Java 使用JDBC链接Oracle，javajdbc链接oracle,public class

Java 使用JDBC链接Oracle，javajdbc链接oracle,public class

public class OracleJdbcTest {     String driverClass = "oracle.jdbc.driver.OracleDriver";     Connection con;     public void init(FileInputStream fs) throws Exception     {         Properties props = new Properties();         props.load(fs);         String url = props.getProperty("db.url");         String userName = props.getProperty("db.user");         String password = props.getProperty("db.password");         Class.forName(driverClass);         con=DriverManager.getConnection(url, userName, password);     }     public void fetch() throws SQLException, IOException     {         PreparedStatement ps = con.prepareStatement("select SYSDATE from dual");         ResultSet rs = ps.executeQuery();         while (rs.next())         {             // do the thing you do         }         rs.close();         ps.close();     }     public static void main(String[] args)     {         OracleJdbcTest test = new OracleJdbcTest();         test.init();         test.fetch();     } }//该片段来自于http://byrx.net