利用Java编码实现对oracle数据库的操做

 private static String driver = "oracle.jdbc.driver.OracleDriver";    // 驱动URL jdbc:oracle:thin:@127.0.0.1:1521:monitor    private static String url = "jdbc:oracle:thin:@127.0.0.1:1521:studb";    // 登录数据库的用户名    private static String uname = "system";    // 登录数据的密码    private static String upassword = "student";

   public static void testOracleConn() {       try {          // 得到DriverManager          Class.forName(driver);          // 建立链接          Connection conn = DriverManager                .getConnection(url, uname, upassword);          // 测试驱动是否得到          System.out.println(conn);

         // sql语句          // String sql = "select id from student where name = ?";          // Statement          // PreparedStatement pstmt = conn.prepareStatement(sql);          // 注入参数          // pstmt.setString(1, "zzw");

         // sql语句          String sql = "select * from student";          // Statement          Statement stmt = conn.createStatement();          //          ResultSet rs = stmt.executeQuery(sql);          // 循环输出rs          while (rs.next()) {System.out.println("姓名：" + rs.getString(2) + "   年龄："                  + rs.getInt(3));          }       } catch (ClassNotFoundException | SQLException e) {          // TODO Auto-generated catch block          e.printStackTrace();       }    }