oracle 连接数据库 【备忘】

Connection conn = null;
  try {
   Class.forName("oracle.jdbc.driver.OracleDriver"); // 加载驱动类
   String sourceURL = "jdbc:oracle:thin:@localhost:1521:oracle";
   String user = "root";// 我新建的用户
   String password = "root";// 密码,
   String sql="insert into dept2 values(?,?,?)";
   conn = DriverManager.getConnection(sourceURL, user, password); // 建立连接
      PreparedStatement ps=conn.prepareStatement(sql);
      ps.setInt(1,80);
      ps.setString(2,"葛优大哥");
      ps.setString(3,"电影明星");
      ps.executeUpdate();
      ps.close();
      conn.close(); 
     
  } catch (Exception e) {
   e.printStackTrace();
  }*/