随笔档案

package com.jdbc.odbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class Jdbc_Demo {
 public static void main(String[] args) {
  
  try {
   
       Class.forName("oracle.jdbc.driver.OracleDriver");
       Connection ct = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl","scott","tiger");
       Statement st = ct.createStatement();
       ResultSet rs = st.executeQuery("select * from emp");
        while(rs.next()){
     
             System.out.println("用户名："+rs.getString(2));
    }
        rs.close();
        st.close();
        ct.close();
  } catch (ClassNotFoundException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (SQLException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
 }

}