ordersheetdao.java

网上购物系统

package eshopsys.ordersheet.model;

import java.sql.*;
import java.util.*;
import eshopsys.tools.base.BaseDao;
import eshopsys.tools.base.BaseEntity;
import eshopsys.tools.database.DataBaseTool;
import eshopsys.ordersheet.model.*;

public class OrderSheetDao extends BaseDao {
//////////////////////////////////////////////////////////////////////////
	protected BaseEntity[] pack(ResultSet resultset) throws SQLException {
		 ArrayList result = new ArrayList();
		 OrderSheetEntity[] ordersheets = null;
		    while (resultset.next()) {
		      OrderSheetEntity ordersheet = new OrderSheetEntity();
		      ordersheet.setOrderId(resultset.getInt("orderid"));
		      ordersheet.setUserId(resultset.getInt("userid"));
		      ordersheet.setOrderDate(resultset.getString("orderdate"));
		      ordersheet.setOrderShipAddress(resultset.getString("ordershipaddress"));
		      ordersheet.setOrderPayFlag(resultset.getInt("orderpayflag"));
		      
		      result.add(ordersheet);
		    }
		    if (result.size() > 0) {
		      ordersheets= new OrderSheetEntity[result.size()];
		      result.toArray(ordersheets);
		    }
		    return ordersheets;

	}
//////////////////////////////////////////////////////////////////////////	
	public void insert(OrderSheetEntity ordersheet) throws
    SQLException {
    PreparedStatement ps = null;
    StringBuffer buffer = new StringBuffer();
    try {
    //构造添加sql语句
    buffer.append("INSERT INTO tbl_ordersheet(orderid,userid,orderdate,ordershipdate,ordershipaddress,orderpayflag)");
    buffer.append(" VALUES(?,?,?,?,?,?)");

    ps = con.prepareStatement(buffer.toString());
    //设置sql语句的参数
    int index = 1;
    int currentId=getMaxPrimaryId("tbl_ordersheet","orderid");
    ps.setInt(index++,currentId);
    ps.setInt(index++, ordersheet.getUserId());
    ps.setString(index++, ordersheet.getOrderDate());
    ps.setString(index++, ordersheet.getOrderShipDate());
    ps.setString(index++, ordersheet.getOrderShipAddress());
    ps.setInt(index++, ordersheet.getOrderPayFlag());

    
    //执行sql语句
    ps.executeUpdate();
  }
  catch (Exception e) {
    throw new SQLException("向表(tbl_ordersheet)中插入数据发生异常 ： " + e.getMessage());
  }
  finally {
    DataBaseTool.close(ps);
  }
 }
//////////////////////////////////////////////////////////////////////////
	//更新一条会员记录
	  public void update( OrderSheetEntity ordersheet) throws     
	 SQLException {
	    PreparedStatement ps = null;
	    StringBuffer buffer = new StringBuffer();
	    try {
	      //构造更新sql语句
	      buffer.append("UPDATE tbl_ordersheet SET ");
	      buffer.append("orderid=?,userid=?,orderdate=?,ordershipdate=?,ordershipaddress=?,orderpayflag=?");
	      buffer.append(" WHERE orderid = ?");
	      ps = con.prepareStatement(buffer.toString());

	      //设置参数
	      int index = 1;
	      ps.setInt(index++, ordersheet.getOrderId());
	      ps.setInt(index++, ordersheet.getUserId());
	      ps.setString(index++, ordersheet.getOrderDate());
	      ps.setString(index++, ordersheet.getOrderShipDate());
	      ps.setString(index++, ordersheet.getOrderShipAddress());
	      ps.setInt(index++, ordersheet.getOrderPayFlag());
	      ps.setInt(index++, ordersheet.getOrderId());
	      //执行
	      ps.executeUpdate();
	    }
	    catch (Exception e) {
	      throw new SQLException("更新表(tbl_ordergoodlist)时发生异常 : " + e.getMessage());
	    }
	    finally {
	      DataBaseTool.close(ps);
	    }
	  }

}