getString("phone1");
phone2 = resultSet.getString("phone2");
phone3 = resultSet.getString("phone3");
gender = resultSet.getString("gender");
}
%>
<!-- 회원가입과 같이 정보 입력, ModifyOk로 정보 post -->
<form action="ModifyOk" method="post">
이름 : <input type="text" name="name" size="10" value=<%=name %>><br />
아이디 : <%=id %><br />
비밀번호 : <input type="text" name="pw" size="10"><br />
전화번호 : <select name="phone1">
<option value="010">010</option>
<option value="016">016</option>
<option value="017">017</option>
<option value="018">018</option>
<option value="019">019</option>
<option value="011">011</option>
</select> -
<input type="text" name="phone2" size="5" value=<%=phone2 %>> - <input type="text" name="phone3" size="5" value=<%=phone3 %>> <br />
<%
if(gender.equals("man")) {
%>
성별구분 : <input type="radio" name="gender" value="man" checked="checked">남 <input type="radio" name="gender" value="woman">여 <br />
<%
} else {
%>
성별구분 : <input type="radio" name="gender" value="man" >남 <input type="radio" name="gender" value="woman" checked="checked">여 <br />
<%
}
%>
<input type="submit" value="정보수정"> <input type="reset" value="취소">
</form>
</body>
</html>ModifyOk Servlet(Model-DB)
package com.javalec.ex;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
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;
/**
* Servlet implementation class ModifyOk
*/
@WebServlet("/ModifyOk")
public class ModifyOk extends HttpServlet {
private static final long serialVersionUID = 1L;
private Connection connection;
private Statement stmt;
private String name, id, pw, phone1, phone2, phone3, gender;
HttpSession httpSession;
/**
* @see HttpServlet#HttpServlet()
*/
public ModifyOk() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
actionDo(request, response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
actionDo(request, response);
}
private void actionDo(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("EUC-KR");
// session 가져오기
httpSession = request.getSession();
// 세션에 있던 값
name = request.getParameter("name");
id = request.getParameter("id");
pw = request.getParameter("pw");
phone1 = request.getParameter("phone1");
phone2 = request.getParameter("phone2");
phone3 = request.getParameter("phone3");
gender = request.getParameter("gender");
//세션의 비번값과 입력된 비번값이 일치
if(pwConfirm()){
System.out.println("OK");
//DB에서 값 업데이트
String query = "update member set name ='" + name + "', phone1= '" + phone1 + "', phone2 = '" + phone2 + "', phone3 = '" + phone3 + "', gender = '" + gender + "'";
// System.out.println(query);
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
connection = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe" , "scott" , "tiger");
stmt = connection.createStatement();
int i = stmt.executeUpdate(query);
//쿼리 실행결과가 1 이면 true
if(i ==1 ){
System.out.println("update success");
httpSession.setAttribute("name", name);
response.sendRedirect("modifyResult.jsp");
//실행된 쿼리가 없으면
} else {
System.out.println("update fail");
response.sendRedirect("modify.jsp");
}
} catch(Exception e) {
e.printStackTrace();
} finally {
try {
if(stmt != null) stmt.close();
if(connection != null) connection.close();
} catch (Exception e) {}
}
} else {
System.out.println("NG");
}
}
private boolean pwConfirm() {
boolean rs = false;
//Obj인 세션값 형변환, session에서 pw가져오기
String sessionPw = (String)httpSession.getAttribute("pw");
//session에서 가져온 pw가 일치하면 참
if(sessionPw.equals(pw)) {
rs = true;
} else {
rs = false;
}
return rs;
}
}
Reference
この問題について(JSP|DB:会員登録と会員情報修正プログラミング), 我々は、より多くの情報をここで見つけました https://velog.io/@kji306301/JSP-DB-회원가입-및-회원정보-수정-프로그래밍テキストは自由に共有またはコピーできます。ただし、このドキュメントのURLは参考URLとして残しておいてください。
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