//cmsdb.java
package cms_sql;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Scanner;
public class cmsdb {
//전역 변수들 선언
static String driver = "oracle.jdbc.driver.OracleDriver";
static String url = "jdbc:oracle:thin:@localhost";
static String user = "scott";
static String password = "tiger";
static Connection conn = null;
static int cl_id = 0;
static String cl_name = null;
static String cl_gender = null;
static String cl_email = null;
static int cl_birthyear = 0;
public static void main(String[] args) {
conn = MakeConnection.getConnection();
System.out.println("conn: " + conn);
Scanner sc = new Scanner(System.in);
System.out.println("이름을 입력하세요:");
cl_name = sc.next();
System.out.println("성별을 입력하세요(M/F):");
cl_gender = sc.next();
System.out.println("이메일을 입력하세요:");
cl_email = sc.next();
System.out.println("생년을 입력하세요:");
cl_birthyear = Integer.parseInt(sc.next().replaceAll("[^0-9]", ""));
insertEx(conn, cl_name, cl_gender, cl_email, cl_birthyear);
//cmd로 실행 시 매개변수(args[])로 받아온 고객 정보로 insert 시행
/*
insertEx(conn, args[0], args[1], args[2], Integer.parseInt(args[3].replaceAll("[^0-9]", "")));
*/
String sql = "select * from client_info ";
try {
PreparedStatement pstmt = conn.prepareStatement(sql);
ResultSet rs = pstmt.executeQuery();
while(rs.next()) {
System.out.print(rs.getInt(1));
System.out.print(", ");
System.out.print(rs.getString(2));
System.out.print(", ");
System.out.print(rs.getString(3));
System.out.print(", ");
System.out.print(rs.getString(4));
System.out.print(", ");
System.out.print(rs.getInt(5));
System.out.print(", ");
System.out.print(rs.getString(6));
System.out.print(", ");
System.out.print(rs.getString(7));
System.out.println();
}
} catch (SQLException e) {
e.printStackTrace();
}
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
System.out.println("완료.");
}
//insertEx 메서드 정의
public static void insertEx(Connection conn, String cl_name, String cl_gender, String cl_email, int cl_birthyear) {
StringBuffer sb = new StringBuffer();
sb.append("insert into client_info(cl_id, cl_name, cl_gender, cl_email, cl_birthyear) ");
sb.append("values(cl_seq.nextval, ?, ?, ?, ?)");
try {
PreparedStatement pstmt = conn.prepareStatement(sb.toString());
pstmt.setString(1, cl_name);
pstmt.setString(2, cl_gender);
pstmt.setString(3, cl_email);
pstmt.setInt(4, cl_birthyear);
pstmt.executeUpdate();
pstmt.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
//MakeConnection.java
package cms_sql;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class MakeConnection {
private static String DRIVER = "oracle.jdbc.driver.OracleDriver";
private static String URL = "jdbc:oracle:thin:@localhost";
private static String USER = "scott";
private static String PASSWORD = "tiger";
static Connection conn = null;
private static MakeConnection mc;
private MakeConnection() {}
public static MakeConnection getInstance() {
if(mc == null) mc = new MakeConnection();
return mc;
}
public static Connection getConnection() {
try {
Class.forName(DRIVER);
conn = DriverManager.getConnection(URL, USER, PASSWORD);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
return conn;
}
}