java JDBC (三) 修改

package cn.sasa.demo3;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Scanner;

public class JDBCDemo3 {

    public static void main(String[] args) throws ClassNotFoundException, SQLException {
        double price = 0;
        int pid = 0;
        Scanner sc = new Scanner(System.in);
        System.out.println("price");
        price = sc.nextDouble();
        System.out.println("pid");
        pid = sc.nextInt();
        Class.forName("com.mysql.jdbc.Driver");
        Connection conn = DriverManager.getConnection("jdbc:mysql://192.168.0.207:3306/mydb", "root", "XXXXXXXXXXXXXX1");
        
        String sql = "UPDATE product SET price=? WHERE pid=?;";
        PreparedStatement pstate = conn.prepareStatement(sql);
        pstate.setObject(1, price);
        pstate.setObject(2, pid);
        int rows = pstate.executeUpdate();
        System.out.println(rows);
        
        pstate.close();
        conn.close();
    }

}