jdbc学习代码记录_jdbc基本步骤

package cn.itcast.jdbc;

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

public class Base {
public static void main(String[] args) throws SQLException{
new Base().test();
}

static void test() throws SQLException{
//1.register dbdriver
DriverManager.registerDriver(new com.mysql.jdbc.Driver());
//2.connect to db
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/jdbc","root","sql");
//3.create statment
Statement st = conn.createStatement();
//4.execute statement
ResultSet rs = st.executeQuery("select * from user");
//5.handle the result
while(rs.next()){
System.out.println(rs.getObject(1)+"\t"+
rs.getObject(2));
}
//6.release resource
rs.close();
st.close();
conn.close();
}
}