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使用JDBC链接Oracle代码

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    public class OracleJdbcTest    
    {    
        String driverClass = "oracle.jdbc.driver.OracleDriver";    

        Connection con;    

        public void init(FileInputStream fs) throws ClassNotFoundException, SQLException, FileNotFoundException, IOException    
        {    
            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();    
        }    
    }   

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