jdbc之连接Oracle的基本步骤

// 1.加载驱动程序
Class.forName("oracle.jdbc.driver.OracleDriver");
// 2.获取数据库连接
Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl", "j0408", "1");
// 3.构建SQL语句
String sql = "insert into t_user(userid,username,password)values(seq_t_user.nextval,'abc','123456')";
// 4.执行SQL语句
Statement sts = conn.createStatement(); 
// 返回的结果是影响的行数
int count = sts.executeUpdate(sql);
System.out.println("影响的行数："+count);
// 5.关闭资源
sts.close();
conn.close();