cartbiz.java

来自「sorry i have only one」· Java 代码 · 共 36 行

package cart.biz;

import cart.util.*;
import cart.dao.ProductDao;
import java.sql.Connection;
import cart.model.Product;
import java.sql.SQLException;

public class CartBiz
{
  Connection conn=null;
  ProductDao productDao=new ProductDao();
  
  public Product getProductById(int id)throws SQLException{
    conn=ConnUtil.getConnection();
    Product p=null;
    try{
      p=(Product) productDao.selectById(conn,id);
    }catch(SQLException e){
      throw e;
    }
    return p;
  }

  public static void main(String[] args){
  	CartBiz p=new CartBiz();
	Product pd=null;
	try{
		pd=p.getProductById(1);
		System.out.println(pd.getName());
	}catch(Exception e){
		e.printStackTrace();
	}
  }
}