java连接Oracle数据库
JDBC(Java Data Base Connectivity,java数据库连接),那么我们该如何用java进行数据库的连接呢。
import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; public class JDBC { public static void main(String[] args) { //1.导入jar包 项目名---->buid path----->Add E~ //2.加载驱动 try { Class.forName("oracle.jdbc.driver.OracleDriver"); //3.创建链接对象 Connection con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORCL","xkq","123456"); //4.创建执行对象 PreparedStatement pst =con.prepareStatement("select * from stuInfo"); //5.执行sql语句 ResultSet rs=pst.executeQuery(); //6.获取结果集合 while(rs.next()){ System.out.println(rs.getInt(1)); System.out.println(rs.getString(2)); System.out.println(rs.getInt(3)); System.out.println(rs.getString(4)); System.out.println(rs.getString(5)); System.out.println(rs.getString(6)); System.out.println(rs.getString(7)); } } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (SQLException e) { e.printStackTrace(); } } }
时间: 2024-11-05 00:40:26