package com.shsxt.jdbcs;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class Demo002JDBCConnect {
public static void main(String[] args) throws ClassNotFoundException {
Class.forName( "oracle.jdbc.driver.OracleDriver" );
String url = "jdbc:oracle:thin:@localhost:1521:orcl" ;
String user= "scott" ;
String pwd= "tiger" ;
Connection conn = null ;
Statement s = null ;
ResultSet rs = null ;
try {
conn = DriverManager.getConnection(url, user, pwd);
s = conn.createStatement();
String sql = "select deptno, dname, loc from dept" ; rs = s.executeQuery(sql);
while (rs.next()){
int deptno = rs.getInt( 1 );
String dname = rs.getString( "dname" );
String loc = rs.getString( 3 );
System.out.println(deptno + "\t" + dname + "\t" + loc);
}
} catch (SQLException e) { e.printStackTrace();
} finally {
if (rs!= null ){
try {
rs.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if (s!= null ){
try {
s.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if (conn!= null ){
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}
}
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