안녕하세요 엘체프 GG 입니다.
데이터를 수정,조건조회,전체조회,삭제 해보겠습니다.
1에서 구조가 잡혀 있어서 MemberDAOServiceImpl 만 추가 적으로 소스 만들고 test페이지만 만들면 됩니다.
-MemberDAOServiceImpl
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 | package kr.co.js.jdbc.service; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.util.ArrayList; import java.util.List; import kr.co.js.jdbc.domain.MemberVO; /** * DAO 구현 클래스(concrete class) * * @author Administrator * */ public class MemberDAOServiceImpl implements MemberDAOService { // DB 연결정보 private static final String oracleDriver = "oracle.jdbc.OracleDriver"; private static final String oracleURL = "jdbc:oracle:thin:@localhost:1521:xe"; private static final String oracleID = "greenjava"; private static final String oraclePW = "greenjava"; // 싱글턴(singleton) 패턴 private static MemberDAOServiceImpl instance = null; private MemberDAOServiceImpl() { } public static final MemberDAOServiceImpl getInstance() { if (instance == null) { instance = new MemberDAOServiceImpl(); } return instance; } /** * DB 연결(connect) * * @return DB연결 객체 */ public Connection getConnection() { Connection conn = null; try { Class.forName(oracleDriver); try { conn = DriverManager.getConnection(oracleURL, oracleID, oraclePW); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } } catch (ClassNotFoundException e) { System.out.println("DAO getConnection : " + oracleDriver); e.printStackTrace(); } return conn; } /** * DB연결 자원 반납 * * @param conn DB연결 객체 * @param pstmt SQL 해석 객체 * @param rs 결과셋 객체 */ public void closeAll(Connection conn, PreparedStatement pstmt, ResultSet rs) { try { if (rs != null) rs.close();// 유효성검사 후 자원 반납 if (pstmt != null) pstmt.close(); if (conn != null) conn.close(); } catch (SQLException e) { System.out.println("DB close"); e.printStackTrace(); } } //회원정보 삽입(가입,생성) @Override public void insertMember(MemberVO memberVo) { Connection conn = null;// 연결 객체 PreparedStatement pstmt = null;// SQL 해석 객체 String sql = "INSERT INTO MEMBER VALUES (?,?,?,?,sysdate)"; conn = this.getConnection(); // DB연결 try { pstmt = conn.prepareStatement(sql); // SQL 해석 pstmt.setString(1, memberVo.getMemberId()); pstmt.setString(2, memberVo.getMemberName()); pstmt.setString(3, memberVo.getMemberPw()); pstmt.setString(4, memberVo.getMemberAddr()); // pstmt.setDate(5, memberVo.getMemberJoindate()); if (pstmt.executeUpdate() == 1) { System.out.println("성공적으로 회원 정보를 저장하였습니다."); } else { System.out.println("회원정보 저장에 실패 했습니다."); } } catch (SQLException e) { System.out.println("insertMember SQLE : "); e.printStackTrace(); } finally { this.closeAll(conn, pstmt, null); } } //전체회원 정보 조회(검색) @Override public List<MemberVO> getAllMembers() throws Exception { List<MemberVO> members = new ArrayList<MemberVO>();//리턴값을 만들어줘야지~! Connection conn = this.getConnection();// 연결 객체 PreparedStatement pstmt = null;// SQL 해석 객체 String sql = "SELECT * FROM member"; ResultSet rs = null;// row(결과) 집합(set) // MemberVO member = new MemberVO();//주의 같은 레코드 반복 인쇄! =>오류! MemberVO member =null; try { pstmt = conn.prepareStatement(sql); // SQL 해석 rs = pstmt.executeQuery(); while (rs.next()) { member = new MemberVO();//대처법 : 레코드 (record,row) member.setMemberId(rs.getString("member_id")); member.setMemberName(rs.getString("member_name")); member.setMemberPw(rs.getString("member_pw")); member.setMemberAddr(rs.getString("member_addr")); member.setMemberJoindate(rs.getDate("member_joindate")); members.add(member); } // SQL 실행 } catch (Exception e) { System.out.println("get All Member E : "); e.printStackTrace(); } finally { this.closeAll(conn, pstmt, rs); } return members; } //개별 회원 정보 조회(검색) @Override public MemberVO getMember(String memberId) throws Exception { Connection conn = this.getConnection();// 연결 객체 PreparedStatement pstmt = null;// SQL 해석 객체 String sql = "SELECT * FROM member WHERE member_id=?"; ResultSet rs = null;// row(결과) 집합(set) MemberVO member = new MemberVO(); try { pstmt = conn.prepareStatement(sql); // SQL 해석 pstmt.setString(1, memberId); rs = pstmt.executeQuery(); while (rs.next()) { member.setMemberId(rs.getString("member_id")); member.setMemberName(rs.getString("member_name")); member.setMemberPw(rs.getString("member_pw")); member.setMemberAddr(rs.getString("member_addr")); member.setMemberJoindate(rs.getDate("member_joindate")); } } catch (Exception e) { System.out.println("select Member E : "); e.printStackTrace(); } finally { this.closeAll(conn, pstmt, rs); } return member; } //개별 회원 정보 수정(갱신,변경) @Override public void updateMember(MemberVO memberVo) throws Exception { Connection conn = this.getConnection();// 연결 객체 PreparedStatement pstmt = null;// SQL 해석 객체 // Statement 사용시 SQL /* * String sql = "UPDATE member SET member_pw = '"+ * memberVO.getMemberPw() +"'," + * "member_addr = '"+memberVO.getMemberAddr()+"' " + * "WHERE member_id = '"+memberVO.getMemberId()+"'"; */ // PreparedStatement 사용시 SQL /* * String sql = "UPDATE member SET member_pw=?," + * " member_addr=? " + " WHERE member_id=?"; */ StringBuilder sql = new StringBuilder(); /* * sql.append("UPDATE member SET "); sql.append(" member_pw=?,"); * sql.append(" member_addr=? "); sql.append("WHERE member_id=?"); */ sql.append("UPDATE member SET ") .append(" member_pw=?,") .append(" member_addr=?") .append(" WHERE member_id=?"); try { pstmt = conn.prepareStatement(sql.toString()); // SQL 인자처리 pstmt.setString(1, memberVo.getMemberPw()); pstmt.setString(2, memberVo.getMemberAddr()); pstmt.setString(3, memberVo.getMemberId()); // SQL 실행 if (pstmt.executeUpdate() == 1) { System.out.println("회원정보 수정에 성공하였습니다."); } else { System.out.println("회원정보 수정에 실패하였습니다."); } } catch (Exception e) { System.out.println("uptateMember E : "); e.printStackTrace(); } finally { this.closeAll(conn, pstmt, null); } } //개별 회원 정보 삭제 @Override public void deleteMember(String memberId) throws Exception { Connection conn = this.getConnection();// 연결 객체 PreparedStatement pstmt = null;// SQL 해석 객체 String sql = "DELETE member WHERE member_id=?"; try { pstmt = conn.prepareStatement(sql); // SQL 해석 pstmt.setString(1, memberId); if(pstmt.executeUpdate()==1){ System.out.println("회원정보를 성공적으로 삭제했습니다."); }else{ System.out.println("회원정보 삭제에 실패했습니다."); } } catch (Exception e) { System.out.println("delete Member E : "); e.printStackTrace(); } finally { this.closeAll(conn, pstmt, null); } return; } } | cs |
-selectTestPage
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | /** * */ package kr.co.js.jdbc.test; import kr.co.js.jdbc.domain.MemberVO; import kr.co.js.jdbc.service.MemberDAOService; import kr.co.js.jdbc.service.MemberDAOServiceImpl; /** * select Unit test * @author Administrator * */ public class selectTest { /** * @param args * @throws Exception */ public static void main(String[] args) throws Exception { //싱글톤 객체 호출 MemberDAOService dao = MemberDAOServiceImpl.getInstance(); MemberVO member = dao.getMember("n123"); System.out.println("member : " + member); } } | cs |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | /** * */ package kr.co.js.jdbc.test; import java.util.List; import kr.co.js.jdbc.domain.MemberVO; import kr.co.js.jdbc.service.MemberDAOService; import kr.co.js.jdbc.service.MemberDAOServiceImpl; /** * selectAll Unit test * @author Administrator * */ public class allSelectTest { /** * @param args * @throws Exception */ public static void main(String[] args) throws Exception { //싱글톤 객체 호출 MemberDAOService dao = MemberDAOServiceImpl.getInstance(); List<MemberVO> members = dao.getAllMembers(); for(MemberVO member : members){ System.out.println("member : " + member); } } } | cs |
-updateTestPage
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | /** * */ package kr.co.js.jdbc.test; import kr.co.js.jdbc.domain.MemberVO; import kr.co.js.jdbc.service.MemberDAOService; import kr.co.js.jdbc.service.MemberDAOServiceImpl; /** * update Unit test * @author Administrator * */ public class updateTest { /** * @param args * @throws Exception */ public static void main(String[] args) throws Exception { //싱글톤 객체 호출 MemberDAOService dao = MemberDAOServiceImpl.getInstance(); MemberVO member = new MemberVO(); member.setMemberId("n123"); member.setMemberPw("1"); member.setMemberAddr("1"); dao.updateMember(member); } } | cs |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | package kr.co.js.jdbc.test; import kr.co.js.jdbc.service.MemberDAOService; import kr.co.js.jdbc.service.MemberDAOServiceImpl; /** * delete Unit test * @author Administrator * */ public class deleteTest { /** * @param args * @throws Exception */ public static void main(String[] args) throws Exception { //싱글톤 객체 호출 MemberDAOService dao = MemberDAOServiceImpl.getInstance(); dao.deleteMember("n123"); } } | cs |
오늘 하루 수고 하셧습니다.
감사합니다.
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