public int insert(BookVo vo) {
int count = 0;
Connection conn = null;
PreparedStatement pstmt = null;
try {
// 1. 드라이버 로딩
Class.forName("oracle.jdbc.driver.OracleDriver");
// 2. 연결 얻어오기
String url = "jdbc:oracle:thin:@localhost:1521:xe";
conn = DriverManager.getConnection(url, "skudb", "skudb");
// 3. statement 준비
String sql = "insert into book values(seq_book.nextval, ?, ?, ?, ?)";
pstmt = conn.prepareStatement(sql);
// 4. 바인딩
pstmt.setString(1, vo.getTitle());
pstmt.setInt(2, vo.getRate());
pstmt.setInt(3, vo.getStatus());
pstmt.setLong(4, vo.getAuthorNo());
// 5. query 실행
count = pstmt.executeUpdate();
} catch (ClassNotFoundException e) {
System.out.println("드라이버 로딩 실패 :" + e);
} catch (SQLException e) {
System.out.println("error:" + e);
} finally {
try {
// 6. 자원정리
if (pstmt != null) {
pstmt.close();
}
if (conn != null) {
conn.close();
}
} catch (SQLException e) {
System.out.println("error:" + e);
}
}
return count;
}
public List<BookVo> getList() {
List<BookVo> list = new ArrayList<BookVo>();
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try {
// 1. 드라이버 로딩
Class.forName("oracle.jdbc.driver.OracleDriver");
// 2. 연결 얻어오기
String url = "jdbc:oracle:thin:@localhost:1521:xe";
conn = DriverManager.getConnection(url, "skudb", "skudb");
// 3. statement 생성
stmt = conn.createStatement();
// 4. SQL문 실행
String sql =
" select a.no,"
+ " a.title,"
+ " a.rate,"
+ " a.status,"
+ " b.name"
+ " from book a,"
+ " author b"
+ " where a.author_no = b.no"
+ " order by a.no asc";
rs = stmt.executeQuery(sql);
// 5. 결과 처리
while (rs.next()) {
Long no = rs.getLong(1);
String title = rs.getString(2);
Integer rate = rs.getInt(3);
Integer status = rs.getInt(4);
String authorName = rs.getString(5);
BookVo vo = new BookVo();
vo.setNo(no);
vo.setTitle(title);
vo.setRate(rate);
vo.setStatus(status);
vo.setAuthorName(authorName);
list.add(vo);
}
} catch (ClassNotFoundException e) {
System.out.println("드라이버 로딩 실패 :" + e);
} catch (SQLException e) {
System.out.println("error:" + e);
} finally {
try {
// 6. 자원정리
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
if (conn != null) {
conn.close();
}
} catch (SQLException e) {
System.out.println("error:" + e);
}
}
return list;
}